Faults
Fault or fault combination
#Fault code
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P0403
Valve for exhaust gas recirculation (N18) - malfunction
and
Fault code can be cleared, but is stored once again immediately, no actuator check is possible for this valve.
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Engine doesn't start, there is no communication between the ecu and the diagnostic tool
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Engine switches off while driving, does not start anymore. There is no communication between the ECU and the diagnostics device.
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| Other faults on request |
Important repair hints (!)
Often, issues occur with the power supply of the engine control unit. We always recommend to check:
- 12 V power supply
- electrical earthing (oxidised mass points)
- main relay
