194002893 - Y053 P0683 - PREHEATING CONTROL UNIT (FEEDBACK)

The diagnostic equipment signals: Error P0683 (pre-heating control unit (feedback)).

This error is detected if there is a problem in the pre-heating circuit.

1	Check on operation of heater plugs	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check that the heater plugs are working properly, by carrying out the test    See Test 5520CA GLOW PLUGS FUNCTIONAL TEST	End of diagnosis