VOLVO
ECM-P040485 - Exhaust Gas Recirculation Control Circuit Range/Performance. Bus Signal / Message Failures. Signal above allowable range
System
Motorstyring (ECM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
5 modellerS80 (2007–), V70 (2008–), XC60 (2009–), XC70 (2008–), XC90 (2003–)
Vis modeller per årsmodell og motor (6)
- Volvo S80 (2007–)2007–2009Kun motor: D5244T4, D5244T5
- Volvo V70 (2008–)2008–2009Kun motor: D5244T4, D5244T5
- Volvo XC60 (2009–)2009Alle motorer unntatt: B6304T2
- Volvo XC70 (2008–)2008Alle motorer unntatt: B6324S
- Volvo XC70 (2008–)2009Kun motor: D5244T4, D5244T5
- Volvo XC90 (2003–)2013–2014Kun motor: D5244T18, D5244T5
Hva betyr feilkoden?
The fault is set when the engine control module finds a fault in the intake control during soot burning and the signal is above the permitted limit. The code is named as a bus or message fault, but the condition concerns the intake control during soot burning.
Mulige årsaker
- Fault code ECM-P040484 may have the same cause and should be read at the same time
- Air leak in the intake system
- Contact resistance or oxidation in the connectors
- Sticking EGR valve
- Damaged throttle unit
Hva du kan gjøre
- 1Read out any other stored fault codes first and deal with them before going further
- 2Check that the EGR valve is fitted securely and that its connector is free from oxidation
- 3Check that the intake air does not leak, for example at hoses and connections
- 4Check that the throttle unit connector is secure and that the damper is not sticking
- 5Look for damage to the EGR valve's O-ring and its gasket
- 6If the fault remains, have a workshop check the throttle unit and the intake system
Symptomer du kan merke1
- No noticeable symptoms for the driver
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