Connect GDS and select “Diagnostic Trouble Codes(DTC)” mode.

Confirm that "DTC Readiness Flag" indicates "COMPLETED". If not, drive the vehicle within conditions noted in the freeze frame data or enable conditions.

Read “DTC Status” parameter in DTC menu of the GDS.

Is parameter displayed "History(Not Present) fault" ?

	▶ Fault is intermittent caused by poor connection and/or HECU's connector or was repaired and HECU memory was not cleared. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to "Verification of Vehicle Repair" procedure.
	▶ Go to next step.

Check for improper installation of EMS/TCU/ESP(ESC).

Connect GDS to Data Link Connector(DLC).

IG "ON".

Perform variant code reset in "Vehicle S/W Management" menu of the GDS. (Fig.1)

Disconnect GDS.

IG "OFF" and wait for about 10 seconds, and then IG "ON". Go to "Component Inspection"Procedure.