B1806

B1806 PASSENGER DOOR LOCK/UNLOCK SWITCH CIRCUIT LOW - TIPM





For a complete wiring diagram refer to Diagrams/Electrical.

- When Monitored:

Continuously

- Set Condition:

When the Right Door Lock Switch Mux circuit is below 0.15 volts for over 10 seconds.





Theory of Operation

This trouble code is for the Right Door Lock Switch for all vehicles including right hand drive.

Diagnostic Test

1.TEST FOR INTERMITTENT CONDITION

With the scan tool, record and erase DTC's

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

Cycle the ignition from on to off.

Turn the ignition on.

With the scan tool, read DTC's.

Does the scan tool display B1806-PASSENGER DOOR LOCK/UNLOCK SWITCH CIRCUIT LOW?

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 Right Door Lock Switch connector.

With the scan tool, read DTC's.

Does the scan tool display B1806-PASSENGER DOOR LOCK/UNLOCK SWITCH CIRCUIT LOW?

No

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

Yes

- Go To 3

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





Turn the ignition off.

Disconnect the TIPM C7 connector.

Measure the resistance between ground and the (G160) Right Door Lock Switch Mux circuit.

Is the resistance below 10,000.0 ohms?

Yes

- Repair the (G160) Right 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) RIGHT DOOR LOCK SWITCH MUX CIRCUIT SHORT TO THE (P37) DOOR LOCK SWITCH RETURN





Measure the resistance between the (G160) Right Door Lock Switch Mux circuit and the (P37) Door Lock Switch Return circuit in the Door Lock Switch connector.

Is the resistance below 10,000.0 ohms?

Yes

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

No

- Replace the Totally Integrated Power Module.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test