IG "OFF".
IG "ON".
Connect GDS and select "Diagnostic Trouble Codes(DTC)" mode.
Using a GDS, Clear DTC.
Select "Diagnostic Trouble Codes(DTC)" mode again.
Are any DTCs present ?
![]() | ▶ Substitute with a known-good PCM(TCM) and check for proper operation. If problem is corrected, replace PCM(TCM) and then go to "Verification of Vehicle Repair" procedure. ▶ If NG, replace HECU and then go to "Verification of Vehicle Repair" procedure. note ※ In a case of replacing HECU, operate following functions 1) "Steering Angle Sensor Calibration" for steering angle sensor offset correction (refer to C1261) - ESP(ESC) only 2) "Longituginal Sensor Calibration" for Longituginal sensor offset correction (refer to C1285) - ESP(ESC) only |
![]() | ▶ Fault is intermittent caused by faulty HECU, faulty PCM(TCM) or was repaired and HECU memory was not cleared. Go to "Verification of Vehicle Repair" procedure. |