All Doors Failing to Lock/Unlock From One Switch

Test 1:

Test 2 - 6:

Test 7 - 12:

Test 13 - 14:

SYMPTOM
ALL DOORS FAILING TO LOCK/UNLOCK FROM ONE SWITCH

TEST NOTE
This symptom is diagnosed using the test DOOR LOCK SWITCH FAILURE.

WHEN MONITORED
Continuously

SET CONDITION
If the Door Lock Switch is active for more than 30 seconds.

POSSIBLE CAUSES
- CTM (Left Power Door Lock input open)
- CTM (Right Power Door Lock input open)
- Door Lock Switch output circuit shorted to battery
- Power Door Lock DRB read (switch pressed)
- Door lock switch output (lock) circuit
- Fused B(+) circuit open (drivers)
- Fused B(+) circuit open (passengers)
- Door lock switch output (lock) circuit
- Left Power Door Lock Switch (open)
- Left Power Door Lock Switch (shorted)
- Right Power Door Lock Switch (open)
- Right Power Door Lock Switch (shorted)
- CTM (Power Door Lock input shorted high)