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
- TEST FOR INTERMITTENT CONDITION
- Turn the ignition on.
- Turn the Courtesy Lamps on.
- With the scan tool, read DTCs.
Does the scan display this DTC as active?
Yes
- Go to step 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. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
- CHECK THE (M24) COURTESY LAMPS DRIVER CIRCUIT FOR A SHORT TO GROUND
- Turn the ignition off.
- Disconnect the Dome Lamp.
- Disconnect the Cargo Lamp (4 door).
- Disconnect the Cluster C2 harness connector.
- Measure the resistance between ground and the (M24) Courtesy Lamp Driver circuit.
Is the resistance below 5.0 Ohms?
Yes
- Repair the (M24) Courtesy Lamp Driver circuit for a short to ground.
- Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
No
- Go to step 3
- CHECK THE (M24) COURTESY LAMPS DRIVER CIRCUIT FOR AN OPEN
- Measure the resistance of the (M24) Courtesy Lamp Driver circuit.
Is the resistance above 5 Ohms?
Yes
- Repair the (M24) Courtesy Lamp Driver circuit for an open.
- Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure
No
- Replace the Cluster in accordance with the Service Information.
- Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
- Measure the resistance of the (M24) Courtesy Lamp Driver circuit.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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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