Diagnosis Procedure
WARNING: This page is about a different car, the 2012 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK IGNITION SWITCH OUTPUT SIGNAL (PUSH-BUTTON IGNITION SWITCH)
- Disconnect push-button ignition switch connector and IPDM E/R connector.
- Check voltage between push-button ignition switch harness connector and ground.
(+) (-) Voltage (V) (Approx.) Push-button ignition switch Connector Terminal M101 4 Ground 12 Is the inspection result normal?
YES: GO TO 3.
NO: GO TO 2.
- CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT (BCM)
- Disconnect BCM connector.
- Check continuity between BCM harness connector and push-button ignition switch harness connector.
BCM Push-button ignition switch Continuity Connector Terminal Connector Terminal M71 100 M101 4 Existed - Check continuity between push-button ignition switch harness connector and ground.
Push-button ignition switch Ground Continuity Connector Terminal M101 4 Not existed Is the inspection result normal?
YES: Replace BCM. Refer to "REMOVAL AND INSTALLATION ".
NO: Repair or replace harness.
- CHECK IGNITION SWITCH OUTPUT SIGNAL (IPDM E/R)
Check voltage between IPDM E/R harness connector and ground.
(+) (-) Voltage (V) (Approx.) IPDM E/R Connector Terminal E17 66 Ground 12 Is the inspection result normal?
YES: Replace IPDM E/R.
NO: GO TO 4.
- CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT (IPDM E/R)
- Disconnect IPDM E/R connector.
- Check continuity between IPDM E/R harness connector and push-button ignition switch harness connector.
IPDM E/R Push-button ignition switch Continuity Connector Terminal Connector Terminal E17 66 M101 4 Existed - Check continuity between push-button ignition switch harness connector and ground.
Push-button ignition switch Ground Continuity Connector Terminal M101 4 Not existed Is the inspection result normal?
YES: GO TO 5.
NO: Repair or replace harness.
- CHECK INTERMITTENT INCIDENT
Refer to "INTERMITTENT INCIDENT ".
: INSPECTION END