Component Testing
WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
Door Lock Switch
- Ignition OFF, disconnect the harness connector at the appropriate S13 Door Lock Switch.
- Test for infinite resistance between the signal terminal 2 and the ground terminal 4 with the switch in the open position.
- If less than infinite resistance
Replace the S13 Door Lock Switch.
- If infinite resistance
- If less than infinite resistance
- Test for infinite resistance between the signal terminal 3 and the ground terminal 4 with the switch in the open position.
- If less than infinite resistance
Replace the S13 Door Lock Switch.
- If infinite resistance
- If less than infinite resistance
- Test for less than 2 Ω between the signal terminal 2 and the ground terminal 4 with the switch in the Lock position.
- If 2 Ω or greater
Replace the S13 Door Lock Switch.
- If less than 2 Ω
- If 2 Ω or greater
- Test for less than 2 Ω between the signal terminal 3 and the ground terminal 4 with the switch in the Unlock position.
- If 2 Ω or greater
Replace the S13 Door Lock Switch.
- If less than 2 Ω
- If 2 Ω or greater
- All OK
Door Latch Assembly
- Ignition OFF, disconnect the harness connector at the appropriate A23 Door Latch Assembly.
- Install a 25 A fused jumper wire between one of the control terminals and 12 V. Momentarily install a jumper wire between the other control terminal and ground. Reverse the jumper wires at least two times, the A23 Door Latch Assembly should perform the LOCK and UNLOCK function.
- If the actuator does not perform the LOCK and UNLOCK function
Replace the A23 Door Latch Assembly.
- If the actuator performs the LOCK and UNLOCK function
- If the actuator does not perform the LOCK and UNLOCK function
- All OK