16 · Diagnostics

K40 Generator warning light not working

Fault diagnosisK40 Generator warning light not working

With the ignition key in the ON position, the recharging warning light does not come on with the engine switched off.

NOTA: If the warning light remains on with the engine started up, this indicates that the alternator is faulty and is not charging the battery

Step	Test procedure	Result	Action
1	ALTERNATOR CHECK Check: the operation of the alternator the connection between the alternator and the rev counter (Wiring diagram E5010 IGNITION AND RECHARGING ).	OK	Move onto step 2
		Connections broken	Restore the connections ( End of diagnosis
		Fault in the alternator	Overhaul or replace the alternatorOp. 5530A18 End of diagnosis
2	REV COUNTER CHECK Check that the rev counter is working see DESCRIPTION AND OPERATION: 5560 Instruments (see 5560F)	OK	Move onto step 3
2		Instrument not working	Replace the rev counter Op. 5560B03 End of diagnosis
3	CHECK CORRECT OPERATION Check that the fault is no longer present	OK	End of diagnosis
3		Fault persists	Incorrect selection of diagnostic procedure

Parts & tools for this job For 1997 Alfa Romeo 156

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