Was bedeutet der Fehlercode ECM-P064322?

Diagnose und Fehlercodedefinition für ECM-P064322 (Volvo S80 (2007–), Volvo S80 (2007–), Volvo V70 (2008–)). Steuergerätereparatur bei OBD Tuning.

VOLVO

ECM-P064322 - Sensor Reference Voltage A Circuit High. General Signal Failures. Signal too high

System

Motorsteuergerät (ECM)

Volvo-Modelle, für die dieser Fehlercode gilt

Gilt für folgende Modelle:

5 Modelle

S80 (2007–), V70 (2008–), XC60 (2009–), XC70 (2008–), XC90 (2003–)

Modelle nach Baujahr und Motor anzeigen (8)

Was bedeutet der Fehlercode?

Reference voltage A to some of the engine's sensors is too high, which shows up as a signal that is too high. The engine control module (ECM) monitors the supply circuit and sets the code when the voltage is too low or too high. It is most often a knock-on fault from another code, so that code should be traced first.

Mögliche Ursachen

Fault in the fuel system, to be traced using the other fuel system fault codes

Was Sie tun können

1Read the fault code and check whether it is still active with the ignition on
2Check other stored codes for a short to battery voltage in a sensor supply; several of them can point to a shorted ground point
3Check the wiring to the oil quality sensor, the fuel pressure sensor and the swirl damper, which may be affected, for chafing and loose connectors
4Use a multimeter to check that the wires to the sensors are not short-circuited to supply voltage or ground, and check that the relevant fuses are intact

Symptome, die Sie bemerken können3

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

Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.