VOLVO
ECM-P050327 - Vehicle Speed Sensor A Intermittent/Erratic/High. General Signal Failures. Signal rate of change above threshold
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 engine control module (ECM) calculates the car's acceleration from the speed signal that the brake control module (BCM) sends over the CAN network. The code is set when the change in acceleration is not plausible while cruise control is active, and cruise control is switched off while the fault is active. The code can only be confirmed with cruise control on. The fault is intermittent, so it may not be present right now.
Mulige årsaker
- Contact resistance, corrosion or a break in connections
- Fault on the CAN network
- Faulty speed sensor
- Faulty brake control module (BCM)
- Faulty engine control module (ECM)
Hva du kan gjøre
- 1With the ignition on, read the code and check whether it is still active
- 2Check that the fuses are intact
- 3Road test with cruise control: switch it on and check whether it engages and holds speed. If it works normally, the fault may be intermittent or not present right now
- 4If you have a diagnostic tool, follow the speed value in live data and check that it changes smoothly when the car accelerates and brakes
- 5Check the connections in the CAN network between the BCM and the ECM for loose, corroded or chafed areas
- 6If the fault returns, have a workshop with diagnostic equipment check the CAN network and the BCM. Do not work on the brake control module yourself
Symptomer du kan merke1
- Cruise control does not engage
Hva feilen kan påvirke1
- Cruise control is switched off while the fault is active
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