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 MANUALSOLDSMOBILE1998AURORA V8-4.0L VIN CREPAIR AND DIAGNOSISBRAKES AND TRACTION CONTROLANTILOCK BRAKES / TRACTION CONTROL SYSTEMSTESTING AND INSPECTIONINITIAL INSPECTION AND DIAGNOSTIC OVERVIEWDESCRIPTION OF ON-BOARD DIAGNOSTICSELECTROMAGNETIC INTERFERENCE
1998 Oldsmobile Aurora V8-4.0L VIN C
Electromagnetic Interference
1998 Oldsmobile Aurora V8-4.0L VIN CSECTION Electromagnetic Interference
ABS components are sensitive to Electromagnetic Interference (EMI).
Perform the following checks if an intermittent malfunction is suspected:
^ Check for proper installation of the wiring harnesses resulting from add-on options.
^ Visually inspect the wheel speed sensor and the toothed ring for the following conditions:
- Looseness
- Damage (Replace any damaged components)
- Foreign material accumulation (Remove any foreign material)
- Proper mounting (Properly attach all of the components).
^ Check for proper routing of the front wheel speed sensor wiring near the spark plug wires.
^ Use the DMM J 39200 in order to measure the resistance of the spark plug wires.
If the displays J 39200 Infinite or greater than 30,000 ohms for any wire, replace the spark plug wires.
^ While test driving the vehicle, monitor the Scan Tool wheel speeds. If any wheel speed drops or becomes erratic, refer to the appropriate wheel speed DTC.
Perform the following checks if an intermittent malfunction is suspected:
^ Check for proper installation of the wiring harnesses resulting from add-on options.
^ Visually inspect the wheel speed sensor and the toothed ring for the following conditions:
- Looseness
- Damage (Replace any damaged components)
- Foreign material accumulation (Remove any foreign material)
- Proper mounting (Properly attach all of the components).
^ Check for proper routing of the front wheel speed sensor wiring near the spark plug wires.
^ Use the DMM J 39200 in order to measure the resistance of the spark plug wires.
If the displays J 39200 Infinite or greater than 30,000 ohms for any wire, replace the spark plug wires.
^ While test driving the vehicle, monitor the Scan Tool wheel speeds. If any wheel speed drops or becomes erratic, refer to the appropriate wheel speed DTC.
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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.