AUDIO AND VISUAL SYSTEM

Transcription

1 Negative (-) Battery Terminal AUDIO / VISUAL AUDIO AND VISUAL SYSTEM Cable D033496E01 AUDIO AND VISUAL SYSTEM PRECAUTION 1 1. DISCONNECT AND RECONNECT CABLE OF NEGATIVE BATTERY TERMINAL (a) Before performing electronic work, disconnect the cable from the negative (-) battery terminal in order to prevent it from shorting and burning out. (b) Before disconnecting and reconnecting the battery cable, turn the ignition switch OFF and the headlight dimmer switch OFF. Then loosen the terminal nut completely. Do not damage the cable or terminal. (c) When the battery cable is disconnected, the clock and radio settings and stored DTCs are erased. Therefore, before disconnecting the battery cable, make a notes of them. NOTICE: When the cable is disconnected from the negative (-) battery terminal, initialize the following system(s) after the cable is reconnected. System name METER / GAUGE SYSTEM See procedure ME-10

2 2 PARTS LOCATION AUDIO / VISUAL AUDIO AND VISUAL SYSTEM RADIO RECEIVER FRONT NO. 2 SPEAKER LHD STEREO JACK ADAPTER STEERING PAD SWITCH WOOFER SPEAKER SWITCH* NOISE FILTER FRONT NO. 2 SPEAKER RHD *: W/ WOOFER SPEAKER B133385E01

3 AUDIO / VISUAL AUDIO AND VISUAL SYSTEM 3 ROOF ANTENNA POLE SUB-ASSEMBLY ROOF SPEAKER RHD ROOF SPEAKER LHD REAR SPEAKER RHD FRONT NO. 1 SPEAKER LHD FRONT NO. 1 SPEAKER RHD WOOFER SPEAKER* *: W/ WOOFER SPEAKER REAR SPEAKER LHD B133386E01

4 4 AUDIO / VISUAL AUDIO AND VISUAL SYSTEM SYSTEM DIAGRAM Antenna Woofer Speaker Switch* Woofer Speaker* Steering Pad Switch Front No. 1 Speaker (LH) Spiral Cable Front No. 1 Speaker (RH) Radio Receiver Noise Filter Stereo Jack Adapter Front No. 2 Speaker (LH) Roof Speaker (LH) Front No. 2 Speaker (RH) Roof Speaker (RH) Rear Speaker (LH) Sound Signal Rear Speaker (RH) Sound Signal Condenser *: w/ Woofer Speaker E130759E01

5 AUDIO / VISUAL AUDIO AND VISUAL SYSTEM 5 SYSTEM DESCRIPTION 1. CD PLAYER OUTLINE (a) A CD player uses a laser pickup to read digital signals recorded on CDs. By converting the digital signals to analog, music and other contents can be played. CAUTION: Do not look directly at the laser pickup because the CD player uses an invisible laser beam. Be sure to operate the player only as instructed. NOTICE: Do not disassemble any part of the CD player. Do not apply oil to the CD player. Do not insert anything but a CD into the CD player. (b) Usable CDs E (c) Precautions for use of discs NOTICE: Copy-protected CDs cannot be played. Dual discs cannot be played. Playing dual discs may cause malfunctions of the CD player. CD-Rs and CD-RWs may not be played depending on the recording conditions or characteristics of the discs, or due to damage, dirt, or deterioration caused by leaving the discs in the cabin for a long time. Unfinalized CD-Rs and CD-RWs cannot be played. PAL or SECAM color television standard discs cannot be played. (Only NTSC discs can be played.) Keep the discs away from dirt. Be careful not to damage the discs or leave your fingerprints on them. Hold discs by the outer edge and center hole with the label side up. Leaving the disc exposed halfway out of the slot for a long time after pressing the disc eject button may cause deformation of the disc, making the disc unusable.

6 6 AUDIO / VISUAL AUDIO AND VISUAL SYSTEM I If discs have adhesive tape, stickers, CDR labels, or any traces of such labels attached, the discs may not be ejected or player malfunctions may result. Keep the discs away from direct sunlight. (Exposure to direct sunlight may cause deformation of the disc, making the disc unusable.) Do not use odd-shaped CDs because these may cause player malfunctions. Do not use discs whose recording portion is transparent or translucent because they may not be inserted, ejected, or played normally. HINT: When it is cold or it is raining, if the windows mist up, mist and also dew may form in the player. In such a case, the CD may skip or the CD may stop in the middle of play. Ventilate or dehumidify the cabin for a while before using the player. The CD may skip if the player experiences strong vibrations when the vehicle is driven on rough road or similar uneven surface(s). (d) Cleaning NOTICE: Do not use a lens cleaner because it may cause a malfunction in the pickup portion of the player. (1) If dirt is on the disc surface, wipe it clean with a soft dry cloth such as an eyeglass cleaner for plastic lenses from the center to the outside in a radial direction. NOTICE: Pressing on the disc by hand or rubbing the disc with a hard cloth may scratch the disc surface. Use of solvent such as a record spray, antistatic agent, alcohol, benzine, and thinner, or a chemical cloth may cause damage to the disc, making the disc unusable. 2. MP3/WMA OUTLINE (a) Playable MP3 file standards Compatible standard MP3 (MPEG1 LAYER3, MPEG2 LSF LAYER 3) Compatible sampling frequency Compatible bit rate Compatible channel mode MPEG1 LAYER3: 32, 44.1, 48 (khz) MPEG2 LSF LAYER3: 16, 22.05, 24 (khz) MPEG1 LAYER3: 64, 80, 96, 112, 128, 160, 192, 224, 256, 320 (kbps) MPEG2 LSF LAYER3: 64, 80, 96, 112, 128, 160 (kbps) Compatible with VBR Stereo, joint stereo, dual channel, monaural (b) Playable WMA file standards Compatible standard WMA Ver. 7, 8, and 9 Compatible sampling frequency 32, 44.1, 48 (khz)

7 AUDIO / VISUAL AUDIO AND VISUAL SYSTEM 7 Compatible bit rate Ver. 7, 8: CBR48, 64, 80, 96, 128, 160, 192 (kbps) Ver. 9: CBR48, 64, 80, 96, 128, 160, 192, 256, 320 (kbps) Compatible with playback of channel 2 only (c) (d) (e) ID3 tags and WMA tags (1) Additional textual information called ID3 tags can be input to MP3 files. Information such as song titles and artist names can be stored. HINT: This player is compatible with the ID3 tags of ID3 Ver. 1.0 and 1.1, and ID3 Ver. 2.2 and 2.3. (Number of characters complies with ID3 Ver. 1.0 and 1.1.) (2) Additional textual information called WMA tags can be input to WMA files. Information such as song titles and artist names can be stored. Usable media (1) Only CD-ROMs, CD-Rs (CD-Recordable), and CD-RWs (CD-ReWritable) can be used to play MP3/WMA files. NOTICE: CD-Rs and CD-RWs are more easily affected by a hot and humid environment than discs used for normal audio CDs. For this reason, some CD-Rs and CD-RWs may not be played. If there are fingerprints or scratches on the disc, the disc may not be played or the CD may skip. Some CD-Rs and CD-RWs deteriorate if they are left in the cabin for a long time. Keep CD-Rs and CD-RWs in a storage case that is impenetrable to light. Usable media format (1) Usable media format Disc format File format CD-ROM Mode 1, CD-ROM XA Mode 2 Form1 ISO9660 Level 1 and Level 2 (Joliet and Romeo) HINT: As for MP3/WMA files written in any format other than those above, the contents of the files may not be played normally or the file names or folder names may not be displayed correctly. This player is compatible with multi-session discs and can play CD-Rs and CD-RWs on which MP3/WMA files are added. However, only the first session can be played. Discs whose first session includes both music data and MP3 or WMA format data cannot be played. (2) Standard and restrictions Maximum directory levels Maximum number of characters for a folder name/file name 8 levels 32 characters

8 8 AUDIO / VISUAL AUDIO AND VISUAL SYSTEM Maximum number of folders Maximum number of files in a disc 192 (Including empty folders, route folders, and folders that do not contain MP3/WMA files) 255 (Including non-mp3/wma files) (f) File names (1) Only files with an extension of ".mp3" or ".wma" can be recognized and played as MP3 or WMA files. (2) Save MP3 or WMA files with an extension of ".mp3" or ".wma". NOTICE: If saving non-mp3 or non-wma files with an extension of ".mp3" or ".wma", those files are wrongly recognized as MP3 or WMA files and played. A loud noise may occur and damage to the speakers may result.

9 AUDIO / VISUAL AUDIO AND VISUAL SYSTEM 9 HOW TO PROCEED WITH TROUBLESHOOTING HINT: In accordance with the following procedures, troubleshoot the audio and visual system. 1 VEHICLE BROUGHT TO WORKSHOP NEXT 2 INSPECT BATTERY VOLTAGE NEXT Standard Voltage: 11 to 14 V If the voltage is below 11 V, recharge or replace the battery before proceeding. 3 BASIC INSPECTION (a) (b) Turn the ignition switch to ACC. Check whether the display appears on the radio receiver. Display appears Display does not appear Result Proceed to A B B PROCEED TO PROBLEM SYMPTOMS TABLE A 4 PROBLEM SYMPTOMS TABLE Result Fault not listed in problem symptoms table Fault listed in problem symptoms table Proceed to A B B Go to step 6 A 5 OVERALL ANALYSIS AND TROUBLESHOOTING (a) Terminals of ECU (See page -12) NEXT

10 10 AUDIO / VISUAL AUDIO AND VISUAL SYSTEM 6 ADJUST, REPAIR OR REPLACE NEXT 7 CONFIRMATION TEST NEXT END

11 AUDIO / VISUAL AUDIO AND VISUAL SYSTEM 11 IDENTIFICATION OF NOISE SOURCE 1. Radio Description (a) Radio frequency band (1) Radio broadcasts use the radio frequency bands shown in the table below. Frequency 30 khz 300 khz 30 MHz 30 MHz 300 MHz Designation LF MF HF VHF Radio Wave AM FM Modulation Amplitude modulation Frequency modulation LF: Low Frequency MF: Medium Frequency HF: High Frequency VHF: Very High Frequency E108734E01 FM (Stereo) FM (Monaural) AM (b) (c) Service area (1) The service areas of AM and FM broadcasts are vastly different. Sometimes an AM broadcast can be received very clearly but an FM stereo cannot. FM stereo has the smallest service area, and is prone to pick up static and other types of interference such as noise. Radio reception problems HINT: In addition to static, other problems such as "phasing", "multipath", and "fade out" exist. These problems are not caused by electrical noise, but by the radio signal propagation method itself. E108735E01 Phasing: Ionosphere I100011E06 (1) Phasing AM broadcasts are susceptible to electrical interference and another kind of interference called phasing. Occurring only at night, phasing is the interference created when a vehicle receives 2 radio wave signals from the same transmitter. One signal is reflected off the ionosphere and the other signal is received directly from the transmitter.

12 12 Multipath: AUDIO / VISUAL AUDIO AND VISUAL SYSTEM (2) Multipath Multipath is a type of interference created when a vehicle receives 2 radio wave signals from the same transmitter. One signal is reflected off buildings or mountains and the other signal is received directly from the transmitter. I100012E05 Fade Out: I100013E05 (d) (3) Fade out Fade out is caused by objects (buildings, mountains, and other such large obstacles) that deflect away part of a signal, resulting in a weaker signal when the object is between the transmitter and the vehicle. High frequency radio waves, such as FM broadcasts, are easily deflected by obstructions. Low frequency radio waves, such as AM broadcasts, are much more difficult to deflect. Noise problem Technicians must have a clear understanding about each customer's noise complaint. Use the following table to diagnose noise problems. Radio Frequency Noise Occurrence Condition Presumable Cause AM Noise occurs in a specified area Foreign noise AM Noise occurs when listening to an intermittent broadcast An identical program transmitted from multiple towers can cause noise where the signals overlap AM Noise occurs only at night Music beat from a distant broadcast FM Noise occurs while driving in a specified area Multipath or phasing noise resulting from a change in FM frequency HINT: If the noise does not match the examples above, refer to the descriptions about phasing and multipath.

13 AUDIO / VISUAL AUDIO AND VISUAL SYSTEM 13 Audio Function Noise occurs PROBLEM SYMPTOMS TABLE HINT: Use the table below to determine the cause of the problem symptom. The potential causes of the symptom are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary. Symptom Suspected area See page Pressing power switch does not turn on system No sound can be heard from speakers (audio is mute) Sound quality is bad only when CD is played (volume is too low) CD cannot be ejected CD cannot be inserted / played or CD is ejected right after insertion CD sound skips Radio broadcast cannot be received (bad reception) Poor sound quality in all modes (low volume) Radio receiver cannot be illuminated at night External device sound cannot be heard or sound quality is bad. (Stereo jack is used.) Woofer system cannot be operated with woofer speaker switch (w/ woofer speaker) 1. Proceed to Noise Occurs Radio Receiver - 1. Proceed to Pressing Power Switch does not Turn on System Proceed to Radio Receiver Power Source Circuit Radio Receiver - 1. Proceed to No Sound can be Heard from Speakers (Audio is Mute) Proceed to Speaker Circuit Proceed to Radio Receiver Power Source Circuit Proceed to Woofer Speaker Power Source Circuit (w/ woofer speaker) Radio Receiver - 1. Proceed to Sound Quality is Bad Only when CD is played (Volume is too low) Proceed to Speaker Circuit Proceed to Woofer Speaker Power Source Circuit (w/ woofer speaker) Radio Receiver - 1. Proceed to CD cannot be Ejected Proceed to Radio Receiver Power Source Circuit Radio Receiver - 1. Proceed to CD cannot be Inserted / Played or CD is Ejected Right After Insertion Proceed to Radio Receiver Power Source Circuit Radio Receiver - 1. Proceed to CD Sound Skips Radio Receiver - 1. Proceed to Radio Broadcast cannot be Received (Bad Reception) Proceed to Poor Sound Quality in All Modes (Low Volume) Proceed to Speaker Circuit Radio Receiver - 1. Proceed to Illumination Circuit Radio Receiver - 1. Proceed to Sound Signal Circuit between Radio Receiver and Stereo Jack Adapter Stereo Jack Adapter - 3. Noise Filter - 4. Radio Receiver - 1. Proceed to Woofer Speaker Switch Circuit Radio Receiver - 3. Proceed to Woofer Speaker Power Source Circuit -51

14 14 AUDIO / VISUAL AUDIO AND VISUAL SYSTEM Steering Pad Switch Function Symptom Suspected area See page Audio system cannot be operated with steering pad switch Steering pad switch cannot be illuminated at night 1. Proceed to Steering Pad Switch Circuit Radio Receiver - 1. Proceed to Illumination Circuit Radio Receiver -

15 AUDIO / VISUAL AUDIO AND VISUAL SYSTEM 15 TERMINALS OF ECU 1. CHECK RADIO RECEIVER E41 E42 E43 Standard: (a) (b) Disconnect the E41 receiver connector. Measure the resistance and voltage of the wire harness side connector. Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition GND (E41-7) - Body ground BR - Body ground Ground Always Below 1 Ω B (E41-4) - GND (E41-7) L-Y - BR Battery Always 11 to 14 V ACC (E41-3) - GND (E41-7) GR -BR ACC power supply Ignition switch OFF Ignition switch ACC Below 1 V 11 to 14 V E130763E01 Standard voltage: (c) (d) HINT: If the results are not as specified, there may be a malfunction in the wire harness. Reconnect the E41 receiver connector. Measure the voltage of the connector. Symbols (Terminal No.) Wiring Color Terminal Description Condition Specification ILL+ (E41-10) - GND (E41-7) G - BR Illumination signal ILL- (E42-5) - GND (E41-7) BR-W - BR Illumination signal Light control switch OFF Light control switch TAIL Light control switch OFF Light control switch TAIL FR+ (E41-1) - GND (E41-7) LG - BR Sound signal (Front right) Audio system is playing FR- (E41-5) - GND (E41-7) L - BR Sound signal (Front right) Audio system is playing FL+ (E41-2) - GND (E41-7) P - BR Sound signal (Front left) Audio system is playing FL- (E41-6) - GND (E41-7) V - BR Sound signal (Front left) Audio system is playing RR+ (E42-1) - GND (E41-7) R - BR Sound signal (Rear right) Audio system is playing RR- (E42-3) - GND (E41-7) W - BR Sound signal (Rear right) Audio system is playing RL+ (E42-2) - GND (E41-7) B - BR Sound signal (Rear left) Audio system is playing RL- (E42-6) - GND (E41-7) Y - BR Sound signal (Rear left) Audio system is playing AMP (E41-9) - GND (E41-7)*1 P-L - BR Woofer speaker signal Woofer speaker switch OFF Woofer speaker switch ON Below 1 V 11 to 14 V Below 1 V 11 to 14 V A waveform synchronized with sound is output A waveform synchronized with sound is output A waveform synchronized with sound is output A waveform synchronized with sound is output A waveform synchronized with sound is output A waveform synchronized with sound is output A waveform synchronized with sound is output A waveform synchronized with sound is output Below 1 V 11 to 14 V

16 16 AUDIO / VISUAL AUDIO AND VISUAL SYSTEM Symbols (Terminal No.) Wiring Color Terminal Description Condition Specification SWG (E43-6) - GND (E41-7) W-R - BR Steering pad switch ground SW1 (E43-7) - GND (E41-7) V-W - BR Steering pad switch signal SW2 (E43-8) - GND (E41-7) Y-B - BR Steering pad switch signal ARI (E43-15) - GND (E41-7) P - BR Sound signal (Right) Always Steering pad switch not operated SEEK+ switch pushed SEEK- switch pushed VOL+ switch pushed VOL- switch pushed Steering pad switch not operated MODE switch pushed ON HOOK switch pushed OFF HOOK switch pushed VOICE switch pushed External device is playing (When stereo jack adapter is used) Below 1 V 4 V or more Approximately 0.5 V Approximately 0.9 V Approximately 2.0 V Approximately 3.4 V 4 V or more Approximately 0.5 V Approximately 0.9 V Approximately 2.0 V Approximately 3.4 V ASGN (E43-16) - GND (E41-7) (Shielded) - BR Ground (Shielded) Always Below 1 V ALI (E43-17) - GND (E41-7) L - BR Sound signal (Left) AUXI (E43-19) - GND (E41-7) P-G - BR External device connection detection signal External device is playing (When stereo jack adapter is used) External device is connected A waveform synchronized with sound is output A waveform synchronized with sound is output Below 1 V *1: w/ Woofer Speaker HINT: If the results are not as specified, there may be a malfunction in the wire harness.

17 AUDIO / VISUAL AUDIO AND VISUAL SYSTEM 17 Noise Occurs INSPECTION PROCEDURE 1 CHECK SPEAKER INSTALLATION (a) Check that each speaker is securely installed. OK: Speakers are installed securely. HINT: The radio has a noise prevention function to reduce noise when listening to the radio. If severe noise occurs, check whether the ground at the antenna mounting base and the noise prevention unit are installed and wired correctly. Condition in Which Noise Occurs Increases when accelerator pedal is depressed, and stops immediately when engine is stopped When A/C or heater is operating When vehicle is rapidly accelerated on unpaved road When ignition switch is ON When horn switch is pressed and released When horn switch is pressed and held down Occurs faintly when engine is running, and stops immediately when engine is stopped When turn signal is operating When window washer is operating When engine is running, and continues even when engine is stopped When wipers are operating When brake pedal is depressed Other than above Noise Type Generator noise Blower motor noise Fuel pump noise Horn noise Ignition noise Flasher noise Washer noise Engine coolant temperature noise Wiper noise Stop light switch noise Static electricity on vehicle HINT: Use the table above to identify the part that is causing the noise. Check the noise filter on the part. To save time and avoid a misdiagnosis, first make sure that the noise is not originating from outside the vehicle. Troubleshoot noise problems in order of loudness, starting with the loudest noise. Setting the radio to a frequency that receives no signal may make recognition of the noise problem easier. NG INSTALL SPEAKER PROPERLY OK IDENTIFY NOISE SOURCE

18 18 AUDIO / VISUAL AUDIO AND VISUAL SYSTEM Pressing Power Switch does not Turn on System INSPECTION PROCEDURE 1 CHECK WHETHER RAPID TEMPERATURE CHANGE OCCURRED IN CABIN (a) Check whether or not a rapid temperature change occurred in the cabin. OK: Rapid temperature change occurred. HINT: Rapid temperature changes create condensation inside the radio receiver, which may cause a short circuit. NG REPLACE RADIO RECEIVER OK PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

19 AUDIO / VISUAL AUDIO AND VISUAL SYSTEM 19 No Sound can be Heard from Speakers INSPECTION PROCEDURE 1 CHECK RADIO RECEIVER (VOLUME AND MUTE SWITCH) (a) Check the radio receiver setting. (1) Check that the volume is not set to minimum. (2) Check that MUTE is OFF. OK: Malfunction disappears. NG PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE OK END

20 20 AUDIO / VISUAL AUDIO AND VISUAL SYSTEM Sound Quality is Bad Only when CD is Played (Volume is Too Low) INSPECTION PROCEDURE 1 OPERATION USING ANOTHER CD (a) Replace the CD with a normal one and check if the same problem occurs again. OK: Malfunction disappears. NG PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE OK CD IS FAULTY

21 AUDIO / VISUAL AUDIO AND VISUAL SYSTEM 21 CD cannot be Ejected INSPECTION PROCEDURE 1 CHECK OPERATION (a) Press the CD EJECT switch of the radio receiver for 2 seconds or more to check whether the CD can be ejected. OK: CD is ejected. NG REPLACE RADIO RECEIVER OK 2 OPERATION USING ANOTHER CD (a) Replace the CD with a normal one and check that the CD can be ejected. OK: CD is ejected. NG REPLACE RADIO RECEIVER OK CD IS FAULTY

22 22 AUDIO / VISUAL AUDIO AND VISUAL SYSTEM CD cannot be Inserted or is Ejected Right After Insertion INSPECTION PROCEDURE 1 CHECK CD (a) Make sure that the CD is a normal audio CD, and that it is not deformed, flawed, stained, burred or otherwise defective. OK: Normal audio CD. HINT: Translucent or uniquely-shaped CDs cannot be played. NG CD IS FAULTY OK 2 CHECK THAT CD HAS BEEN INSERTED PROPERLY (a) Check whether or not the CD was inserted upside down. OK: CD was properly inserted. NG INSERT CD PROPERLY OK 3 CLEAN CD (a) Clean the disc by wiping the CD's dataside radially with a soft cloth. OK: Malfunction disappears. NOTICE: Do not use a conventional record cleaner or antistatic preservative. OK CD WAS DIRTY I NG 4 REPLACE CD (a) Replace the CD with a normal one and check if the same problem occurs again. OK: Malfunction disappears. NG REPLACE RADIO RECEIVER

23 AUDIO / VISUAL AUDIO AND VISUAL SYSTEM 23 OK CD IS FAULTY

24 24 AUDIO / VISUAL AUDIO AND VISUAL SYSTEM CD Sound Skips INSPECTION PROCEDURE HINT: The sound may skip when driving on an unpaved road. 1 CLEAN CD (a) If the disc is dirty, clean the disc by wiping the CD's dataside radially with a soft cloth. OK: Malfunction disappears. NOTICE: Do not use a conventional record cleaner or antistatic preservative. OK CD WAS DIRTY E NG 2 OPERATION USING ANOTHER CD (a) OK Replace the CD with a normal one and check if the same problem occurs again. OK: Malfunction disappears. CD IS FAULTY NG 3 CHECK RADIO RECEIVER INSTALLATION (a) Check the installation condition of the radio receiver. OK: Installed properly. NG INSTALL RADIO RECEIVER PROPERLY OK 4 CHECK WHETHER RAPID TEMPERATURE CHANGE OCCURRED IN CABIN (a) Check whether or not a rapid temperature change occurred in the cabin. OK: Rapid temperature change occurred. HINT: Rapid temperature changes create condensation inside the CD player, which may prevent CDs from being played.

25 AUDIO / VISUAL AUDIO AND VISUAL SYSTEM 25 NG REPLACE RADIO RECEIVER OK CONDENSATION DUE TO TEMPERATURE CHANGE (LET IT SIT FOR A WHILE BEFORE USING)

26 26 AUDIO / VISUAL AUDIO AND VISUAL SYSTEM Radio Broadcast cannot be Received (Bad Reception) INSPECTION PROCEDURE 1 CHECK WHETHER RAPID TEMPERATURE CHANGE OCCURRED IN CABIN (a) Check whether the radio auto-search functions properly. (1) Tune the radio using the auto-search function and check that it operates normally. OK: The radio auto-search functions properly. OK END NG 2 CHECK OPTIONAL COMPONENTS (a) Check whether any optional components, such as telephone antenna, are installed. OK: Optional component(s) installed. OK EFFECT FROM OPTIONAL COMPONENTS NG 3 CHECK ANTENNA FOR NOISE PRODUCTION (a) (b) With the ignition switch ON, turn on the radio and select the AM mode. Place the tip of a screwdriver on the antenna and check that noise is heard from the speakers. OK: Noise occurs. OK REPLACE RADIO RECEIVER NG 4 INSPECT RADIO RECEIVER (ANTENNA) E (a) (b) (c) (d) Remove the antenna plug of the radio receiver. With the radio receiver connector connected, turn the ignition switch on (ACC). Turn on the radio and select the AM mode. Place a flat-head screwdriver or piece of metal, such as a thin wire, on the antenna jack of the radio receiver. Check that noise is heard from the speakers. OK: Noise occurs.

27 AUDIO / VISUAL AUDIO AND VISUAL SYSTEM 27 NG REPLACE ROOF ANTENNA POLE SUB- ASSEMBLY OK REPLACE RADIO RECEIVER

28 28 AUDIO / VISUAL AUDIO AND VISUAL SYSTEM Poor Sound Quality in All Modes (Low Volume) INSPECTION PROCEDURE 1 ADJUST SOUND QUALITY (a) Operate the radio receiver to adjust the sound quality. OK: Sound quality returns to normal. OK SYSTEM IS OK (POOR SOUND QUALITY) NG 2 COMPARE WITH ANOTHER VEHICLE OF SAME MODEL (a) Compare the vehicle with another vehicle that has a normally functioning audio system. Check if there is any difference in the sound quality. OK: No difference is found. OK SYSTEM IS OK (POOR SOUND QUALITY) NG PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

29 AUDIO / VISUAL AUDIO AND VISUAL SYSTEM 29 Steering Pad Switch Circuit DESCRIPTION This circuit sends an operation signal from the steering pad switch to the radio receiver. If there is an open in the circuit, the audio system cannot be operated using the steering pad switch. If there is a short in the circuit, the same condition as that when the switch is continuously depressed occurs. Therefore, the radio receiver cannot be operated using the steering pad switch, and also the radio receiver itself cannot function. WIRING DIAGRAM Spiral Cable Radio Receiver AU1 SW1 EAU SWG AU2 SW2 Steering Pad Switch Volume- Volume+ Seek- Seek+ MODE E130766E01

30 30 AUDIO / VISUAL AUDIO AND VISUAL SYSTEM INSPECTION PROCEDURE NOTICE: The vehicle is equipped with an SRS (Supplemental Restraint System) which includes components such as airbags. Before servicing (including removal or installation of parts), be sure to read the precautionary notice for the Supplemental Restraint System (See page RS-1). 1 INSPECT RADIO RECEIVER Wire Harness Side: (a) (b) Disconnect the E43 radio receiver connector. Measure the resistance. Standard resistance Radio Receiver Connector SWG E43 Front View SW1 OK SW2 E130767E01 (c) Tester connection Condition Specified condition E43-7 (SW1) - E43-6 (SWG) No switches pushed Approximately 100 kω E43-7 (SW1) - E43-6 (SWG) SEEK+ switch pushed Approximately 0 Ω E43-7 (SW1) - E43-6 (SWG) SEEK- switch pushed Approximately 0.3 kω E43-7 (SW1) - E43-6 (SWG) VOL+ switch pushed Approximately 1 kω E43-7 (SW1) - E43-6 (SWG) VOL- switch pushed Approximately 3.2 kω E43-8 (SW2) - E43-6 (SWG) No switches pushed Approximately 100 kω E43-8 (SW2) - E43-6 (SWG) MODE switch pushed Approximately 0 Ω NG Reconnect the radio receiver connector. Go to step 2 PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE 2 INSPECT STEERING PAD SWITCH ASSEMBLY (a) Disconnect the E17 steering pad switch assembly connector.

31 AUDIO / VISUAL AUDIO AND VISUAL SYSTEM 31 Wire Harness Side: Steering Pad Switch Connector E17 Front View EAU AU2 AU1 E130787E01 Standard resistance (b) Measure the resistance. Tester connection Condition Specified condition E17-12 (AU1) - E17-10 (EAU) No switches pushed Approximately 100 kω E17-12 (AU1) - E17-10 (EAU) SEEK+ switch pushed Approximately 0 Ω E17-12 (AU1) - E17-10 (EAU) SEEK- switch pushed Approximately 0.3 kω E17-12 (AU1) - E17-10 (EAU) VOL+ switch pushed Approximately 1 kω E17-12 (AU1) - E17-10 (EAU) VOL- switch pushed Approximately 3.2 kω E17-11 (AU2) - E17-10 (EAU) No switches pushed Approximately 100 kω E17-11 (AU2) - E17-10 (EAU) MODE switch pushed Approximately 0 Ω (c) NG Reconnect the steering pad switch assembly connector. REPLACE STEERING PAD SWITCH ASSEMBLY OK

32 32 AUDIO / VISUAL AUDIO AND VISUAL SYSTEM 3 INSPECT SPIRAL CABLE Spiral Cable Side: EAU AU2 AU1 (a) (b) Disconnect the E17 steering pad switch assembly and spiral cable connectors. Measure the resistance. Standard resistance Tester connection Terminal 10 (EAU) main switch side - EAU (E17-10) Terminal 12 (AU1) main switch side - AU1 (E17-12) Terminal 11 (AU2) main switch side - AU2 (E17-11) Specified condition Below 1 Ω Below 1 Ω Below 1 Ω EAU AU2 Vehicle Side: E17 AU1 B133361E02 (c) (d) NOTICE: The spiral cable is an important part of the SRS airbag system. Incorrect removal or installation of the spiral cable may prevent the airbag from deploying. Be sure to read the page shown in the brackets. HINT: Removal (See page RS-357) Installation (See page RS-358) Reconnect the steering pad switch assembly connector. Reconnect the spiral cable connector. OK NG REPLACE SPIRAL CABLE REPAIR OR REPLACE HARNESS OR CONNECTOR (SPIRAL CABLE - RADIO RECEIVER)

33 AUDIO / VISUAL AUDIO AND VISUAL SYSTEM 33 Illumination Circuit DESCRIPTION Power is supplied to the radio receiver and steering pad switch assembly illumination when the light control switch is in the TAIL or HEAD position. WIRING DIAGRAM Steering Pad Switch Spiral Cable Radio Receiver EAU SWG ILL+ From Battry TAIL TAIL ILL+ To Main Body ECU Light Control Rheostat E - ILL- E130782E01 INSPECTION PROCEDURE NOTICE: The vehicle is equipped with an SRS (Supplemental Restraint System) which includes components such as airbags. Before servicing (including removal or installation of parts), be sure to read the precautionary notice for the supplemental restraint system (See page RS-1).

34 34 AUDIO / VISUAL AUDIO AND VISUAL SYSTEM 1 CHECK ILLUMINATION Result (a) Check if the illumination for the radio receiver, steering pad switch, or others (back sonar switch, hazard switch, etc.) comes on when the light control switch is turned to the HEAD or TAIL position. Result Illumination comes on for all components except steering pad switch. Illumination comes on for all components except radio receiver. No illumination comes on (radio receiver, back sonar switch, hazard switch, etc.). Proceed to A B C B C GO TO LIGHTING SYSTEM Go to step 6 A 2 INSPECT STEERING PAD SWITCH ASSEMBLY Wire Harness Side: (a) (b) Disconnect the steering pad switch assembly connector. Connect the positive (+) lead to terminal ILL+ and the negative (-) lead to terminal EAU of the steering pad switch assembly connector. Steering Pad Switch Connector E17 Front View E130788E01 (c) Check if the illumination for the steering pad switch assembly comes on. OK: Illumination for the steering pad switch assembly comes on. NG REPLACE STEERING PAD SWITCH ASSEMBLY

35 AUDIO / VISUAL AUDIO AND VISUAL SYSTEM 35 OK 3 INSPECT SPIRAL CABLE Spiral Cable Side: ILL+ EAU (a) (b) Disconnect the E17 steering pad switch assembly and spiral cable connectors. Measure the resistance. Standard resistance Tester connection Terminal 10 (EAU) main switch side - EAU (E17-10) Terminal 1 (ILL+) main switch side - ILL+ (E17-1) Specified condition Below 1 Ω Below 1 Ω Vehicle Side: E17 ILL+ EAU B133361E03 (c) (d) NG NOTICE: The spiral cable is an important part of the SRS airbag system. Incorrect removal or installation of the spiral cable may prevent the airbag from deploying. Be sure to read the page shown in the brackets. HINT: Removal (See page RS-357) Installation (See page RS-358) Reconnect the steering pad switch assembly connector. Reconnect the spiral cable connector. REPLACE SPIRAL CABLE OK 4 CHECK HARNESS AND CONNECTOR (BATTERY - SPIRAL CABLE) Wire Harness Side: Spiral Cable Connector (a) (b) Disconnect the E17 spiral cable connector. Measure the voltage. Standard voltage Tester connection Condition Specified condition E17 E17-1 (ILL+) - Body ground Light control SW TAIL or HEAD 11 to 14 V ILL+ Front View E130784E01 (c) NG Reconnect the spiral cable connector. REPAIR OR REPLACE HARNESS OR CONNECTOR OK

36 36 AUDIO / VISUAL AUDIO AND VISUAL SYSTEM 5 CHECK HARNESS AND CONNECTOR (SPIRAL CABLE - RADIO RECEIVER) Wire Harness Side: Spiral Cable Connector (a) (b) (c) Disconnect the E43 receiver connector. Disconnect the E17 spiral cable connector. Measure the resistance. Standard resistance Tester Connection Specified Condition E17 E43-6 (SWG) - E17-10 (SWG) Below 1 Ω E43-6 (SWG) or E17-10 (SWG) - Body ground 10 kω or higher Front View SWG (d) (e) Reconnect the receiver connector. Reconnect the spiral cable connector. Radio Receiver Connector NG REPAIR OR REPLACE HARNESS OR CONNECTOR SWG E43 Front View E130785E01 OK REPLACE RADIO RECEIVER 6 CHECK HARNESS AND CONNECTOR (BATTERY - RADIO RECEIVER) Wire Harness Side: Radio Receiver Connector (a) (b) Disconnect the E41 receiver connector. Measure the voltage. Standard voltage Tester connection Condition Specified condition E Front View ILL+ E106746E13 (c) E41-10 (ILL+) - Body ground NG Light control SW TAIL or HEAD Reconnect the receiver connector. 11 to 14 V REPAIR OR REPLACE HARNESS OR CONNECTOR OK

37 AUDIO / VISUAL AUDIO AND VISUAL SYSTEM 37 7 CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - LIGHT CONTROL RHEOSTAT) Wire Harness Side: Radio Receiver Connector (a) (b) (c) Disconnect the E42 receiver connector. Disconnect the E4 light control rheostat connector. Measure the resistance. Standard resistance 1 2 E Front View ILL- Light Control Rheostat Connector Tester Connection Specified Condition E42-6 (ILL-) - E4-3 (-) Below 1 Ω E42-6 (ILL-) or E4-3 (-) - Body ground 10 kω or higher (d) (e) NG Reconnect the receiver connector. Reconnect the light control rheostat connector. REPAIR OR REPLACE HARNESS OR CONNECTOR E4 - Front View E130786E01 OK RADIO RECEIVER

38 38 AUDIO / VISUAL AUDIO AND VISUAL SYSTEM Speaker Circuit DESCRIPTION Sound signals that have been amplified by the stereo component amplifier are sent to the speakers from the radio receiver through this circuit. If there is a short in this circuit, the sound cannot be heard from the speakers even though there is no malfunction in the speakers. WIRING DIAGRAM Radio Receiver Front No. 1 Speaker (LH) FL+ FR- FL- FR+ Front No. 1 Speaker (RH) Front No. 2 Speaker (LH) Front No. 2 Speaker (RH) E130769E01

39 AUDIO / VISUAL AUDIO AND VISUAL SYSTEM 39 Radio Receiver Rear Speaker (LH) Rear Speaker (RH) Condenser Roof Speaker (LH) LO+ LI+ Roof Speaker (RH) RO+ RI- LO- RO- RI+ RL+ RL- RR+ RR- LI- Woofer Speaker*1 *1 *1 *1 *1 *1: w/ Woofer Speaker E130770E01 INSPECTION PROCEDURE 1 CHECK SPEAKER Result Result Front No. 1 speakers have problems Front No. 2 speakers have problems Rear speakers have problems Woofer speaker has problems (w/ woofer speaker) Roof speakers have problems (a) Check whether sound is emitted from each speaker. Proceed to A B C D E

40 40 AUDIO / VISUAL AUDIO AND VISUAL SYSTEM B C D E Go to step 4 Go to step 6 Go to step 8 Go to step 10 A 2 INSPECT FRONT NO. 1 SPEAKERS (a) Check the left and right front No. 1 speakers (See page -58). OK: Front No. 1 speakers are normal. NG REPLACE FRONT NO. 1 SPEAKER OK 3 CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - FRONT NO. 1 SPEAKER) Wire Harness Side: E41 FR+ FR- FL- H4 G4 *1: LH *2: RH Radio Receiver Connector *1 *2 Front View FL+ Front No. 1 Speaker Connector Front View (a) (b) (c) (d) (e) NG Disconnect the E41 receiver connector. Disconnect the G4 and H4 front No. 1 speaker connectors. Measure the resistance. Standard resistance Tester Connection Specified Condition E41-2 (FL+) - H4-1 Below 1 Ω E41-6 (FL-) - H4-2 Below 1 Ω E41-2 (FL+) or H4-1 - Body ground 10 kω or higher E41-6 (FL-) or H4-2 - Body ground 10 kω or higher E41-1 (FR+) - G4-1 Below 1 Ω E41-5 (FR-) - G4-2 Below 1 Ω E41-1 (FR+) or G4-1 - Body ground 10 kω or higher E41-5 (FR-) or G4-2 - Body ground 10 kω or higher Reconnect the receiver connector. Reconnect the front No. 1 speaker connectors. REPAIR OR REPLACE HARNESS OR CONNECTOR I044961E09 OK PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

41 AUDIO / VISUAL AUDIO AND VISUAL SYSTEM 41 4 INSPECT FRONT NO. 2 SPEAKERS (a) Check the left and right front No. 2 speakers (See page -61). OK: Front No. 2 speakers are normal. NG REPLACE FRONT NO. 2 SPEAKER OK 5 CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - FRONT NO. 2 SPEAKER) Wire Harness Side: Radio Receiver Connector (a) (b) (c) Disconnect the E41 receiver connector. Disconnect the F3 and F4 front No. 2 speaker connectors. Measure the resistance. Standard resistance E41 Tester Connection Specified Condition FR+ E41-2 (FL+) - F4-4 Below 1 Ω E41-6 (FL-) - F4-3 Below 1 Ω FR- FL- Front View FL+ E41-2 (FL+) or F4-4 - Body ground 10 kω or higher E41-6 (FL-) or F4-3 - Body ground 10 kω or higher E41-1 (FR+) - F3-4 Below 1 Ω Front No. 2 Speaker Connector F4 F3 *1: LH *2: RH *1 *2 Front View (d) (e) E41-5 (FR-) - F3-3 Below 1 Ω E41-1 (FR+) or F3-4 - Body ground 10 kω or higher E41-5 (FR-) or F3-3 - Body ground 10 kω or higher NG Reconnect the receiver connector. Reconnect the front No. 2 speaker connectors. REPAIR OR REPLACE HARNESS OR CONNECTOR E130777E01 OK PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE 6 INSPECT REAR SPEAKERS (a) Check the left and right rear speakers (See page -69). OK: Rear speakers are normal. NG REPLACE REAR SPEAKER OK

42 42 AUDIO / VISUAL AUDIO AND VISUAL SYSTEM 7 CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - REAR SPEAKER) Wire Harness Side: RR+ E42 *1: LH *2: RH Radio Receiver Connector L9 L18 *1 * Front View Rear Speaker Connector Front View RL+ RR- RL- (a) (b) (c) (d) (e) NG Disconnect the E42 receiver connector. Disconnect the L9 and L18 rear speaker connectors. Measure the resistance. Standard resistance Tester Connection Specified Condition E42-2 (RL+) - L9-1 Below 1 Ω E42-6 (RL-) - L9-2 Below 1 Ω E42-2 (RL+) or L9-1 - Body ground 10 kω or higher E42-6 (RL-) or L9-2 - Body ground 10 kω or higher E42-1 (RR+) - L18-1 Below 1 Ω E42-3 (RR-) - L18-2 Below 1 Ω E42-1 (RR+) or L Body ground 10 kω or higher E42-3 (RR-) or L Body ground 10 kω or higher Reconnect the receiver connector. Reconnect the rear speaker connectors. REPAIR OR REPLACE HARNESS OR CONNECTOR E130778E01 OK PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE 8 INSPECT WOOFER SPEAKER (a) Check the woofer speaker. OK: Woofer speaker is normal. NG REPLACE WOOFER SPEAKER OK

43 AUDIO / VISUAL AUDIO AND VISUAL SYSTEM 43 9 CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - WOOFER SPEAKER) Wire Harness Side: Radio Receiver Connector RR+ RL+ E RR- RL- Front View Woofer Speaker Connector L+ R+ K4 (a) (b) (c) Disconnect the E42 receiver connector. Disconnect the K4 woofer speaker connector. Measure the resistance. Standard resistance Tester Connection Specified Condition E42-2 (RL+) - K4-2 (L+) Below 1 Ω E42-6 (RL-) - K4-6 (L-) Below 1 Ω E42-2 (RL+) ork4-2 (L+) - Body ground 10 kω or higher E42-6 (RL-) or K4-6 (L-) - Body ground 10 kω or higher E42-1 (RR+) - K4-1 (R+) Below 1 Ω E42-3 (RR-) - K4-5 (R-) Below 1 Ω E42-1 (RR+) or K4-1 (R+) - Body ground 10 kω or higher E42-3 (RR-) or K4-5 (R-) - Body ground 10 kω or higher L- Front View R- (d) (e) Reconnect the receiver connector. Reconnect the woofer speaker connector. E130779E01 NG REPAIR OR REPLACE HARNESS OR CONNECTOR OK PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE 10 INSPECT ROOF SPEAKERS (a) Check the left and right roof speakers (See page -82). OK: Roof speakers are normal. NG REPLACE ROOF SPEAKER OK

44 44 AUDIO / VISUAL AUDIO AND VISUAL SYSTEM 11 CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - CONDENSER) Front View (a) (b) (c) (d) (e) Disconnect the E42 receiver connector. Disconnect the E27 condenser connector. Measure the resistance. Standard resistance Tester Connection Specified Condition E42-2 (RL+) - E27-2 (LI+) Below 1 Ω E42-6 (RL-) - E27-1 (LI-) Below 1 Ω E42-2 (RL+) or E27-2 (LI+) - Body ground 10 kω or higher E42-6 (RL-) or E27-1 (LI-) - Body ground 10 kω or higher E42-1 (RR+) - E27-4 (RI+) Below 1 Ω E42-3 (RR-) - E27-3 (RI-) Below 1 Ω E42-1 (RR+) or E27-4 (RI+) - Body ground 10 kω or higher E42-3 (RR-) or E27-3 (RI-) - Body ground 10 kω or higher Reconnect the receiver connector. Reconnect the condenser connector. E130789E01 NG REPAIR OR REPLACE HARNESS OR CONNECTOR OK 12 CHECK HARNESS AND CONNECTOR (CONDENSER - ROOF SPEAKER) Wire Harness Side: Condenser Connector (a) (b) (c) Disconnect the E42 receiver connector. Disconnect the E27 condenser connector. Measure the resistance. Standard resistance LO+ R4 R5 *1: LH *2: RH E27 *1 * Roof Speaker Connector 4 8 Front View Front View RO+ Wire Harness Side: RR+ Radio Receiver Connector RL+ E RR- Front View RL- Condenser Connector LI+ LI- E27 RI- RI+ LO- RO- Tester Connection Specified Condition E27-2 (LO+) - R4-1 Below 1 Ω E27-5 (LO-) - R4-2 Below 1 Ω E27-2 (LO+) or R4-1 - Body ground 10 kω or higher E27-5 (LO-) or R4-2 - Body ground 10 kω or higher E27-8 (RO+) - R5-1 Below 1 Ω E27-7 (RO-) - R5-2 Below 1 Ω E27-8 (RO+) or R5-1 - Body ground 10 kω or higher E27-7 (RO-) or R5-2 - Body ground 10 kω or higher (d) (e) NG Reconnect the receiver connector. Reconnect the condenser connector. REPAIR OR REPLACE HARNESS OR CONNECTOR E130790E02

45 AUDIO / VISUAL AUDIO AND VISUAL SYSTEM 45 OK 13 REPLACE CONDENSER (a) (b) Temporarily replace the condenser with a new or normally functioning one. Check that the sound is normal. OK: Sound is normal. NG END OK PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

46 46 AUDIO / VISUAL AUDIO AND VISUAL SYSTEM Sound Signal Circuit between Radio Receiver and Stereo Jack Adapter DESCRIPTION The stereo jack adapter sends an external device sound signal to the radio receiver through this circuit. The sound signal that has been sent is amplified by the stereo component amplifier, and then is sent to the speakers. If there is an open or short in the circuit, sound cannot be heard from the speakers even if there is no malfunction in the stereo component amplifier, radio receiver, or speakers. WIRING DIAGRAM Stereo Jack Adapter Noise Filter Radio Receiver AUXO AUXI (Shielded) (Shielded) ALO ALI ALO ALI ARO ARI ARO ARI ASGN ASG1 ASGO ASGN E130771E01

47 AUDIO / VISUAL AUDIO AND VISUAL SYSTEM 47 INSPECTION PROCEDURE 1 CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - NOISE FILTER) Wire Harness Side: Noise Filter Connector (a) (b) Disconnect the E71 noise filter and E43 radio receiver connectors. Measure the resistance. Standard resistance ASGO E ARO AUXO Front View ALO Radio Receiver Connector ASGN ALI E43 Tester connection Specified condition E71-5 (AUXO) - E43-19 (AUXI) Below 1 Ω E71-8 (ALO) - E43-17 (ALI) Below 1 Ω E71-7 (ARO) - E43-15 (ARI) Below 1 Ω E71-6 (ASGO) - E43-16 (ASGN) Below 1 Ω E71-5 (AUXO) or E43-19 (AUXI) - Body ground 10 kω or higher E71-8 (ALO) or E43-17 (ALI) - Body ground 10 kω or higher E71-7 (ARO) or E43-15 (ARI) - Body ground 10 kω or higher E71-6 (ASGO) or E43-16 (ASGN) - Body ground 10 kω or higher ARI Front View AUXI (c) (d) Reconnect the noise filter connector. Reconnect the radio receiver connector. E130791E01 MG REPAIR OR REPLACE HARNESS OR CONNECTOR OK 2 CHECK HARNESS AND CONNECTOR (NOISE FILTER - STEREO JACK ADAPTER) Wire Harness Side: Stereo Jack Adapter Connector (a) (b) Disconnect the E26 stereo jack adapter and E71 noise filter connectors. Measure the resistance. Standard resistance ALO ASGN E26 Front View ARO Noise Filter Connector ALI ASG1 E ARI Front View Tester connection Specified condition E26-1 (ALO) - E71-1 (ALI) Below 1 Ω E26-2 (ARO) - E71-2 (ARI) Below 1 Ω E26-3 (ASGN) - E71-3 (ASG1) Below 1 Ω E26-1 (ALO) or E71-1 (ALI) - Body ground 10 kω or higher E26-2 (ARO) or E71-2 (ARI) - Body ground 10 kω or higher E26-3 (ASGN) or E71-3 (ASG1) - Body ground 10 kω or higher (c) (d) NG Reconnect the stereo jack adapter connector. Reconnect the noise filter connector. REPAIR OR REPLACE HARNESS OR CONNECTOR E130792E01

48 48 AUDIO / VISUAL AUDIO AND VISUAL SYSTEM OK PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

49 AUDIO / VISUAL AUDIO AND VISUAL SYSTEM 49 Woofer Speaker Switch Circuit DESCRIPTION This is the circuit between the radio receiver and the woofer speaker. When the woofer speaker switch is turned ON and OFF, the woofer speaker is activated and deactivated through control of the signals between the receiver and the woofer speaker. If there is an open or short in the circuit, sound cannot be heard from the woofer speaker even if there is no malfunction in the radio receiver or woofer speaker. WIRING DIAGRAM Woofer Speaker Radio Receiver Woofer Speaker Switch AMP+ AMP E130774E01 INSPECTION PROCEDURE 1 INSPECT WOOFER SPEAKER SWITCH (a) Check the woofer speaker switch (See page -127). OK: Woofer speaker switch is normal. NG REPLACE WOOFER SPEAKER SWITCH OK

50 50 AUDIO / VISUAL AUDIO AND VISUAL SYSTEM 2 CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - WOOFER SPEAKER SWITCH) Wire Harness Side: Woofer Speaker Switch Connector (a) (b) (c) Disconnect the E41 receiver connector. Disconnect the E5 woofer speaker switch connector. Measure the resistance. Standard resistance E5 Front View Tester Connection Specified Condition E41-9 (AMP) - E5-3 Below 1 Ω E41-9 (AMP) or E5-3 - Body ground 10 kω or higher (d) (e) NG Reconnect the receiver connector. Reconnect the woofer speaker switch connector. REPAIR OR REPLACE HARNESS OR CONNECTOR Radio Receiver Connector E41 Front View AMP E130775E01 OK 3 CHECK HARNESS AND CONNECTOR (WOOFER SPEAKER - WOOFER SPEAKER SWITCH) Wire Harness Side: Woofer Speaker Switch Connector (a) (b) (c) Disconnect the K4 woofer speaker connector. Disconnect the E5 woofer speaker switch connector. Measure the resistance. Standard resistance E5 Front View Woofer Speaker Connector Tester Connection Specified Condition K4-9 (AMP+) - E5-4 Below 1 Ω K4-9 (AMP+) or E5-4 - Body ground 10 kω or higher (d) (e) NG Reconnect the woofer speaker connector. Reconnect the woofer speaker switch connector. REPAIR OR REPLACE HARNESS OR CONNECTOR AMP+ K4 Front View E130776E01

51 AUDIO / VISUAL AUDIO AND VISUAL SYSTEM 51 OK PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

52 52 AUDIO / VISUAL AUDIO AND VISUAL SYSTEM Radio Receiver Power Source Circuit DESCRIPTION This circuit provides power to the radio receiver. WIRING DIAGRAM Radio Receiver Ignition Switch AM1 ACC ACC ACC AM1 B ALT RADIO NO. 1 GND Battery E130781E01 INSPECTION PROCEDURE 1 INSPECT FUSE (ACC, AM1, RADIO NO. 1) (a) (b) Remove the ACC fuse from the main body ECU. Remove the AM1 fuse and RADIO NO. 1 fuse from the engine room R/B.

53 AUDIO / VISUAL AUDIO AND VISUAL SYSTEM 53 (c) (d) Measure the resistance of the fuses. Standard resistance: Below 1 Ω Reinstall the fuses. NG REPLACE FUSE OK 2 CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - BATTERY AND BODY GROUND) Wire Harness Side: Radio Receiver Connector E ACC B (a) (b) Disconnect the E41 receiver connector. Measure the voltage. Standard voltage Tester Connection Condition Specified Condition E41-4 (B) - Body ground Always 11 to 14 V E41-3 (ACC) - Body ground Ignition switch ACC 11 to 14 V GND Front View E106746E12 (c) Measure the resistance. Standard resistance Tester Connection Specified Condition E41-7 (GND) - Body ground Below 1 Ω (d) Reconnect the receiver connector. OK NG REPAIR OR REPLACE HARNESS OR CONNECTOR PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

54 54 AUDIO / VISUAL AUDIO AND VISUAL SYSTEM Woofer Speaker Power Source Circuit DESCRIPTION This circuit provides power to the woofer speaker. WIRING DIAGRAM Woofer Speaker Ignition Switch AM1 ACC ACC ACC AM1 +B ALT RADIO NO. 2 GND Battery E130781E02 INSPECTION PROCEDURE 1 INSPECT FUSE (ACC, AM1, RADIO NO. 2) (a) (b) Remove the ACC fuse from the main body ECU. Remove the AM1 fuse and RADIO NO. 2 fuse from the engine room R/B.

55 AUDIO / VISUAL AUDIO AND VISUAL SYSTEM 55 (c) (d) Measure the resistance of the fuses. Standard resistance: Below 1 Ω Reinstall the fuses. NG REPLACE FUSE OK 2 CHECK HARNESS AND CONNECTOR (WOOFER SPEAKER - BATTERY AND BODY GROUND) Wire Harness Side: Woofer Speaker Connector ACC +B K4 Front View E130761E01 (a) (b) (c) Disconnect the K4 woofer speaker connector. Measure the voltage. Standard voltage Tester Connection Condition Specified Condition K4-4 (+B) - Body ground Always 11 to 14 V K4-3 (ACC) - Body ground Ignition switch ACC 11 to 14 V Measure the resistance. Standard resistance Tester Connection Specified Condition K4-7 (GND) - Body ground Below 1 Ω (d) Reconnect the woofer speaker connector. OK NG REPAIR OR REPLACE HARNESS OR CONNECTOR PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

56 RADIO RECEIVER BODY AUDIO ELECTRICAL / VISUAL COMPONENTS AUDIO / VISUAL RADIO RECEIVER 53 HEAD UNIT CONNECTOR RADIO CONNECTOR PLUG RADIO RECEIVER ASSEMBLY AIR CONDITIONER AMPLIFIER CONNECTOR BLOWER SWITCH CONNECTOR x4 2.5 (25, 22 in.*lbf) INSTRUMENT PANEL GARNISH RH x2 INTEGRATION CONTROL PANEL ASSEMBLY INSTRUMENT PANEL GARNISH LH N*m (kgf*cm, ft*lbf) : Specified torque B130573E01

57 54 AUDIO / VISUAL RADIO RECEIVER x4 2.5 (25, 22 in.*lbf) x4 2.5 (25, 22 in.*lbf) RADIO BRACKET RH RADIO BRACKET LH N*m (kgf*cm, ft*lbf) : Specified torque B130574E01

58 AUDIO / VISUAL RADIO RECEIVER 55 REMOVAL 1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 2. REMOVE INSTRUMENT PANEL GARNISH RH (See page IP-10) 3. REMOVE INSTRUMENT PANEL GARNISH LH (See page IR-18) 4. REMOVE INTEGRATION CONTROL PANEL ASSEMBLY (See page SB-2) 5. REMOVE RADIO RECEIVER ASSEMBLY (a) Remove the 4 bolts and the radio receiver. B (b) Disconnect the plug, the head unit connector and the 2 radio connectors. B DISASSEMBLY 1. REMOVE RADIO BRACKET RH (a) Remove the 4 screws and the radio bracket. 2. REMOVE RADIO BRACKET LH HINT: Use the same procedure as for the RH side. B130577

59 56 AUDIO / VISUAL RADIO RECEIVER REASSEMBLY 1. INSTALL RADIO BRACKET RH (a) Align the 4 bosses of the radio bracket with the hole in the radio receiver and install the radio bracket with the 4 screws. Torque: 2.5 N*m (25 kgf*cm, 22 in.*lbf) 2. INSTALL RADIO BRACKET LH HINT: Use the same procedure as for the RH side. B INSTALLATION 1. INSTALL RADIO RECEIVER ASSEMBLY (a) Connect the plug, the head unit connector and the 2 radio connectors. B B (b) Align the 2 bosses of the radio bracket with the hole in the instrument panel and install the radio receiver with the 4 bolts. Torque: 2.5 N*m (25 kgf*cm, 22 in.*lbf) 2. INSTALL INTEGRATION CONTROL PANEL ASSEMBLY (See page SB-3) 3. INSTALL INSTRUMENT PANEL GARNISH RH (See page IP-33) 4. INSTALL INSTRUMENT PANEL GARNISH LH (See page IP-33) 5. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL Torque: 3.9 N*m (40 kgf*cm, 35 in.*lbf)