Diagnosis Procedure

WARNING: This page is about a different car, the 2009 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.

CHECK PUSH-BUTTON IGNITION SWITCH INPUT SIGNAL

Turn ignition switch OFF.
Disconnect push-button ignition switch harness connector.

Check voltage between push-button ignition switch harness connector and ground.

VOLTAGE REFERENCE CHART

Push-button ignition switch		Ground	Voltage [V]
Connector	Terminal	Ground	Voltage [V]
M38	4	Ground	Battery voltage

Fig 1: Checking Voltage Between Push-Button Ignition Switch Harness Connector And Ground

Courtesy of NISSAN MOTOR CO., U.S.A.

Is the inspection result normal?

YES: GO TO 2

NO: GO TO 4

CHECK PUSH-BUTTON IGNITION SWITCH
Refer to "COMPONENT INSPECTION ".

Is the inspection result normal?

YES: GO TO 3

NO: Replace push-button ignition switch. Refer to "REMOVAL AND INSTALLATION ".
CHECK INTERMITTENT INCIDENT
Refer to "INTERMITTENT INCIDENT ".

Inspection End.

CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT FOR SHORT

Disconnect BCM harness connector and IPDM E/R harness connector.

Check continuity between push-button ignition switch harness connector and ground.

CONTINUITY REFERENCE CHART

Push-button ignition switch		Ground	Continuity
Connector	Terminal	Ground	Continuity
M38	4	Ground	No

Fig 2: Checking Continuity Between Push-Button Ignition Switch Harness Connector And Ground

Courtesy of NISSAN MOTOR CO., U.S.A.

Is the inspection result normal?

YES: Replace BCM. Refer to "REMOVAL AND INSTALLATION ".

NO: Repair harness or connector.