Component Inspection
- Ignition "OFF".
- Ignition "ON"
- Start and drive vehicle in gear and maintain vehicle speed is approx. 12 km/h or more (7.5 mph or more)
- Does warning lamp remain On?
YES : --> 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 : --> Fault is intermittent caused by faulty HECU or was repaired and HECU memory was not cleared. Go to the applicable troubleshooting procedure.