B259E

B259E-01-TRUNK/LIFTGATE DOOR HANDLE SENSE - GENERAL ELECTRICAL FAILURE





For a complete wiring diagram, refer to the Wiring Information.

NOTE:
This DTC is set when there is a malfunction with the Decklid Unlock Switch which is located In the CHMSL. This switch UNLOCKS only.

28-0000-00089-03-title-184780

- When Monitored:
Whenever the module is awake.

- Set Condition:
If the Liftgate/Decklid Handle Switch Sense circuit is low for longer than two minutes, this code will set.





Diagnostic Test

1. VERIFY THAT DIAGNOSTIC TROUBLE CODE (DTC) B259E-01 IS ACTIVE
1. Turn the ignition on.
2. Using the scan tool, record and erase the DTCs.
3. With the scan tool, select "Diagnostic Procedures", "Reset ECU" and "RFH" and perform the routine.
4. Wait two (2) minutes.
5. Using the scan tool, read the Active DTCs.

Does the scan tool display: B259E-01-TRUNK/LIFTGATE DOOR HANDLE SENSE - GENERAL ELECTRICAL FAILURE as active?

Yes
- Go To 2

No
- Press and release the Exterior Decklid Release Switch several times. If the switch ever sticks, replace the Release Switch. . Otherwise, test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals and poor pin fit.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

2. SHORTED SWITCH
1. Turn the ignition off.
2. Disconnect the Center Taillight Assembly harness connector.
3. Turn the ignition on.
4. With the scan tool, select "Diagnostic Procedures", "Reset ECU" and "RFH" and perform the routine.
5. Wait two (2) minutes.
6. Using the scan tool, read the Active DTCs.

Does the scan tool display: B259E-01-TRUNK/LIFTGATE DOOR HANDLE SENSE - GENERAL ELECTRICAL FAILURE as active?

Yes
- Go To 3

No
- Replace the Decklid Release Switch. .
- Perform the BODY VERIFICATION TEST. Body Verification Test.

3. (P30) LIFTGATE/DECKLID HANDLE SWITCH SENSE CIRCUIT SHORTED TO GROUND
1. Turn the ignition off.
2. Disconnect the RF-Hub C2 harness connector.
3. Measure the resistance between ground and the (P30) Liftgate/Decklid Handle Switch Sense circuit in the RF-Hub C2 harness connector.

Is the resistance below 20K Ohms?

Yes
- Repair the (P30) Liftgate/Decklid Handle Switch Sense circuit for a short to Ground.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No
- Go To 4

4. (P30) LIFTGATE/DECKLID HANDLE SWITCH SENSE CIRCUIT SHORTED TO THE (P39) LIFTGATE/DECKLID EXTERIOR HANDLE SWITCH RETURN CIRCUIT
1. Measure the resistance between the (P30) Liftgate/Decklid Handle Switch Sense circuit and the (P39) Liftgate/Decklid Exterior Handle Switch Return circuit in the RF-Hub C2 harness connector.

Is the resistance below 20K Ohms?

Yes
- Repair the (P30) Liftgate/Decklid Handle Switch Sense circuit for a short to the (P39) Liftgate/Decklid Exterior Handle Switch Return circuit.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No
- Replace the Radio Frequency Hub (RF-Hub). .

NOTE: If this vehicle is equipped with a Steering Column Lock Module (Export), it MUST be replaced also.

- Replace the Steering Column Lock Module. .
- Perform the RADIO FREQUENCY HUB (RF-HUB) VERIFICATION TEST. .