Your Vehicle: 2009 Nissan-Datsun Altima V6-3.5L (VQ35DE)
 
Vehicle » A L L Diagnostic Trouble Codes ( DTC ) » Testing and Inspection » B Code Charts » B2621 » Sedan Without Intelligent Key  
 
 
  Sedan Without Intelligent Key  
 

B2621 INSIDE KEY ANTENNA 1

Description
Detects whether keyfob is inside the vehicle.
Installed in the center area of the instrument center.

DTC Logic

DTC DETECTION LOGIC

  

DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT-III

  1. Perform INSIDE ANT DIAGNOSIS on Work Support" of "MULTI REMOTE ENTRY".
  2. Perform "MULTI REMOTE ENTRY" Self Diagnostic Result. Is inside key antenna DTC detected?

YES >> Refer to Diagnosis Procedure.
NO >> Inside key antenna (instrument panel) is OK.

Diagnosis Procedure
1.CHECK INSIDE KEY ANTENNA INPUT SIGNAL 1

  1. Turn ignition switch OFF.

  

  1. Check signal between BCM connector and ground with oscilloscope.

  

Is the Inspection result normal?
YES >> Check the condition of harness and connector.
NO >> GO TO 2

2.CHECK INSIDE KEY ANTENNA CIRCUIT

  1. Disconnect BCM and instrument panel antenna connector.

  

  1. Check continuity between BCM connector and instrument panel antenna connector.

  

  1. Check continuity between BCM connector and ground.

  

Is the Inspection result normal?
YES >> GO TO 3
NO >> Repair or replace harness between BCM and instrument panel antenna.
3.CHECK INSIDE KEY ANTENNA INPUT SIGNAL 2

  1. Replace instrument panel antenna (new antenna or other antenna).
  2. Connect BCM and instrument panel antenna connector.

  

  1. Check signal between BCM connector and ground with oscilloscope.

  

Is the Inspection result normal?

YES >> Replace instrument panel antenna. Refer to See: Body and Frame\Interior Moulding / Trim\Dashboard / Instrument Panel\Service and Repair\Removal And Installation.
NO >> Replace BCM. Refer to See: Body and Frame\Body Control Systems\Body Control Module\Service and Repair.