One Secondary Door Lock Inoperative - RHD

ONE SECONDARY DOOR LOCK INOPERATIVE - RHD ONLY





For a complete wiring diagram, refer to the Wiring Information.

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.






1. TEST FOR DIAGNOSTIC TROUBLE CODES
1. Turn the ignition on.
2. With the scan tool, record and erase DTCs.
3. Operate the Driver Door Lock Switch in all positions several times.
4. Cycle the ignition from on to off and wait for five seconds.
5. Turn the ignition on.
6. With the scan tool, read the active DTCs.

Does the scan tool display any Power Door Lock related DTCs?

No

- Go To 2

Yes

- Perform the appropriate diagnostic procedure. A L L Diagnostic Trouble Codes ( DTC ).

2. DOOR LOCK MOTOR CIRCUIT




1. Lower the driver window.
2. Turn the ignition off.
3. Disconnect the inoperative Door Latch (Motor) connector.
4. Connect a 12-volt test light between the (P235) Secondary Lock Driver and the (P237) Secondary Unlock Driver circuits in the latch connector.

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

5. Remove the key from the ignition switch.
6. Using the RKE fob, operate the door lock. Wait 30 seconds and then operate the door unlock. Repeat this several times while observing the test light.

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

Yes

- Replace the Door latch Assembly (or motor).
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Go To 3

3. (P237) SECONDARY UNLOCK DRIVER WIRE OPEN




1. Using a 12-volt test light connected to ground, check the (P237) Secondary Unlock Driver circuit.
2. Using the RKE fob, operate the door lock. Wait 30 seconds and then operate the door unlock. Wait 30 seconds and repeat this several times, waiting 30 seconds between fob presses, while observing the test light.

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

Yes

- Go To 4

No

- Repair the (P237) Secondary Unlock Driver wire for an open.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

4. (P235) SECONDARY LOCK DRIVER WIRE OPEN




1. Using a 12-volt test light connected to ground, check the (P235) Secondary Lock Driver circuit.
2. Close all doors.
3. Using the RKE fob, operate the door lock. Wait 30 seconds and then operate the door unlock. Wait 30 seconds and repeat this several times, waiting 30 seconds between fob presses, while observing the test light.

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

Yes

- Test Complete.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Repair the (P235) Secondary Lock Driver wire for an open.
- Perform the BODY VERIFICATION TEST. Body Verification Test.