12 · Diagnostics

K50 E.I. fault warning light on

Make: Fiat
Model: Seicento Factory Service Manual
Year: 1998–2010
Section: On-board instruments › K50 E.I. fault warning light on

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DiagnosisK50 E.I. fault warning light on

K50 E.I. fault warning light on

E.I. fault warning light on

When the engine is started, the E.I. fault warning light comes on for longer than 4 seconds (after running the ECU initial test, the warning light should turn off)

The "code" warning light comes on and off correctly.

If at the same time also the "code" warning light stays on, see table K51

If at the same time the "code" warning light does not come on when the engine is started, see table K55

Step	Validity	Operation to be performed	Test results
Step	Validity	Operation to be performed	All OK	Problems found	Intervention
1		CHECK WITH DIAGNOSTIC TOOL	Go to Step 2	Failed dialogue with the ECU	Restore connection between engine ECU and diagnostic socket (Wiring diagram: E5030 "PETROL ENGINE ELECTRONIC MANAGEMENT")
1		Connect diagnostic tool (Examiner or other tools) to the diagnostic socket. Check: – no errors in the engine ECU – plausibility of all parameters	Go to Step 2	Error detected in ECU	Continue as shown by the diagnostic tool
2		CHECK CORRECT OPERATION	End of test	Fault persists	Seek the fault starting from another symptom Check and, if required, replace the engine ECU PROCEDURE OP. 1056A82
2		Check the fault is no longer present	End of test	Fault persists

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Parts & tools for this job For 1998 Fiat Seicento

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