Diagnosis Procedure
WARNING: This page is about a different car, the 2018 Nissan Titan XD and 2018 Nissan Titan. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK INTAKE DOOR MOTOR POWER SUPPLY
- Turn ignition switch ON.
- Check voltage between intake door motor harness connector and ground.
(+)
(-)
Voltage
(Approx.)
Intake door motor
Connector
Terminal
M227
1
Ground
Battery voltage
Is the inspection result normal?
YES
GO TO 2 .
NO
GO TO 4 .
- CHECK INTAKE DOOR MOTOR GROUND CIRCUIT
- Turn ignition switch OFF.
- Disconnect intake door motor connector.
- Check continuity between intake door motor harness connector and ground.
Intake door motor
(-)
Continuity
Connector
Terminal
M227
2
Ground
Yes
Is the inspection result normal?
YES
GO TO 3 .
NO
Repair harness or connector.
- CHECK INSTALLATION OF INTAKE DOOR MOTOR
Check intake door motor is properly installed. Refer to Exploded View .
Is the inspection result normal?
YES
Replace intake door motor. Refer to Removal and Installation .
NO
Repair or replace malfunctioning part.
- CHECK INTAKE DOOR MOTOR POWER SUPPLY CIRCUIT
- Turn ignition switch OFF.
- Disconnect intake door motor connector and A/C auto amp. connector.
- Check continuity between intake door motor harness connector and A/C auto amp. harness connector.
Intake door motor
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M227
1
M137
17
Yes
Is the inspection result normal?
YES
Replace A/C auto amp. Refer to Removal and Installation .
NO
Repair harness or connector.