B1809

B1809-PASSENGER DOOR LOCK/UNLOCK SWITCH CIRCUIT STUCK UNLOCK - PASSENGER DOOR MODULE





For a complete wiring diagram Consult Diagrams/Electrical.

- When Monitored:
Continuously

- Set Condition:
When the Passenger Door Lock Switch Mux circuit is between 0.5 volts 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 both positions several times.
Cycle the ignition from on to off 3 times.
Turn the ignition on.
With the scan tool, read DTC's.
Does the scan tool display B1809-PASSENGER DOOR LOCK/UNLOCK SWITCH CIRCUIT STUCK UNLOCK?

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. PASSENGER DOOR LOCK SWITCH SHORTED TO GROUND




With the scan tool, erase DTC's.
Disconnect the Passenger Window/Door Lock Switch connector.
Turn the ignition on.
With the scan tool, read DTC's.
Does the scan tool display DOOR LOCK/UNLOCK SWITCH CIRCUIT STUCK UNLOCK?

No

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

Yes

- Go to 3

3. (G160) (LHD) OR (G161) (RHD) DOOR LOCK SWITCH MUX CIRCUIT SHORT TO GROUND




Turn the ignition off.
Disconnect the Passenger Door Module C2 connector.
Measure the resistance between ground and the (G160/LHD) or (G161/RHD) Door Lock Switch Mux circuit in the Passenger Door Module C2 connector.
Is the resistance below 10000.0 ohms?

Yes

- Repair the (G160) or (G161) Door Lock Switch Mux circuit for a short to ground.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test

No

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