Diagnostic Procedure

DIAGNOSTIC PROCEDURE

Step	Check	Yes	No
1 CHECK STOP LIGHT SWITCH. Turn the ignition switch to OFF. Disconnect the stop light switch connector. Measure the resistance of stop light switch terminals. Connector & terminal (B65) No. 2 - No. 3:	Is the resistance 1 MΩ or more when switch is OFF (when pedal is not depressed)?	Go to step 2 .	Replace the stop light switch. < Refer to STOP LIGHT SWITCH . >
2 CHECK STOP LIGHT SWITCH HARNESS. Disconnect the connector from the VDCCM&H/U. Measure the resistance between VDCCM&H/U connector and chassis ground. Connector & terminal (B310) No. 3 - Chassis ground:	Is the resistance less than 1 MΩ?	Go to step 3 .	Repair the stop light switch circuit.
3 INTERVIEW CUSTOMERS. Make sure that the operation was performed in which accelerator pedal and brake pedal were depressed simultaneously (with depressing brake pedal with left foot).	Were the acceleration pedal and brake pedal depressed simultaneously?	System is normal. (DTC may be recorded while brake is applied during driving.)	Go to step 4 .
4 CHECK VDCCM&H/U. Connect all connectors. Clear the memory. < Refer to CLEAR MEMORY MODE . > Perform the Inspection Mode. < Refer to INSPECTION MODE . > Read the DTC.	Is the same DTC displayed?	Replace the VDCCM&H/U. < Refer to VDC CONTROL MODULE AND HYDRAULIC CONTROL UNIT (VDCCM&H/U) . >	Go to step 5 .
5 CHECK OTHER DTC DETECTION.	Is any other DTC displayed?	Perform the diagnosis according to DTC. < Refer to LIST OF DIAGNOSTIC TROUBLE CODE (DTC) . >	Temporary poor contact occurs.