B259E
B259E-00-TRUNK/LIFTGATE DOOR HANDLE LOCK SENSE
For a complete wiring diagram, refer to the Wiring Information.
NOTE: This DTC is set when there is a malfunction with the PEM Lock/Unlock Switch on the License Plate Lamp Bar.
- When Monitored:
Whenever the module is awake.
- Set Condition:
If the PEM Lock/Unlock Switch circuit in the License Plate Lamp Bar is high for longer than 30 seconds, this code will set.
1. VERIFY THAT DIAGNOSTIC TROUBLE CODE (DTC) B259E-00 IS ACTIVE
1. Using the Start button, turn the ignition on.
2. Using the scan tool, record and erase the DTCs.
3. Open the left front window.
4. Turn the ignition off and close all doors.
5. Have the FOBIK outside the car and within six (6) feet from the Liftgate Lamp Bar.
6. Lock and Unlock the liftgate using the push button toggle switch on the Liftgate Lamp Bar several times.
7. Using the Start button, turn the ignition on.
8. Using the scan tool, read the Active DTCs.
9. Wait 30 seconds.
Does the scan tool display: B259E-00-TRUNK/LIFTGATE DOOR HANDLE LOCK SENSE as active?
Yes
- Go To 2
No
- Press and release the Power Liftgate Lock and Unlock Switch several times. If the switch ever sticks, replace the Liftgate License Plate Lamp Bar. Exterior Handle Lamp Bar - Removal.
- Perform the BODY VERIFICATION TEST. Body Verification Test.
2. SHORTED SWITCH
1. Using the scan tool, record and erase the DTCs.
2. Turn the ignition off.
3. Disconnect the License Plate Lamp Bar harness connector.
4. Turn the ignition on.
5. Using the scan tool, read the Active DTCs.
6. Wait 30 seconds.
Does the scan tool display: B259E-00-TRUNK/LIFTGATE DOOR HANDLE LOCK SENSE as active?
Yes
- Go To 3
No
- Replace the Liftgate License Plate Lamp Bar. Exterior Handle Lamp Bar - Removal.
- Perform the BODY VERIFICATION TEST. Body Verification Test.
3. PEM LIFTGATE LOCK/UNLOCK CIRCUIT SHORTED TO VOLTAGE
1. Disconnect the Passive Entry Module C1 harness connector.
2. Turn the ignition on.
3. Measure the voltage between ground and the (P30) PEM Liftgate Lock/Unlock Switch Sense circuit in the PEM C1 harness connector.
4. Measure the voltage between ground and the (P39) PEM Liftgate Lock/Unlock Switch Return circuit in the PEM C1 harness connector.
Is there any voltage present in either or both circuits?
Yes
- Go To 4
No
- Go To 6
4. (P39) PEM LIFTGATE LOCK/UNLOCK SWITCH RETURN CIRCUIT SHORTED TO VOLTAGE
1. Disconnect the License Plate Lamp Bar harness connector.
2. Measure the voltage between ground and the (P39) PEM Liftgate Lock/Unlock Switch Return circuit in the License Plate Lamp Bar harness connector.
Is there any voltage present?
Yes
- Repair the short to voltage in the (P39) PEM Liftgate Lock/Unlock Switch Return circuit.
- Perform the BODY VERIFICATION TEST. Body Verification Test.
No
- Go To 5
5. (P30) PEM LIFTGATE LOCK/UNLOCK SWITCH SENSE CIRCUIT SHORTED TO VOLTAGE
1. Measure the voltage between ground and the (P30) PEM Liftgate Lock/Unlock Switch Sense circuit in the License Plate Lamp Bar harness connector.
Is there any voltage present?
Yes
- Repair the short to voltage in the (P30) PEM Liftgate Lock/Unlock Switch Sense circuit.
- Perform the BODY VERIFICATION TEST. Body Verification Test.
No
- Replace the License Plate Lamp Bar Assembly. Exterior Handle Lamp Bar - Removal.
- Perform the BODY VERIFICATION TEST. Body Verification Test.
6. PEM LIFTGATE LOCK/UNLOCK SWITCH SHORTED TO VOLTAGE
1. Turn the ignition off.
2. Re-connect the License Plate Lamp Bar harness connector.
3. Turn the ignition on.
4. While measuring the voltage in the following step, have a helper press and hold the PEM Liftgate Lock/Unlock Switch button.
5. Measure the voltage between ground and the (P30) PEM Liftgate Lock/Unlock Switch Sense circuit in the PEM C1 harness connector.
6. Measure the voltage between ground and the (P39) PEM Liftgate Lock/Unlock Switch Return circuit in the PEM C1 harness connector.
Is there any voltage present in either or both circuits while the switch is being pressed?
Yes
- Replace the License Plate Lamp Bar Assembly. Exterior Handle Lamp Bar - Removal.
- Perform the BODY VERIFICATION TEST. Body Verification Test.
No
- Replace the Passive Entry Module. Passive Entry Module - Removal.
- Perform the BODY VERIFICATION TEST. Body Verification Test.