Diagnosis Procedure
WARNING: This page is about a different car, the 2020 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK AIR MIX DOOR MOTOR (REAR) POWER SUPPLY
- Turn ignition switch ON.
- Check voltage between air mix door motor (rear) harness connector and ground.
+
-
Voltage
(Approx.)
Air mix door motor (rear)
Connector
Terminal
M132
1
Ground
Battery voltage
Is the inspection result normal?
YES
GO TO 2.
NO
GO TO 4.
- CHECK AIR MIX DOOR MOTOR (REAR) GROUND CIRCUIT
- Turn ignition switch OFF.
- Disconnect air mix door motor (rear) connector.
- Check continuity between air mix door motor (rear) harness connector and ground.
Air mix door motor (rear)
--
Continuity
Connector
Terminal
M132
3
Ground
Yes
Is the inspection result normal?
YES
GO TO 3.
NO
Repair harness or connector.
- CHECK INSTALLATION OF AIR MIX DOOR MOTOR (REAR)
Check air mix door motor (rear) is properly installed. Refer to Exploded View
Is the inspection result normal?
YES
Replace air mix door motor (rear). Refer to Removal and Installation - Air Mix Door Motor (Rear) .
NO
Repair or replace malfunctioning part.
- CHECK AIR MIX DOOR MOTOR (REAR) POWER SUPPLY CIRCUIT
- Turn ignition switch OFF.
- Disconnect air mix door motor (rear) connector and A/C auto amp. connector.
- Check continuity between air mix door motor (rear) harness connector and A/C auto amp. harness connector.
Air mix door motor (rear)
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M132
1
M50
17
Yes
Is the inspection result normal?
YES
Replace A/C auto amp. Refer to Removal and Installation .
NO
Repair harness or connector.