Mil warning light stays on (engine starts)
- Make
- Alfa Romeo
- Model
- Brera and Spider Factory Service Manual
- Year
- 2005–2010
- Section
- Instrument panel › Mil warning light stays on (engine starts)
‹ Prev Mil warning light not working (remains off before starting)Next › Display does not show headlamp alignment data
Fault diagnosisMil warning light stays on (engine starts)
MIL WARNING LIGHT STAYS ON (ENGINE STARTS)
The M.I.L. warning light remains on with the engine running
the M.I.L. warning light is switched on by means of an earth command from the Engine Management Node.
| 1 | CHECK USING DIAGNOSTIC EQUIPMENT | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|---|---|---|---|
| Connect the Examiner diagnostic equipment to the diagnostic connector and check that there are no faults at the Engine Management Node | Move on to Step 2 | Presence of faults in the system | Proceed as instructed by the diagnostic tester | |
| 2 | CHECK USING DIAGNOSTIC EQUIPMENT | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
| Keeping the diagnostic equipment connected to the diagnostic socket and check the operation of the engine failure warning light through active diagnosis at the Engine Management Node | Move on to Step 6 | The warning light does not flash | Move on to Step 3 | |
| 3 | WARNING LIGHT OPERATION CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
| Disconnect the Engine Management Node from the vehicle side wiring and check that the warning light goes out | Move on to Step 6 | The warning light does not go out | Move on to Step 4 | |
| 4 | ELECTRICAL SYSTEM CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
Check the insulation of the warning light control cable between the Engine Management Node and the Instrument Panel Node | Move on to Step 5 | Cable short circuited to earth | Restore the electrical connections. | |
| 5 | CHECK ON CORRECT OPERATION | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
| Check that the fault is no longer present | End of diagnosis | Fault persists | Replace the instrument panel and move on to Step 6 | |
| 6 | CHECK ON CORRECT OPERATION | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
| Check that the fault is no longer present | End of diagnosis | Fault persists | Replace the engine management control unit Op. 1056F82 CONTROL UNIT SINGLE OF INJECTION IGNITION SYSTEM R R |
‹ Prev Mil warning light not working (remains off before starting)Next › Display does not show headlamp alignment data
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