B1808

B1808-PASSENGER DOOR LOCK/UNLOCK SWITCH CIRCUIT STUCK LOCK - PDM





For a complete wiring diagram refer to Diagrams/Electrical.

- When Monitored:

Continuously.

- Set Condition:

When the Passenger Door Lock Switch Mux circuit is between 0.8 and 1.5 volts for over 30 seconds.





Diagnostic Test

1. TEST FOR INTERMITTENT CONDITION

With the scan tool, record and erase DTC's

Operate the Passenger Door Lock Switch in all positions several times.

Turn the ignition on and wait 30 seconds.

With the scan tool, read DTC's.

Does the scan tool display B1808-PASSENGER DOOR LOCK/UNLOCK SWITCH CIRCUIT STUCK LOCK?

Yes

- Go To 2

No

- The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test

2. DOOR LOCK SWITCH SHORTED





With the scan tool, erase DTC's.

Disconnect the Passenger Window/Door Lock Switch connector.

With the scan tool, read DTC's.

Does the scan tool display B1808-PASSENGER DOOR LOCK/UNLOCK SWITCH CIRCUIT STUCK LOCK?

No

- Replace the Passenger Window/Door Lock Switch.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test

Yes

- Go To 3

3. (G160) PASSENGER DOOR LOCK SWITCH MUX CIRCUIT SHORT TO GROUND





Turn the ignition off.

Disconnect the Passenger Door Module C5 connector.

Measure the resistance between ground and the (G160) Passenger Door Lock Switch Mux circuit in the Passenger Window/Door Lock Switch connector.

Is the resistance below 10,000.0 ohms?

Yes

- Repair the (G160) Passenger Door Lock Switch Mux circuit for a short to ground.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test

No

- Go To 4

4. (G160) PASSENGER DOOR LOCK SWITCH MUX CIRCUIT SHORT TO (Q936) PASSENGER WINDOW EXPRESS SWITCH RETURN CIRCUIT





Measure the resistance between the (G160) Passenger Door Lock Switch Mux circuit and the (Q936) Passenger Window Express Switch Return circuit.

Is the resistance below 10,000.0 ohms?

Yes

- Repair the (G160) Passenger Door Lock Switch Mux circuit for a short to the (Q936) Passenger Window Express Switch Return circuit.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test

No

- Replace the Passenger Door Module.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test