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 DIAGNOSISBRAKESANTI-LOCK BRAKE SYSTEM WITH TRACTION CONTROL SYSTEMDIAGNOSIS & TESTINGPRE-DIAGNOSTIC INSPECTION
1998 Buick Riviera
Pre-Diagnostic Inspection
1998 Buick RivieraSECTION Pre-Diagnostic Inspection
When checking potential ABS/TCS faults, check following before performing diagnostic trouble code testing:
- Check ABS fuse in instrument panel fuse block.
- Check HZRD/STOP fuse in rear fuse block located under rear seat.
- Check ABS MAIN and ABS PUMP MOTOR fuses in right underhood relay center.
- Check all ABS/TCS wiring harness connectors for proper engagement, loose wires or terminals and/or corrosion. Check harness routing; pay particular attention to wheel speed sensor wiring harness routing.
- Ensure parking brake switch is functioning properly.
- Ensure brake switches are properly adjusted.
- Check brake system for leaks and proper fluid level.
- Check ABS/TCS ground circuit for clean tight connections. Grounds are located under left kick panel trim, left side of engine compartment on frame rail near EBCM/EBTCM, and left side of engine compartment on frame rail near strut tower.
- Always perform diagnostic system check before diagnosing DTCs. See DIAGNOSTIC SYSTEM CHECK .
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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.