Ignition ON & Engine OFF.
Connect GDS to Data Link Connector(DLC).
Selet "Diagnostic Trouble Codes(DTCs)"mode and monitor "DTC Status" parameter.
Clear recorded DTC using GDS.
Ignition switch OFF ↔ Ignition switch ON 2~3 times and Selet "Diagnostic Trouble Codes(DTCs)"mode and monitor "DTC Status" parameter.
Is the DTC present ?
![]() | ▶ PCM/TCM's ROM or DATA is changed by reprogram illegally. ▶ Substitute with a known-good PCM/TCM and check for proper operation.If the problem is corrected, replace PCM/TCM and then go to "Verification of Vehicle Repair" procedure. |
![]() | ▶ Fault is intermittent caused by poor contact of PCM/TCM and DTC was not cleared. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair as necessary and go to "Verification Vehicle Repair" procedure. |