Diagnosis Procedure
WARNING: This page is about a different car, the 2016 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.
Regarding Wiring Diagram information, refer to WIRING DIAGRAM (Bose Audio w/Navi w/o Surround) or WIRING DIAGRAM (Bose Audio w/Navi and Surround).
- CHECK LED A CIRCUIT CONTINUITY
- Turn ignition switch OFF.
- Disconnect TCU connector M47 and telematics switch connector.
- Check continuity between TCU connector M47 and telematics switch connector R105.
TCU Telematics switch Continuity Connector Terminal Connector Terminal M47 35 R105 2 Yes
Is the inspection result normal?
YES
GO TO 2 .
NO
Repair or replace harness or connectors.
- CHECK TELEMATICS SWITCH
Check continuity between telematics switch terminals.
Telematics switch Condition Continuity Terminal Terminal 2 7 Switch pressed Yes Switch released No Is the inspection result normal?
YES
Replace TCU. Refer to REMOVAL AND INSTALLATION .
NO
Replace telematics switch.