Nissan GT-R (R35) · Service Manual BODY EXTERIOR, DOORS, ROOF & VEHICLE SECURITY

B261A PUSH-BUTTON IGNITION SWITCH

INTELLIGENT KEY SYSTEM

B261A

Description


BCM transmits the change in the power supply position with the push-button ignition switch to IPDM E/R via the CAN communication. IPDM E/R transmits the power supply position status via CAN communication to BCM.

DTC Logic

 
 DTC DETECTION LOGIC

NOTE：
  • If DTC B261A is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to DTC Logic.
  • If DTC B261A is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to DTC Logic.

DTC No.
 		Trouble diagnosis name
 		DTC detecting condition
 		Possible cause
B261A
 		PUSH-BTN IGN SW
 		BCM detects the difference between the following for 1 second or more
  • Power supply position with push-button ignition switch
  • Power supply position from IPDM E/R (CAN)
  • Harness or connectors
    (Push-button ignition switch circuit is open or shorted)
  • BCM
  • IPDM E/R

 
 DTC CONFIRMATION PROCEDURE

 
 1.PERFORM DTC CONFIRMATION PROCEDURE

Diagnosis Procedure


 
 1.CHECK BCM OUTPUT
 
 2.CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT