Your Vehicle: 2009 Nissan-Datsun Altima V6-3.5L (VQ35DE)
 
Vehicle » A L L Diagnostic Trouble Codes ( DTC ) » Testing and Inspection » B Code Charts » B261A » Security System » Coupe  
 
 
  Coupe  
 

B261A PUSH-BUTTON IGNITION SWITCH

Description
IPDM E/R transmits the push-button ignition switch status via CAN communication to BCM. BCM receives push-button ignition switch status by hard wire input. BCM compares the 2 signals for mismatch.

DTC Logic

DTC DETECTION LOGIC

NOTE:

  

DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE

  1. Press the push-button ignition switch under the following conditions and wait for at least 1 second.
    • CVT selector lever is in the P position
    • Do not depress brake pedal.
  1. Check "Self diagnostic result" with CONSULT-III. Is DTC detected?

YES >> Refer to "Diagnosis Procedure".
NO >> Inspection End.

Diagnosis Procedure
1.CHECK PUSH-BUTTON IGNITION SWITCH OUTPUT SIGNAL 1

  1. Turn ignition switch OFF.
  2. Disconnect push-button ignition switch harness connector and IPDM E/R harness connector.

  

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

  

Is the Inspection result normal?
YES >> GO TO 4
NO >> GO TO 2
2.CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT

  1. Disconnect BCM harness connector.

  

  1. Check continuity between push-button ignition switch harness connector M38 (A) terminal 4 and BCM harness connector M19 (B) terminal 77.

  

  1. Check continuity between push-button ignition switch harness connector M38 (A) terminal 4 and ground.

  

Is the Inspection result normal?
YES >> GO TO 3
NO >> Repair harness or connector.
3.CHECK PUSH-BUTTON IGNITION SWITCH

  1. Disconnect IPDM E/R harness connector.

  

  1. Check continuity between push-button ignition switch harness connector M38 (A) terminal 4 and IPDM E/R harness connector E18 (B) terminal 28.

  

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

  

Is the Inspection result normal?
YES >> GO TO 4
NO >> Repair harness or connector.
4.CHECK INTERMITTENT INCIDENT
Refer to See: Testing and Inspection\Initial Inspection and Diagnostic Overview\Service Information For Electrical Incident\Intermittent Incident.
>> Inspection End.