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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET2002AVALANCHE 2500, RWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 2 (ANTI-LOCK BRAKE SYSTEM)DIAGNOSTIC TESTSDTC C0223: RIGHT FRONT WHEEL SPEED SENSOR SIGNAL ERRATICDIAGNOSIS
2002 Chevrolet Avalanche 2500, RWD
DTC C0223: Right Front Wheel Speed Sensor Signal Erratic: Diagnosis
2002 Chevrolet Avalanche 2500, RWDSECTION Diagnosis
WARNING: This page does not describe the selected car, but rather 54 other vehicles, including the 1999 Oldsmobile Bravada, 1999 GMC Yukon, 1999 GMC Suburban, 1999 GMC Sonoma, and 1999 GMC Savana Special. However, it is still accessible from the selected car via links, so may be relevant.
- Perform diagnostic system check. See DIAGNOSTIC SYSTEM CHECK. After performing diagnostic system check, go to next step.
- Turn ignition off. Disconnect 4-pin EBCM harness connector and inspect for signs of corrosion or damage. Inspect wheel speed sensor, sensor cable and connectors for signs of damage or corrosion. If connections are okay, go to next step. If connections are damaged or corroded, go to step 6) .
- Using DVOM, check resistance between 4-pin EBCM harness connector terminals "C" and "E". Wiggle harness in various locations while monitoring DVOM reading. See WSS TEMPERATURE-VS-SENSOR RESISTANCE table. If resistance is as specified and does not fluctuate, go to step 5) . If not, go to next step.
- Disconnect wheel speed sensor harness connector. Check resistance between wheel sensor terminals "A" and "B". See WSS TEMPERATURE-VS-SENSOR RESISTANCE table. If resistance is as specified, go to step 7) . If not, go to step 8) .
- Reconnect all harness connectors. Remove right front tire, hub and rotor. Verify right front wheel speed sensor is securely mounted and tone wheel is in good condition. If damage is not found, go to step 9) . If damage is found, go to step 10) .
- Make necessary repairs.
- Repair open, short or high resistance in wheel speed sensor circuits.
- Replace wheel speed sensor. After replacing sensor, perform DIAGNOSTIC SYSTEM CHECK.
- Malfunction is intermittent. Inspect all connectors and harnesses for damage which may result in high resistance when all components are connected. See DIAGNOSTIC AIDS .
- Make necessary repairs.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.