Test D: The Auto-Lock Does Not Operate Correctly

PINPOINT TEST D: THE AUTO-LOCK DOES NOT OPERATE CORRECTLY

D1:

D2-D5:

D5-D8:

D8-D10:

D10-D11:

D11-D12:

D13-D15:

D15-D18:

Normal Operation
The auto-locking function causes the vehicle to automatically lock all the doors when the following conditions are all concurrently met during the current key cycle:
- all doors are closed
- auto-locking function is active
- key in ON position
- brake pedal is applied and vehicle speed is less than 5 km/h (3 mph)
- vehicle speed exceeds 5 km/h (3 mph)

Relock occurs after a door is opened, the brake pedal is applied while the vehicle speed is less than 5 km/h (3 mph), all the doors are closed again, and the vehicle speed increases to 5 km/h (3 mph) or greater. The vehicle security module monitors circuits 344 (BK/YE), 345 (BK/PK), 346 (BK/WH) and 346 (BK/WH)/363 (BK/LB) for a ground signal to determine if any door is open and circuit 700 (WH/VT) and 1961 (BN/LB) if the liftgate is open. The ajar switches are grounded on circuit 57 (BK).

Possible Causes
- circuit 57 (BK) open
- circuit 344 (BK/YE) open or short to voltage
- circuit 345 (BK/PK) open or short to voltage
- circuit 346 (BK/WH) open or short to voltage
- circuit 346 (BK/WH)/363 (BK/LB) open or short to voltage
- circuit 700 (WH/VT) short to voltage
- circuit 1961 (BN/LB) open
- door ajar switches
- vehicle security module