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 .
- CHECK CONTINUITY BETWEEN AV CONTROL UNIT AND BOSE SPEAKER AMP.
- Turn ignition switch OFF.
- Disconnect AV control unit connector M122 and Bose speaker amp. connector B130.
- Check continuity between AV control unit connector M122 and Bose speaker amp. connector B130.
AV control unit Bose speaker amp. Continuity Connector Terminal Connector Terminal M122 1 B130 20 Yes - Check continuity between AV control unit connector M122 and ground.
AV control unit Ground Continuity Connector Terminal M122 1 - No
Is the inspection result normal?
YES
GO TO STEP 2 .
NO
Repair or replace harness or connectors.
- CHECK AV CONTROL UNIT VOLTAGE
- Connect AV control unit connector M122.
- Turn ignition switch ON.
- Check voltage between AV control unit connector M122 and ground.
AV control unit Ground Voltage
(Approx.)(+) (-) Connector Terminal M122 1 - Battery voltage
Is the inspection result normal?
YES
Replace Bose speaker amp. Refer to REMOVAL AND INSTALLATION .
NO
Replace AV control unit. Refer to REMOVAL AND INSTALLATION .