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.
1998 Cadillac Seville SLSFACTORY OEM SERVICE PROCEDURE
Power Windows Inoperative
- Perform power window system check. See POWER WINDOW SYSTEM CHECK under TROUBLE SHOOTING. After performing system check, go to next step.
- Remove PWR WDO circuit breaker located in rear junction block. Using DVOM, measure resistance between circuit breaker terminals. If resistance is 0-2 ohms, go to step 4). If resistance is not 0-2 ohms, go to next step.
- Replace PWR WDO circuit breaker located in rear junction block. Recheck system operation.
- Using DVOM, measure voltage between ground and rear junction block connector PWR WDO circuit breaker terminals (Orange wires). If battery voltage is present, go to next step. If battery voltage is not present, see appropriate POWER DISTRIBUTION article in WIRING DIAGRAMS for diagnosis.
- Repair suspect circuit No. 1040 (Orange wire) for open or high resistance at rear junction block. Recheck system operation.
Factory Service Tools
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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.