Operation CHARM: Car repair manuals for everyone.

Component Inspection





Traction Control System
C1206 Wheel Speed Sensor Rear-LH Open/Short - Component Inspection

Component Inspection

1. Ignition "OFF".
2. Engine "ON".
3. Start and drive vehicle in gear and maintain vehicle speed is approx. 10km/h or more (6mph or more)
4. Does warning lamp remain On?
YES
1) Substitute with a known-good HECU and check for proper operation. If problem is corrected, replace HECU and then go to "Verification of Vehicle Repair" procedure.
NO
1) Fault is intermittent caused by open or short of wheel speed sensor(RL) harness, faulty wheel speed sensor and/or faulty HECU or was repaired and HECU memory was not cleared. Go to the applicable troubleshooting procedure.