Component Inspection

ABS/ESC
C1503 ESP switch error - Inspection/Repair:_:Component Inspection

Component Inspection

1. Ignition "OFF".
2. Disconnect ESC switch connector.
3. Measure resistance between terminal "4" of the ESC switch component connector and terminal "5" of the ESC switch component connector.
A. Specification : Approx. below 1Ohms (In case of pressing the ESC switch)
Approx. Infinity Ohms (In case of not pressing the ESC switch)




4. Is the measured resistance within specifications?
YES
1) Fault is intermittent caused by poor connection in ESC switch line or was repaired and HECU memory was not cleared. Go to "Verification of Vehicle Repair" procedure.
NO
1) Substitute with a known-good ESC switch and check for proper operation. If problem is corrected, replace ESC switch and then go to "Verification of Vehicle Repair" procedure.