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.

SELF DIAGNOSTIC RESULT
CONSULT
1. Perform "Self Diagnostic Result" mode of "IPDM E/R".
2. Erase DTCs.
3. Turn ignition switch OFF.
4. Turn ignition switch ON.
5. Perform "Self Diagnostic Result" mode of "IPDM E/R".
Are any DTCs detected?

YES

Refer to DTC Index .

NO

GO TO 2.

CHECK IGNITION RELAY-1 CONTROL SIGNAL (IPDM E/R)

Check voltage between BCM connector M19 terminal 70 and ground.

BCM		Ground	Condition	Voltage (Approx.)
Connector	Terminal
M19	70	-	Ignition: OFF	Battery voltage
			Ignition: ON	0V

Is the inspection result normal?

YES

GO TO 3.

Replace BCM. Refer to Removal and Installation .

CHECK IGNITION RELAY-1 CONTROL SIGNAL CIRCUIT

Turn ignition switch OFF.
Disconnect IPDM E/R connector E130 and BCM connector M19.

Check continuity between IPDM E/R connector E130 terminal 68 and BCM connector M19 terminal 70.

IPDM E/R		BCM		Continuity
Connector	Terminal	Connector	Terminal	Continuity
E130	68	M19	70	Yes

Check continuity between IPDM E/R connector E130 terminal 68 and ground.

IPDM E/R		Ground	Continuity
Connector	Terminal
E130	68	-	No

Is the inspection result normal?

YES

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

Repair or replace harness or connectors.