VOLVO
ECM-P064221 - Sensor Reference Voltage A Circuit Low. General Signal Failures. Signal too low
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 (8)
- Volvo S80 (2007–)2007–2009Kun motor: D5244T4, D5244T5
- Volvo S80 (2007–)2010–2011Kun motor: D4164T
- Volvo V70 (2008–)2008–2009Kun motor: D5244T4, D5244T5
- Volvo V70 (2008–)2010–2011Kun motor: D4164T
- 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?
Reference voltage A to some of the engine's sensors is too low, which shows up as a signal that is too low. The engine control module (ECM) monitors the supply circuit and sets the code when the voltage is too low or too high. Tracing goes through the other fuel system codes.
Mulige årsaker
- Fault in the fuel system, to be traced through the other fuel system codes
Hva du kan gjøre
- 1Read the fault code and check whether the fault is still active with the ignition on
- 2Trace the other fuel system fault codes first, since tracing this code is done through them
- 3Where possible, check the relevant functions of the car with the buttons, controls or a test drive to see whether the fault affects them
- 4Check the connectors and wiring to the sensors; with a multimeter, look for open circuits and shorts to ground or supply voltage
Symptomer du kan merke3
- The car performs poorly and lacks power, especially at take-off
- The engine hesitates or surges during acceleration, during deceleration or at steady speed
- Warning symbol and text message in the display
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