Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Diagnostic Test
- CHECK FOR ACTIVE DTCS
- Cycle the ignition on.
- With the scan tool, read Power Liftgate Module DTCs.
Does the scan tool display this DTC as active?
Yes
- Go To 2
No
- The condition that caused this code to set is not present at this time. Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced, pinched, and partially broken wires. Also inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals.
- Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
- VERIFY BCM IS ACTIVE ON THE CAN BUS
- With the scan tool, select ECU View.
- Verify that the BCM is active on the bus.
Is the BCM active on the bus?
Yes
- Go To 3
No
- Refer to NO RESPONSE FROM ECU and perform the No Response from BCM diagnostic procedure.
- Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
- DTCS STORED OR ACTIVE IN THE BCM
- With the scan tool, read BCM DTCs.
Are any DTCs active or stored in the BCM?
Yes
- Refer to DIAGNOSTIC CODE INDEX and perform the appropriate diagnostic procedure.
No
- Replace and program the Power Liftgate Module in accordance with the Service Information. (Refer to MODULE, POWER LIFTGATE (PLGM), REMOVAL )
- Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
- With the scan tool, read BCM DTCs.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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