B1829

B1829-TRUNK/GATE RELEASE CONTROL CIRCUIT SHORT- BCM





For a complete wiring diagram refer to Diagrams/Electrical.

- When Monitored:

Continuously for non power liftgate vehicles

- Set Condition:

When the Body Control Module senses a low output on the (P31) Liftgate Release Driver circuit for longer than 500 ms during a liftgate release actuation.





Diagnostic Test

1. DTC PRESENT

Ensure vehicle is unlocked before proceeding.

Turn the ignition on.

With the scan tool, record and erase DTC's.

With the scan tool, read DTC's.

Operate the Liftgate Release several times from the Liftgate Handle Switch while monitoring the scan tool.

Does the scan tool display B1829-TRUNK/GATE RELEASE CONTROL CIRCUIT SHORT?

Yes

- Go To 2

No

- Using the wiring diagram/schematic as a guide, inspect the wiring and connectors for an intermittent condition.
- Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test

2. BODY CONTROL MODULE - LIFTGATE RELEASE DRIVER SHORTED





Turn the ignition off.

Disconnect the Body Control Module C2 connector.

Measure the resistance between ground and the (P31) Liftgate Release Driver circuit.

Is the resistance below 3.5 ohms?

Yes

- Go To 3

No

- Disconnect the BCM harness connector(s). Check connectors - Clean/repair as necessary. If okay, replace the Body Control Module.
- Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test

3. (P31) LIFTGATE RELEASE DRIVER WIRE SHORT TO GROUND





Disconnect the Liftgate Latch connector.

Measure the resistance between ground and the (P31) Liftgate Release Driver circuit.

Is the resistance below 100.0 ohms?

Yes

- Repair the (P31) Liftgate Release Driver circuit for a short to ground.
- Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test

No

- Replace the Liftgate Latch Assembly.
- Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test