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 MANUALSCADILLAC1991SEVILLE STSREPAIR AND DIAGNOSISBODY & FRAMEPOWER SEATSTROUBLE SHOOTINGELECTRICAL TROUBLESHOOTING HINTS
1991 Cadillac Seville STS
Electrical Troubleshooting Hints
1991 Cadillac Seville STSSECTION Electrical Troubleshooting Hints
- Check that connectors to Right and Left Seat Solenoid/Valve Assemblies are mated correctly.
- Check Circuit Breaker 23 by operating the power door locks.
- Check for open, pinched, kinked or restricted pneumatic lines.
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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.