P0403 - EGR valve (sc to + vbat)
- Make
- Alfa Romeo
- Model
- 159 Factory Service Manual
- Year
- 2005–2011
- Section
- Examiner - diesel electronic management › P0403 - EGR valve (sc to + vbat)
Fault diagnosisP0403 - EGR valve (sc to + vbat)
P0403 - EGR VALVE (SC TO + VBAT)
The diagnostic equipment signals: Error P0403 (EGR valve), with detail "short circuit to +Vbatt"
This error is detected if there is a short circuit to positive in the circuit connected to Pin 60 of the junction unit.
As a result, the maximum power is reduced, the exhaust gas circulation valve is switched off and the supercharging pressure can longer be controlled.
| 1 | EGR valve operation check | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|---|---|---|---|
Check that the EGR valve is working properly by carrying out the | End of diagnosis |
Parts & tools for this job For 2005 Alfa Romeo 159
- PARTExhaust gasketSearch: Alfa Romeo 159 2005 exhaust gasket
- TOOLPenetrating oilSearch: penetrating oil
- TOOLOBD2 scannerSearch: OBD2 scanner
Links open Amazon search results in a new tab. As an Amazon Associate I earn from qualifying purchases.