*ONE SECONDARY DOOR LOCK INOPERATIVE – RHD ONLY





For a complete wiring diagram Refer to Section 8W.



Possible Causes
  
(P237) SECONDARY UNLOCK DRIVER WIRE OPEN
  
(P235) SECONDARY LOCK DRIVER WIRE OPEN
  
DOOR LATCH OR LIFTGATE MOTOR
  

Theory of Operation


The secondary lock is a dead bolt that prevents the door from being opened when the vehicle has been armed. It can only be locked when the key is out of the ignition, all doors are closed, the front door ajar switch transition has been completed and the RKE fob is pressed in the armed position. The secondary lock will operate approximately 18 seconds after the door latches are locked. The secondary locks are unlocked by a RKE fob unlock command after approximately 375 ms later than the door latches. They will also unlock when a valid SKIM key is turned to the ON position or the vehicle is driven and reaches Auto Door Lock (rolling) status. This system is only used on Right Hand Drive vehicles.



Diagnostic Test

1.TEST FOR DIAGNOSTIC TROUBLE CODES








Does the scan tool display any Power Door Lock related DTC's?

No
  • Go To 2


Yes
  • Refer to the Table of Contents in this section to diagnose and repair the DTC's.

2.DOOR LOCK MOTOR CIRCUIT







NOTE: Graphic shows the Passenger Front Latch – all others similar.





Does the test light illuminate brightly when the locks are actuated in both directions?

Yes


No
  • Go To 3

3. (P237) SECONDARY UNLOCK DRIVER WIRE OPEN






Does the test light illuminate brightly when the unlock cycle is actuated?

Yes
  • Go To 4


No

4. (P235) SECONDARY LOCK DRIVER WIRE OPEN







Does the test light illuminate brightly when the lock cycle is actuated?

Yes
  • Test Complete.


No