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1 Page 1 of 6 Pinpoint Test K: The Satellite Radio Is Inoperative/Does t Operate Correctly Vehicles Without Navigation rmal Operation Vehicles Without Navigation Reception can be affected by obstructions to the antenna line-of-sight, such as tall buildings, bridges, driving under an overpass, or being parked in a garage. This is considered normal operation. Make sure the vehicle is in an open area, free of obstacles, before testing the reception. Vehicles Without A Family Entertainment System The satellite radio antenna receives digital signals and sends them to the Satellite Digital Audio Receiver System (SDARS) module, where they are converted and sent to the Rear Control Unit (RCU). The Rear Control Unit (RCU) sends the signals to the ACM. Vehicles With A Family Entertainment System The satellite radio antenna receives digital signals and sends them to the Satellite Digital Audio Receiver System (SDARS) module, where they are converted and sent to the Rear Entertainment Module (RETM). The Rear Entertainment Module (RETM) sends the signals to the Audio Front Control Module (ACM). Vehicles With SYNC The satellite radio antenna receives digital signals and sends them to the Satellite Digital Audio Receiver System (SDARS) module, where they are converted and sent to the APIM. The APIM sends the signals to the Rear Control Unit (RCU) (vehicles without a family entertainment system) or Rear Entertainment Module (RETM) (vehicles with a family entertainment system), and are then routed to the Audio Front Control Module (ACM). DTC Description B1031 SDARS Satellite Antenna Open B1032 SDARS Satellite Antenna Short B1A89:01 Satellite Antenna: General Electrical Failure B1A89:13 Satellite Antenna: Circuit Open Fault Trigger Conditions Set by the SDARS module when an open or high resistance is detected in the satellite antenna circuit. This DTC can be either continuous or on-demand, and applies to vehicles without navigation only. Set by the SDARS module when a short to ground or short to voltage is detected in the satellite antenna circuit. This DTC can be either continuous or on-demand, and applies to vehicles without navigation only. Set by the ACM when any fault is detected in the satellite radio antenna circuit. This DTC can be either continuous or on-demand, and applies to vehicles with navigation only. Set by the ACM when an open is detected in the satellite antenna circuit. This DTC can be either continuous or on-demand, and applies to vehicles with navigation only. This pinpoint test is intended to diagnose the following: Obstructions to the antenna line of sight Expired subscription channel found in the selected category Satellite radio antenna Satellite radio antenna cable Wiring, terminals or connectors SDARS module ACM Rear Control Unit (RCU) Rear Entertainment Module (RETM) APIM PINPOINT TEST K : THE SATELLITE RADIO IS INOPERATIVE/DOES NOT OPERATE CORRECTLY VEHICLES WITHOUT NAVIGATION NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector. K1 VERIFY AN ACTIVE SUBSCRIPTION Operate the audio system in satellite radio mode and observe the audio system display. Does the display indicate the subscription has expired? The subscription has expired. INFORM the customer to contact Sirius to re-activate the subscription. GO to K2. K2 CHECK THE RECEPTION AND CATEGORY FILTER SETTING Turn the category filter function off. For additional information, refer to the Owner's Literature. Drive the vehicle to an open location, free of obstacles. Scan for a good channel. Does the satellite radio system find a good channel with normal reception? The system is operating correctly at this time. The concern was a result of no channel being found in the selected category or obstructions to the antenna line of sight. GO to K3. K3 CHECK THE SATELLITE SIGNAL PID Enter the following diagnostic mode on the scan tool: ACM DataLogger (Vehicles With Navigation) or SDARS Module DataLogger (Vehicles Without Navigation). For vehicles without navigation, monitor the SDARS module PID (SATELTE). For vehicles with navigation, monitor the ACM PID (SAT_SIG_STR). Does the PID indicate " Signal"? GO to K4.

2 Page 2 of 6 For vehicles without navigation, GO to K6. For vehicles with navigation, GO to Pinpoint Test M. K4 CHECK THE SATELLITE RADIO ANTENNA CABLE RESISTANCE Disconnect: Satellite Radio Antenna Connection At SDARS Module or ACM. Disconnect: Satellite Radio Antenna Cable In-Line Connection At RH Kick Panel. Disconnect: Satellite Radio Antenna Connection At Satellite Radio Antenna. Measure the resistance of the rear satellite radio antenna cable core between the satellite radio antenna and the satellite radio antenna in-line connection; and between the rear satellite radio antenna cable core and shield. Measure the resistance of the front satellite radio antenna cable core between the SDARS module (vehicles without navigation) or the ACM (vehicles with navigation) and the satellite radio antenna in-line connection; and between the front satellite radio antenna cable core and shield. Is the resistance of each satellite radio antenna cable core less than 1 ohm, and the resistance between the core and shield of each satellite radio antenna cable greater than 10,000 ohms? GO to K5. INSTALL a new front or rear satellite radio antenna cable, as necessary. REFER to Antenna Cable Satellite Radio in this section. CLEAR any DTCs present. TEST the system for normal operation. K5 ISOLATE THE SATELLITE RADIO ANTENNA Install a new satellite radio antenna. Refer to Antenna Satellite Radio in this section. Operate the audio system in satellite radio mode. Is the reception OK? The concern was caused by an inoperative satellite radio antenna. The system is operating correctly at this time. For vehicles without navigation, GO to K16. For vehicles with navigation, GO to K20. K6 DETERMINE THE VEHICLE CONTENT Determine if the vehicle is equipped with the SYNC system. Is the vehicle equipped with the SYNC system? GO to K7. GO to K10. K7 CHECK THE SYNC SYSTEM AUDIO Connect: Multi-Media Interface Tester. Using the Multi-Media Interface Tester, test the audio output for the audio input jack, USB port, and Bluetooth connection. Do the SYNC system audio sources operate correctly? GO to K8. GO to K12. K8 CHECK THE AUDIO CIRCUITS TO THE APIM FOR A SHORT TO VOLTAGE Disconnect: SDARS Module C3290. Disconnect: APIM C3342. Ignition ON. Measure the voltage between the SDARS module, harness side and ground as follows: Positive Meter Lead Negative Meter Lead C VME41 (GN/OG) C RME41 (BU/BN) C VME42 (VT/BN) C RME42 (YE/BU) Is any voltage present? REPAIR the circuit in question. TEST the system for normal operation.

3 Page 3 of 6 GO to K9. K9 CHECK THE AUDIO CIRCUITS TO THE APIM FOR AN OPEN OR SHORT TO GROUND Measure the resistance between the SDARS module, harness side and the APIM, harness side; and between the SDARS module, harness side and ground as follows: C C , then ground VME41 (GN/OG) C C , then ground RME41 (BU/BN) C C3342-7, then ground VME42 (VT/BN) C C3342-8, then ground RME42 (YE/BU) Is the resistance less than 5 ohms between the SDARS module and the APIM, and greater than 10,000 ohms between the SDARS module and ground? GO to K10. REPAIR the circuit in question. TEST the system for normal operation. K10 CHECK THE AUDIO CIRCUITS TO THE AUDIO RCU MODULE (OR RETM ) FOR A SHORT TO VOLTAGE Disconnect: SDARS Module C3290 (If Connected). Disconnect: Audio RCU Module C3077 or RETM C949. Ignition ON. Measure the voltage between the audio RCU module (or RETM ), harness side and ground as follows: Positive Meter Lead Negative Meter Lead C or C949-5 VME41 (GN/OG) or VME52 (BU) C or C949-6 RME41 (BU/BN) or RME52 (GY/OG) C or C VME42 (VT/BN) or VME53 (VT/GN) C or C RME42 (YE/BU) or RME53 (BN/WH) Is any voltage present? REPAIR the circuit in question. TEST the system for normal operation. GO to K11. K11 CHECK THE AUDIO CIRCUITS TO THE AUDIO RCU MODULE (OR RETM ) FOR AN OPEN OR SHORT TO GROUND For vehicles without the SYNC system, measure the resistance between the audio RCU module (or RETM ), harness side and the SDARS module, harness side; and between the audio RCU module (or RETM ), harness side and ground as follows: C or C949-5 C3290-5, then ground VME41 (GN/OG) or VME52 (BU) C or C949-6 C , then ground RME41 (BU/BN) or RME52 (GY/OG) C or C C3290-6, then ground VME42 (VT/BN) or VME53 (VT/GN) C or C C , then ground RME42 (YE/BU) or RME53 (BN/WH)

4 Page 4 of 6 For vehicles with the SYNC system, measure the resistance between the audio RCU module (or RETM ), harness side and the APIM, harness side; and between the audio RCU module (or RETM ), harness side and ground as follows: C or C949-5 C , then ground VME52 (BU) C or C949-6 C , then ground RME52 (GY/OG) C or C C , then ground VME53 (VT/GN) C or C C , then ground RME53 (BN/WH) Are the resistances less than 5 ohms between components, and greater than 10,000 ohms between each component and ground? GO to K11. REPAIR the circuit in question. TEST the system for normal operation. K12 CHECK THE AUDIO CIRCUITS TO THE ACM FOR A SHORT TO VOLTAGE Disconnect: ACM C240C. Disconnect: Audio RCU Module C3077 (If Equipped) or RETM C949 (If Equipped). Ignition ON. Measure the voltage between the ACM, harness side and ground as follows: C240C-1 Ground VME17 (GN) C240C-2 Ground RME17 (GY) C240C-9 Ground VME18 (VT) C240C-10 Ground RME18 (YE) Is any voltage present? REPAIR the circuit in question. TEST the system for normal operation. GO to K13. K13 CHECK THE AUDIO CIRCUITS TO THE ACM FOR AN OPEN OR SHORT TO GROUND Measure the resistance between the ACM, harness side and the audio RCU module (or RETM ), harness side; and between the ACM, harness side and ground as follows: C240C-1 C or C949-10, then ground VME17 (GN) C240C-2 C or C949-9, then ground RME17 (GY) C240C-9 C or C949-26, then ground VME18 (VT) C240C-10 C or C949-25, then ground RME18 (YE)

5 Page 5 of 6 Is the resistance less than 5 ohms between the ACM and the audio RCU module (or RETM ), and greater than 10,000 ohms between the ACM and ground? If the vehicle is equipped with the SYNC system, GO to K14. Otherwise, GO to K15. REPAIR the circuit in question. TEST the system for normal operation. K14 ISOLATE THE APIM Connect: SDARS Module C3290. Connect: ACM C240C. Connect: Audio RCU Module C3077 (If Equipped) or RETM C949 (If Equipped). Connect fused jumper wires between the APIM pins as follows: APIM Connector-Pin/Circuit C VME42 (VT/BN) C RME42 (YE/BU) C VME41 (GN/OG) C RME41 (BU/BN) APIM Connector-Pin/Circuit C VME53 (VT/GN) C RME53 (BN/WH) C VME52 (BU) C RME52 (GY/OG) Operate the audio system in satellite radio mode. Does the satellite radio audio operate correctly? REMOVE the jumper wires. GO to K17. REMOVE the jumper wires. GO to K15. K15 ISOLATE THE AUDIO RCU MODULE (OR RETM ) Connect: SDARS Module C3290 (If Disconnected). Connect: ACM C240C (If Disconnected). Connect: APIM C3342 (If Disconnected). Disconnect: Audio RCU Module C3077 (If Connected And Equipped) or RETM C949 (If Connected And Equipped). Connect fused jumper wires between the audio RCU module (or RETM ) pins as follows: Audio RCU Module or RETM Connector-Pin/Circuit C or C949-5 VME41 (GN/OG) or VME52 (BU) C or C949-6 RME41 (BU/BN) or RME52 (GY/OG) C or C VME42 (VT/BN) or VME53 (VT/GN) C or C RME42 (YE/BU) or RME53 (BN/WH) Audio RCU Module or RETM Connector-Pin/Circuit C or C VME17 (GN) C or C949-9 RME17 (GY) C or C VME18 (VT) C or C RME18 (YE) Operate the audio system in satellite radio mode. Does the satellite radio audio operate correctly? REMOVE the jumper wires. If the vehicle is equipped with a RETM, GO to K19. Otherwise, GO to K18. REMOVE the jumper wires. GO to K16. K16 CHECK FOR CORRECT SDARS MODULE OPERATION Disconnect the SDARS module connector.

6 Page 6 of 6 Connect the SDARS module connector and make sure it seats correctly. Operate the system and verify the concern is still present. INSTALL a new SDARS module. REFER to Satellite Digital Audio Receiver System (SDARS) Module in this section. TEST the system for normal operation. If the concern is still present, INSTALL a new ACM. REFER to Audio Control Module (ACM). K17 CHECK FOR CORRECT APIM OPERATION Disconnect the APIM connector. Connect the APIM connector and make sure it seats correctly. Wait 2 minutes for the APIM to re-initalize. Operate the system and verify the concern is still present. Click here to access Guided Routine (APIM). K18 CHECK FOR CORRECT AUDIO RCU MODULE OPERATION Disconnect the audio RCU module connector. Connect the audio RCU module connector and make sure it seats correctly. INSTALL a new audio RCU module. REFER to Audio Rear Control Unit (RCU) Module in this section. TEST the system for normal operation. K19 CHECK FOR CORRECT RETM OPERATION Disconnect the RETM connector. Connect the RETM connector and make sure it seats correctly. INSTALL a new RETM. REFER to Rear Entertainment Module (RETM) in this section. TEST the system for normal operation. K20 CHECK FOR CORRECT ACM OPERATION Disconnect all the ACM connectors. Connect all the ACM connectors and make sure they seat correctly. Operate the system and determine if the concern is still present. INSTALL a new ACM. REFER to Audio Control Module (ACM) in this section. TEST the system for normal operation.

Information and Entertainment System

SECTION 415-00: Information and Entertainment Systems 2009 Mustang Workshop Manual DIAGNOSIS AND TESTING Procedure revision date: 09/23/2008 Information and Entertainment System Special Tool(s) 73III Automotive