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.
System Testing: Notes
New Generation Star (NGS) Scan Tool (49-T088-0A0) is required for testing the power window system. See ON-DEMAND SELF-TEST. Perform a complete visual inspection of system. Check for damaged or disconnected wiring and for loose or damaged connectors. For individual component testing, see COMPONENT TESTS . If all connections and components are okay, go to test procedure for appropriate symptom. See TEST DIRECTORY .
| Symptom | Test No. | |
|---|---|---|
| One Touch Feature Inoperative | ||
| (DTCs B1398, B1400, B1404 And/Or B1410) | 1 | |
| Both Windows Inoperative | ||
| (DTCs B1398, B1404, B1405, B1408, B1410 And/Or B1478) | 2 | |
| Window Stuck/Binding (No DTCs) | 3 | |
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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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