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 TX (A/C SWITCH ASSEMBLY - A/C AUTO AMP.) CIRCUIT CONTINUITY
- Turn ignition switch OFF.
- Disconnect the A/C switch assembly connector and the A/C auto amp. connector.
- Check continuity between A/C switch assembly harness connector and A/C auto amp. harness connector.
A/C switch assembly
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M133
10
M137
24
Yes
- Check continuity between A/C switch assembly harness connector and ground.
A/C switch assembly
(-)
Continuity
Connector
Terminal
M133
10
Ground
No
Is the inspection result normal?
YES
GO TO 2 .
NO
Repair harness or connector.
- CHECK RX (A/C AUTO AMP. - A/C SWITCH ASSEMBLY) CIRCUIT CONTINUITY
- Check continuity between A/C switch assembly harness connector and A/C auto amp. harness connector.
A/C switch assembly
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M133
9
M137
4
Yes
- Check continuity between A/C switch assembly harness connector and ground.
A/C switch assembly
(-)
Continuity
Connector
Terminal
M133
9
Ground
No
Is the inspection result normal?
YES
Perform trouble diagnosis for the A/C switch assembly. Refer to Diagnosis Procedure .
NO
Repair harness or connector.
- Check continuity between A/C switch assembly harness connector and A/C auto amp. harness connector.