Nissan Maxima Service and Repair Manual: B2556 push-button ignition switch

Description

The switch that changes the power supply position. BCM maintains the power supply position status. BCM changes the power supply position with the operation of the push-button ignition switch.

DTC Logic

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.PERFORM DTC CONFIRMATION PROCEDURE

  1.  Start the engine and wait for at least 100 seconds.

  2.  Check "Self Diagnostic Result" with CONSULT.

Diagnosis Procedure

Regarding Wiring Diagram information, refer to SEC-147, "Wiring Diagram" or SEC-128, "Wiring Diagram".

1.CHECK PUSH-BUTTON IGNITION SWITCH INPUT SIGNAL

  1.  Turn ignition switch OFF.

  2.  Disconnect push-button ignition switch harness connector.

  3.  Check voltage between push-button ignition switch harness connector M38 terminal 4 and ground.

2.CHECK PUSH-BUTTON IGNITION SWITCH

Refer to SEC-47, "Component Inspection".

3.CHECK INTERMITTENT INCIDENT

Refer to GI-41, "Intermittent Incident".

 Inspection End.

4.CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT FOR SHORT

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

  2.  Check continuity between push-button ignition switch harness connector M38 terminal 4 and ground.

Component Inspection

1.CHECK PUSH-BUTTON IGNITION SWITCH

  1.  Turn ignition switch OFF.

  2.  Disconnect push-button ignition switch harness connector.

  3.  Check continuity between push-button ignition switch terminals under the following conditions.

    B2555 stop lamp

    B2557 vehicle speed