Check turbo valve protection fuse
- Make
- Alfa Romeo
- Model
- 159 Factory Service Manual
- Year
- 2005–2011
- Section
- Engine supercharging system › Check turbo valve protection fuse
CHECK TURBO VALVE PROTECTION FUSE
| STEP | CHECK TO BE PERFORMED | RESOLUTION IF THE CHECK IS NOT OK |
|---|---|---|
| 1 | Press the START/STOP button and turn off the engine. Reconnect any disconnected components Turn off all the electrical users. Press the START/STOP button. In the under-dashboard junction unit base insert a new fuse F35 (second from the right in the upper row) and check it cuts in. Move on to Step 3 | A temporary current overload has occurred in the system behind fuse F35. move on to Step 2 |
| 2 | If faults are present, restore the correct operation of the under-dashboard control unit wiring. Replace it if necessary. The test can be considered over | Replace the junction unit Op. 5505A18 |
| 3 | Press the START/STOP button. Disconnect the wiring harness connector from the brake pedal switch. Press the START/STOP button. Check that fuse F35 does not cut in | Move on to Step 6 |
| 4 | Connect a shunt cable with a fuse between sensor Pin 4 of the switch and the battery positive Check the brake lights do not come on | Replace the brake pedal switch |
| 5 | If faults are present, restore the correct operation of the wiring between the engine control unit and the brake pedal switch See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT Replace if necessary. The test is complete | Replace the engine management control unit |
| 6 | Press the START/STOP button. Disconnect the wiring harness connector from the air flow meter. Press the START/STOP button. Check that fuse F35 cuts in | Replace the debimeter |
| 7 | Press the START/STOP button. Disconnect the wiring harness connector from the accelerator pedal potentiometer Press the START/STOP button. Check that fuse F35 cuts in | Replace the accelerator pedal Op. 1068A20 ACCELERATOR PEDAL WITH BUILT-IN POTENTIOMETER - R.R |
| 8 | Press the START/STOP button. Disconnect the wiring harness connector from the temperature sensor and heater coil Press the START/STOP button. Check that fuse F35 cuts in | Replace the fuel heater Op. 1044D10 |
| 9 | Check and restore the correct electrical connections between the engine compartment junction unit and components tested See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT Replace the wiring if necessary | Replace the junction unit Op. 5505A13 ADDITIONAL JUNCTION UNIT IN ENGINE COMPARTMENT - R.R. |
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