Engine power supply fuse check
- Make
- Fiat
- Model
- Croma Factory Service Manual
- Year
- 2005–2010
- Section
- Instrument/gauge electrical circuits › Engine power supply fuse check
ENGINE POWER SUPPLY FUSE CHECK
| CHECK TO BE PERFORMED | RESOLUTION IF THE CHECK IS NOT OK | |
|---|---|---|
| 1 | Turn the ignition key OFF. Turn off all the electrical users. Fit a new fuse F16 in the engine compartment junction unit. See B001 ENGINE COMPARTMENT JUNCTION UNIT Turn the ignition key ON. Check that new fuse does not cut in. Move on to Step 3 | Replace relay T9 (it is the one in the middle in the bottom row) Op. 1060G88 DIESEL INJECTION SYSTEM RELAYS - R R Move on to Step 2 |
| 2 | Check the fault disappears. The test can be considered over | Restore the original relay and replace the junction unit in the engine compartment Op. 5505A13 ADDITIONAL JUNCTION UNIT IN ENGINE COMPARTMENT - R.R. |
| 3 | Start the engine and check that fuse F16 cuts in | A temporary current overload has occurred in the system behind fuse F16. |
| 4 | Turn the ignition key OFF. In the junction unit, remove relay T9 from the base unit (in the middle of the lower row) See B001 ENGINE COMPARTMENT JUNCTION UNIT Turn the ignition key ON. Connect a shunt cable with a fuse between pin 87 of the base unit for relay T9 and the battery positive, checking that it has not blown. | Replace relay T9 Op. 1060G88 DIESEL INJECTION SYSTEM RELAYS - R R |
| 5 | Disconnect the shunt connection. Disconnect the cable loom connector from control unit connector X See B001 ENGINE COMPARTMENT JUNCTION UNIT Connect a shunt cable with a fuse between pin 1 of the connector X and the battery positive, checking that the fuse for the connecting cable it has not blown. | Replace the engine compartment junction unit Op. 5505A13 ADDITIONAL JUNCTION UNIT IN ENGINE COMPARTMENT - R.R. |
| 6 | If faults are present, repair or if necessary replace the electrical wiring between the engine compartment junction unit and the starter motor | Replace the starter motor |
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