Nissan Maxima Service and Repair Manual: B2555 stop lamp

Description

BCM detects the stop lamp status and confirms the stop lamp switch ON/OFF status. BCM confirms the engine start condition according to the stop lamp switch ON/OFF status.

DTC Logic

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.PERFORM DTC CONFIRMATION PROCEDURE

  1.  Depress the brake pedal and wait for at least 1 second.

  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 STOP LAMP SWITCH INPUT SIGNAL

  1.  Turn ignition switch OFF.

  2.  Disconnect BCM harness connector.

  3.  Check voltage between BCM harness connector M18 terminal 26 and ground.

2.CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT

  1.  Disconnect stop lamp switch harness connector.

  2.  Check voltage between stop lamp harness connector E38 terminal 3 and ground.

3.CHECK STOP LAMP SWITCH CIRCUIT

1. Check continuity between stop lamp switch harness connector E38 (A) terminal 4 and BCM harness connector M18 (B) terminal 26.

2. Check continuity between BCM harness connector M18 terminal 26 and ground.

4.CHECK STOP LAMP SWITCH

Refer to SEC-44, "Component Inspection".

5.CHECK INTERMITTENT INCIDENT

Refer to GI-41, "Intermittent Incident".

 Inspection End.

Component Inspection

1.CHECK STOP LAMP SWITCH

  1.  Turn ignition switch OFF.

  2.  Disconnect stop lamp switch harness connector.

  3.  Check continuity between stop lamp switch terminals under the following conditions.

    B2193 chain of ECM-IMMU

    B2556 push-button ignition switch