VOLVO
ECM-P252A38 - Engine Oil Quality Sensor Circuit. FM (Frequency Modulated) / PWM (Pulse Width Modulated) Failures. Signal frequency incorrect
System
Motorsteuergerät (ECM)
Volvo-Modelle, für die dieser Fehlercode gilt
Gilt für folgende Modelle:
5 ModelleS80 (2007–), V70 (2008–), XC60 (2009–), XC70 (2008–), XC90 (2003–)
Modelle nach Baujahr und Motor anzeigen (6)
- Volvo S80 (2007–)2007–2009Nur Motor: D5244T4, D5244T5
- Volvo V70 (2008–)2008–2009Nur Motor: D5244T4, D5244T5
- Volvo XC60 (2009–)2009Alle Motoren außer: B6304T2
- Volvo XC70 (2008–)2008Alle Motoren außer: B6324S
- Volvo XC70 (2008–)2009Nur Motor: D5244T4, D5244T5
- Volvo XC90 (2003–)2013–2014Nur Motor: D5244T18, D5244T5
Was bedeutet der Fehlercode?
The ECM monitors engine oil level and temperature with a combined sensor. The code concerns an incorrect frequency of the PWM signal from that sensor and is set when the signal does not match what is expected. The fault can lie in the wiring or in the sensor.
Mögliche Ursachen
- Supply open or shorted to voltage, or the signal wire is
- Contact resistance or oxidation in the connections
- Damaged oil level sensor
- Voltage supply short-circuited to ground
- Signal wire short-circuited to ground
- Intermittent open circuit in the signal wire
Was Sie tun können
- 1Read the fault status with the ignition on and see whether the fault is still active
- 2Check that the relevant fuses are intact
- 3Check the connector to the combined sensor for contact resistance and oxidation
- 4Use a multimeter to check that the signal wire from the sensor has no open circuit and is not short-circuited to ground or plus
- 5If the fault remains after these checks, have a workshop with diagnostic equipment check the combined sensor
Symptome, die Sie bemerken können1
- No noticeable symptoms for the driver
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.