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 MANUALSBUICK1998RIVIERAREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTMIRRORSPOWER MIRROR SYSTEMTROUBLE SHOOTING
1998 Buick Riviera
Trouble Shooting
1998 Buick RivieraSECTION Trouble Shooting
Before proceeding with specific testing, check the following for proper operation:
- Check courtesy lights for proper operation.
- Check fuses, and replace as necessary.
- Check and ensure grounds are clean and tight.
- Check for broken or partially broken wire inside insulation, which could cause system malfunction, but prove good in a continuity/voltage check with system disconnected. These circuits may be intermittent or resistive when loaded, and if possible, should be checked by monitoring voltage drop with system operational (under load).
- Check for proper installation of aftermarket electronic equipment.
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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.