Your Vehicle: 2009 Nissan-Datsun Altima V6-3.5L (VQ35DE)
 
Vehicle » A L L Diagnostic Trouble Codes ( DTC ) » Testing and Inspection » B Code Charts » B2603 » Sedan With Intelligent Key  
 
 
  Sedan With Intelligent Key  
 

B2603 SHIFT POSITION STATUS

Description
BCM confirms the shift position with the following 2 signals.

  • CVT selector lever
  • P/N position switch

DTC Logic

DTC DETECTION LOGIC

NOTE:

  

DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE

  1. Start the engine under the following conditions and wait for at least 1 second.
    • CVT selector lever is in the P position.
    • Do not depress the brake pedal.
  1. Shift to N and wait for at least 1 second.
  2. Shift to any gear other than P or N and wait for at least 1 second.
  3. Check "Self diagnostic result" with CONSULT-III. Is DTC detected?

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

Diagnosis Procedure
1.CHECK DTC WITH IPDM E/R
Check "Self diagnostic result" with CONSULT-III. Refer to See: Testing and Inspection.
Is the Inspection result normal?
YES >> GO TO 2
NO >> Repair or replace malfunctioning parts.
2.CHECK PNP SWITCH CIRCUIT

  1. Turn ignition switch OFF.
  2. Disconnect TCM harness connector and BCM harness connector.

  

  1. Check continuity between TCM harness connector F16 (A) terminal 20 and BCM harness connector M18 (B) terminal 48.

  

  1. Check continuity between TCM harness connector F16 (A) terminal 20 and ground.

  

Is the Inspection result normal?
YES >> GO TO 3
NO >> Repair harness or connector.
3.CHECK CVT DEVICE POWER SUPPLY

  1. Turn ignition switch OFF.
  2. Disconnect CVT device (park position switch) harness connector.

  

  1. Check voltage between CVT device (park position switch) harness connector and ground.

  

Is the Inspection result normal?
YES >> GO TO 5
NO >> GO TO 4
4.CHECK CVT DEVICE POWER SUPPLY CIRCUIT

  1. Disconnect BCM harness connector.

  

  1. Check continuity between BCM harness connector M19 (A) terminal 84 and CVT device (park position switch) harness connector M23 (B) terminal 8.

  

  1. Check continuity between BCM harness connector M19 (A) terminal 84 and ground.

  

Is the Inspection result normal?
YES >> Replace BCM. Refer to See: Body and Frame\Body Control Systems\Body Control Module\Service and Repair.
NO >> Repair harness or connector.
5.CHECK CVT DEVICE CIRCUIT

  1. Disconnect BCM harness connector.

  

  1. Check continuity between BCM harness connector M19 (A) terminal 87 and CVT device (park position switch) harness connector M23 (B) terminal 9.

  

  1. Check continuity between BCM harness connector M19 (A) terminal 87 and ground.

  

Is the Inspection result normal?
YES >> GO TO 6
NO >> Repair harness or connector.
6.CHECK CVT DEVICE
Refer to See: B2601\Sedan With Intelligent Key.
Is the Inspection result normal?
YES >> GO TO 7
NO >> Replace CVT device. Refer to See: Transmission and Drivetrain\Continuously Variable Transmission/Transaxle\Shifter CVT\Service and Repair\CVT RE0F09B\Removal And Installation (RE0F09B) or See: Transmission and Drivetrain\Continuously Variable Transmission/Transaxle\Shifter CVT\Service and Repair\CVT RE0F10A\Removal And Installation (RE0F10A).
7.CHECK INTERMITTENT INCIDENT
Refer to See: Testing and Inspection\Initial Inspection and Diagnostic Overview\Service Information For Electrical Incident\Intermittent Incident.
>> Inspection End.