Diagnosis Procedure

WARNING: This page is about a different car, the 2013 Nissan Armada. However, it is still accessible from the selected car via links, so may be relevant.

Regarding Wiring Diagram information, refer to "WIRING DIAGRAM ".

CAUTION: Before testing, perform the following procedure to ensure the engine cannot start.

Remove fuel pump fuse.
Crank or start the engine (where possible) until the fuel pressure is depleted.

CHECK STARTER MOTOR MAGNETIC SWITCH CIRCUIT

Turn ignition switch OFF.
Disconnect starter motor connector F28.
Shift transmission into park or neutral.

Check voltage between starter motor harness connector F28 terminal 2 and ground with the ignition switch in START.

(+)		(-)	Condition	Voltage
Connector	Terminal	(-)	Condition	Voltage
F28	2	Ground	Ignition switch in START	Battery voltage

Is battery voltage present?

YES: Magnetic switch circuit is OK. Further inspection is necessary. Refer to "WORK FLOW (WITH GR8-1200 NI) " or "WORK FLOW (WITHOUT GR8-1200 NI) ".

NO: GO TO 2

CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Check the IPDM E/R harness connector E120 and starter motor harness connector F28 for damage, bent pins and loose connections.
  Is the inspection result normal?
  
  YES: GO TO 3
  
  NO: Repair the terminal and connector.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

Disconnect IPDM E/R connector E120 and starter motor connector F28.

Check continuity between starter motor harness connector F28 terminal 2 and IPDM E/R harness connector E120 terminal 19.

Connector	Terminal	Connector	Terminal	Continuity
F28	2	E120	19	Yes

Check continuity between starter motor harness connector F28 terminal 2 and ground.

Connector	Terminal	Ground	Continuity
F28	2	Ground	No

Are the continuity test results as specified?

YES: Further inspection is necessary. Refer to "WORK FLOW (WITH GR8-1200 NI) " or "WORK FLOW (WITHOUT GR8-1200 NI) ".

NO: Repair the harness.