Driver Door Module

U0019-CAN B BUS - DRIVER DOOR MODULE





For a complete wiring diagram Refer to Diagrams/Electrical.

- When Monitored:

Continuously.

- Set Condition:

Whenever the CAN B Bus (+) or CAN B (-) circuit is open.





Diagnostic Test

1.CHECK FOR ACTIVE DTCS

With the scan tool, read the active DTC's.

Cycle the ignition switch from off to on at least five times, leaving the ignition on for a minimum of 90 seconds per cycle.

With the scan tool, read the active DTC's.

Does the scan tool display this DTC as active?

Yes

- Go To 2

No

- If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals.

2.CHECK FRONT CONTROL MODULE DTC's

With the scan tool, read Front Control Module active DTC's

Does the scan tool display any CAN B BUS DTC's - ACTIVE?

Yes

- Refer to Communications.

No

- Go To 3

3.(D55) CAN B BUS (+) CIRCUIT OPEN





Turn the ignition off.

Disconnect the negative battery cable.

Disconnect the Driver Door Module C4 connector.

Disconnect the Front Control Module C1 connector.

Measure the resistance of the (D55) CAN B Bus (+) circuit between the Front Control Module C1 connector and the Driver Door Module C4 connector.

Is the resistance below 2.0 ohms?

Yes

- Go To 4

No

- Repair the (D55) CAN B Bus (+) circuit for an open.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test

4.(D54) CAN B BUS (-) CIRCUIT OPEN





Measure the resistance of the (D54) CAN B Bus (-) circuit between the Front Control Module C1 connector and the Driver Door Module C4 connector.

Is the resistance below 2.0 ohms?

Yes

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

No

- Repair the (D54) CAN B Bus (-) circuit for an open.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test