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.
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HOMESERVICE MANUALSCHEVROLET2025TRAVERSE HIGH COUNTRY, FWDREPAIR AND DIAGNOSISBODY & FRAMEBODY, CAB CONTROL SYSTEMSSECONDARY AND CONFIGURABLE CUSTOMER CONTROLSDIAGNOSTIC INFORMATION AND PROCEDURESDRIVE MODE SWITCH MALFUNCTIONCIRCUIT/SYSTEM TESTING
2025 Chevrolet Traverse High Country, FWD
Circuit/System Testing
2025 Chevrolet Traverse High Country, FWDSECTION Circuit/System Testing
- Ignition OFF, disconnect the harness connector at the S36 Dimmer Switch.
- Verify a test lamp illuminates between terminal 8 and B+.
- If the test lamp does not illuminate
Repair the open or high resistance on circuit 3251 or the ground point for circuit 3251.
- Go to next step: If the test lamp illuminates
- If the test lamp does not illuminate
- Disconnect the X2 harness connector at the K9 Body Control Module.
- Test circuit 2202 for a short to ground.
- If a short to ground is found, repair the fault on the circuit.
- Go to next step: If a short to ground is not found.
- Test circuit 2202 for an open/high resistance.
- If an open/high resistance is found, repair the fault on the circuit.
- Go to next step: If an open/high resistance is not found.
- Test circuit 2202 for a short to B+.
- If a short to B+ is found, repair the fault on the circuit.
- Go to next step: If a short to B+ is not found.
- Replace the S36 Dimmer Switch.
- Operate the vehicle within the Conditions for Running the DTC, verify the DTC does not reset.
- If the DTC resets, replace the K9 Body Control Module.
- Go to next step: If the DTC does not reset.
- All OK.
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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.