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 COMMUNICATION SIGNAL CIRCUIT (A/C AUTO AMP. → REAR AIR CONTROL) FOR OPEN
- Turn ignition switch OFF.
- Disconnect rear air control and A/C auto amp. connector.
- Check continuity between rear air control harness connector and A/C auto amp. harness connector.
Rear air control A/C auto amp. Continuity Connector Terminal Connector Terminal M258 9 M50 5 Yes
Is the inspection result normal?
YES
GO TO STEP 2 .
NO
Repair harness or connector.
- CHECK COMMUNICATION SIGNAL CIRCUIT (A/C AUTO AMP. → REAR AIR CONTROL) FOR SHORT
Check continuity between rear air control harness connector and ground.
Rear air control - Continuity Connector Terminal M258 9 Ground No Is the inspection result normal?
YES
GO TO STEP 3 .
NO
Repair harness or connector.
- CHECK COMMUNICATION SIGNAL CIRCUIT (REAR AIR CONTROL → A/C AUTO AMP.) CIRCUIT FOR OPEN
Check continuity between rear air control harness connector and A/C auto amp. harness connector.
Rear air control A/C auto amp. Continuity Connector Terminal Connector Terminal M258 10 M50 25 Yes Is the inspection result normal?
YES
GO TO STEP 4 .
NO
Repair harness or connector.
- CHECK COMMUNICATION SIGNAL CIRCUIT (REAR AIR CONTROL → A/C AUTO AMP.) CIRCUIT FOR SHORT
Check continuity between rear air control harness connector and ground.
Rear air control - Continuity Connector Terminal M258 10 Ground No Is the inspection result normal?
YES
Replace A/C auto amp. Refer to REMOVAL AND INSTALLATION .
NO
Repair harness or connector.