DTC Detection Logic

DTC (On board display)	Trouble diagnosis name	DTC detecting condition	Possible causes
C1A13 (13)	STOP LAMP RLY FIX	If the stop lamp is not activated even though the ICC sensor integrated unit is transmitting a ICC brake hold relay drive signal If the stop lamp is activated even though the ICC sensor integrated unit is not transmitting a ICC brake hold relay drive signal	Stop lamp switch circuit ICC brake switch circuit ICC brake hold relay circuit Stop lamp switch ICC brake switch ICC brake hold relay Incorrect stop lamp switch installation Incorrect ICC brake switch installation ECM ABS actuator and electric unit (control unit)

NOTE:

If DTC "C1A13" is detected along with DTC "U1000", first diagnose the DTC "U1000". Refer to DTC LOGIC .