ILLUMINATION CIRCUIT CIRCUIT DESCRIPTION WIRING DIAGRAM

Transcription

1 0804 DINOSTIS UDIO SYSTEM 0HY0 ILLUMINTION IRUIT IRUIT DESRIPTION When the light control switch is turned to TIL or HED position, the TLP relay activates and power is supplied to the radio receiver assy and the multidisplay panel illumination. The body EU determines the surrounding illumination intensity according to the illumination intensity detected by the automatic light control sensor and activates the TLP relay, allowing power to be supplied to the radio receiver assy and the multi display panel illumination. Illumination intensity adjustment for the radio receiver assy and multidisplay panel illumination is performed with the rheostat switch. If a problem exists in the automatic light control sensor, DT 244 is output. WIRIN DIRM Driver Side J/ Radio Receiver ssy W TLP Relay PNEL 8 M To ody EU J9 J/ 2 0 R6 R3 (*) (*2) From Power Source ontrol EU Rheostat Switch E R Engine Room R/ and J/ 3D 6 D/D 2 F FL lock MIN enter onnector No.2 4 M M 3M E E 4 E L J2 J/ 2 R6 R4 (*) (*2) M3 2 M3 Multidisplay attery IH *: Separate Type mplifier *2: uiltin Type mplifier I Prius Preliminary Release (RM07U) uthor : 968

2 DINOSTIS UDIO SYSTEM 080 INSPETION PROEDURE HEK ONDITION heck all components with illumination malfunctions. omponents with malfunction Radio receiver assy or/and multidisplay ll illumination (Radio receiver assy, multidisplay combination meter and hazard warning switch) If all the illuminations have malfunctions, check the rheostat switch. o to step O TO OMINTION METER SYSTEM (SEE PE 0983) 2 HEK HRNESS ND ONNETOR (OMPONENTS WITH MLFUNTION TTERY) Separate Type mplifier uiltin Type mplifier R6 R3 RDIO REEIVER SSY () Disconnect the radio receiver assy R6 or R3 connector. (2) Measure the voltage according to the values in the (R62) ody ground * (R30) ody ground *2 *: Separate Type mplifier *2: uiltin Type mplifier Light control switch TIL or HED Light control switch TIL or HED 0 to 4 V 0 to 4 V I36933 I36949 I Prius Preliminary Release (RM07U) uthor : 969

3 0806 DINOSTIS UDIO SYSTEM Multidisplay M3 MULTIDISPLY () Disconnect the multidisplay M3 connector. (2) Measure the voltage according to the values in the (M3) ody ground Light control switch TIL or HED 0 to 4 V I3988 N REPIR OR REPLE HRNESS OR ONNETOR 3 HEK HRNESS ND ONNETOR (OMPONENTS WITH MLFUNTION RHEOST SWITH) Separate Type mplifier R6 RDIO REEIVER SSY () Disconnect the radio receiver assy R4 or R6 connector and rheostat switch connector. (2) Measure the resistance according to the values in the uiltin Type mplifier (R62) (6) * lways elow Ω (R4) (6) *2 *: Separate Type mplifier *2: uiltin Type mplifier lways elow Ω R4 I36933 I3690 I4027 Light ontrol Rheostat Wire I Prius Preliminary Release (RM07U) uthor : 970

4 DINOSTIS UDIO SYSTEM 0807 Multidisplay M3 I3988 MULTIDISPLY () Disconnect the rheostat switch connector. (2) Measure the resistance according to the values in the (M32) (6) lways elow Ω Light ontrol Rheostat Wire I4023 N REPIR OR REPLE HRNESS OR ONNETOR 4 HEK HRNESS ND ONNETOR (RHEOSTT SWITH ODY ROUND) Light ontrol Rheostat Wire Measure the resistance according to the values in the E () ody ground lways elow Ω E I4023 N REPIR OR REPLE HRNESS OR ONNETOR (RHEOSTT SWITH ODY ROUND) 2004 Prius Preliminary Release (RM07U) uthor : 97

5 0808 DINOSTIS UDIO SYSTEM INSPET LIHT ONTROL RHEOSTT Light ontrol Rheostat onnector Front View: ND I40070 Reconnect the connectors. Measure the voltage according to the values in the table below. (6) ody ground Light control rheostat is turned volume up volume down Waveform : Inspection using oscilloscope. Item Tool setting Vehicle condition Pulse generation (see waveform ) ondition 2 V/DIV, ms/did Light control switch TIL or HED Duty ratio changes as illumination becomes darker ( becomes longer). I3770 N REPLE LIHT ONTROL RHEOSTT PROEED TO NEXT IRUIT INSPETION SHOWN IN PROLEM SYMPTOMS TLE (SEE PE 0778) 2004 Prius Preliminary Release (RM07U) uthor : 972