Connect GDS to DLC(Data Link Cable).

Warm up the engine to normal operating temperature.

Start the vehicle slowly.

Compare vehicle speed on the CLU(Cluster Module) with vehicle speed of "Current Data" on "AHLS" with GDS.

Compare vehicle speed on the CLU(Cluster Module) with vehicle speed of "Current Data" on "ESP" with GDS.

Fig.1) Current Data of "AHLS" after vehicle start

Fig.2) Speedometer on the CLU(Cluster Module)

Fig.3) Current Data of "ESP" after vehicle start

Are expressed values from current data and speedometer similar?

	▶ The system is operating correctly at this time. Go to "Verification of Vehicle Repair" procedure.
	▶ Compare speedometer with ESP current data. If it operates properly, replace AHLS ECU. Otherwise, check DTC about cluster module with GDS and inspect concerned problem.