Was bedeutet der Fehlercode ECM-P21252F?

Diagnose und Fehlercodedefinition für ECM-P21252F (Volvo S60 (2011–), Volvo S80 (2007–), Volvo S80 (2007–)). Steuergerätereparatur bei OBD Tuning.

VOLVO

ECM-P21252F - Throttle/Pedal Position Sensor/Switch E Circuit. General Signal Failures. Signal erratic

System

Motorsteuergerät (ECM)

Volvo-Modelle, für die dieser Fehlercode gilt

Gilt für folgende Modelle:

3 Modelle

S60 (2011–), S80 (2007–), V70 (2008–)

Modelle nach Baujahr und Motor anzeigen (9)

Was bedeutet der Fehlercode?

The central electronic module (CEM) has sent a fault message to the engine control module (ECM) reporting that the accelerator pedal signal is erratic. The signal itself may be unstable, or the CAN communication between the modules may be faulty. This is a follow-on code from CEM, so the CEM fault should be fixed first and this code erased afterwards.

Mögliche Ursachen

Unstable signal from the accelerator pedal sensor
Fault in the central electronic module (CEM)
Fault in the CAN communication between CEM and the engine control module

Was Sie tun können

1Read the fault codes in the central electronic module (CEM) first, as the root fault is there
2Troubleshoot and fix the CEM faults as needed, starting with fuses and connectors
3Erase the code in the engine control module once the CEM faults are gone, then road test the car to check that it does not come back
4If you have a diagnostic tool, check whether the accelerator pedal value in live data jumps or stutters as the pedal is moved slowly up and down

Symptome, die Sie bemerken können2

Poor response from the accelerator pedal
Cruise control does not work at all

Was der Fehler beeinflussen kann1

The accelerator pedal is out of action when the brake pedal is pressed

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