B18E1-12

B18E1-12-POWER LIFTGATE FRONT ZONE SWITCH - CIRCUIT SHORT TO BATTERY





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

- When Monitored:
Whenever the Power Liftgate Module is awake.

- Set Condition:
When the Power Liftgate Module senses a voltage over 5.01 volts on the (G25) Liftgate Release Switch Sense circuit for longer than 15 seconds, this code will set.





1. DTC PRESENT
1. With the scan tool, record the DTCs.
2. Erase the DTCs.
3. Turn the ignition off, wait 105 seconds, then turn the ignition on.
4. Operate the liftgate several times from the front switch.
5. With the scan tool, read the Active DTCs.

Does the scan tool display; B18E1-12-POWER LIFTGATE FRONT ZONE SWITCH - CIRCUIT SHORT TO BATTERY?

Yes

- Go To 2

No

- 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 correct pin tension.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

2. FRONT POWER LIFTGATE SWITCH SHORTED




1. Disconnect the Front Power Liftgate Switch harness connector in the overhead console.
2. Erase the DTCs.
3. Turn the ignition off, wait 15 seconds, then turn the ignition on.
4. With the scan tool, read the DTCs.

Does the scan tool display; B18E1-12-POWER LIFTGATE FRONT ZONE SWITCH - CIRCUIT SHORT TO BATTERY?

Yes

- Go To 3

No

- Replace the Front Power Liftgate Switch (Overhead Console). Front Overhead Console - Removal.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

3. (G25) LIFTGATE RELEASE SWITCH SENSE CIRCUIT SHORTED TO VOLTAGE




1. Disconnect the Power Liftgate Module C2 harness connector.
2. Measure the voltage between ground and the (G25) Liftgate Release Switch Sense circuit.

Is there any voltage present?

Yes

- Repair the (G25) Liftgate Release Switch Sense circuit for a short to voltage.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Go To 4

4. (G25) LIFTGATE RELEASE SWITCH SENSE CIRCUIT OPEN




1. Turn the ignition off.
2. Measure the resistance of the (G25) Liftgate Release Switch Sense circuit between the Switch connector and the Power Liftgate C2 harness connector.

Is the resistance below 2.0 Ohms?

Yes

- Replace the Power Liftgate Module. Power Liftgate Control Module - Removal.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Repair the (G25) Liftgate Release Switch Sense circuit for an open.
- Perform the BODY VERIFICATION TEST. Body Verification Test.