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

B2601 SHIFT POSITION

INTELLIGENT KEY SYSTEM

B2601

Description


BCM confirms the shift position with the following 4 signals.
  • Shift lever
  • P/N position switch (TCM)
  • P position signal from IPDM E/R (CAN)
  • P position signal from TCM (CAN)

DTC Logic

 
 DTC DETECTION LOGIC

NOTE：
  • If DTC B2601 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to DTC Logic.
  • If DTC B2601 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
B2601
 		SHIFT POSITION
 		BCM detects when a difference between the shift P input signal and the shift position signal received from IPDM E/R via CAN communication continues for 2 seconds or more
  • Harness or connectors
    (Control device circuit is open or shorted)
  • Control device (detention switch)

 
 DTC CONFIRMATION PROCEDURE

 
 1.PERFORM DTC CONFIRMATION PROCEDURE

Diagnosis Procedure


 
 1.CHECK CONTROL DEVICE POWER SUPPLY
 
 2.CHECK CONTROL DEVICE POWER SUPPLY CIRCUIT
 
 3.CHECK CONTROL DEVICE CIRCUIT (BCM)
 
 4.CHECK CONTROL DEVICE CIRCUIT (IPDM E/R)
 
 5.CHECK CONTROL DEVICE (DETENTION SWITCH)
 
 6.CHECK INTERMITTENT INCIDENT

Component Inspection


 
 1.CHECK CONTROL DEVICE (DETENTION SWITCH)