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 FUSE
1. Turn ignition switch OFF.
2. Check 10A fuse (No. 51, located in IPDM E/R).
  NOTE: Refer to the appropriate system Terminal Arrangement .
Is the inspection result normal?

YES

GO TO 2 .

NO

Replace the blown fuse after repairing the affected circuit.

CHECK MAGNET CLUTCH POWER SUPPLY CIRCUIT

Disconnect compressor connector and IPDM E/R connector.

Check continuity between compressor harness connector and IPDM E/R harness connector.

Compressor		IPDM E/R		Continuity
Connector	Terminal	Connector	Terminal
F150 (Cummins 5.0L)	1	E123	49	Yes
F96 (VK56VD)

Is the inspection result normal?

YES

GO TO 2 .

Repair harness or connector.

CHECK MAGNET CLUTCH
Directly apply battery voltage to the magnet clutch. Check operation visually and by sound.

Does it operate normally?

YES

Replace IPDM E/R. Refer to Removal and Installation of IPDM E/R .

NO

Replace magnet clutch. Refer to Removal and Installation .