VOLVO
ECM-P050382 - Vehicle Speed Sensor A Intermittent/Erratic/High. Bus Signal / Message Failures. Alive / sequence counter incorrect / not updated
System
Motorsteuergerät (ECM)
Volvo-Modelle, für die dieser Fehlercode gilt
Gilt für folgende Modelle:
1 ModellS60 (2011–)
Modelle nach Baujahr und Motor anzeigen (1)
Was bedeutet der Fehlercode?
The brake control module (BCM) sends the speed message on the CAN network with a counter that should change for each new message. If the counter is wrong or stops changing, the engine control module (ECM) finds that the signal cannot be trusted and sets the code. The code is also stored in the BCM, where diagnosis is carried out. The fault is intermittent.
Mögliche Ursachen
- Incorrect speed information sent on to the BCM
Was Sie tun können
- 1Read the codes in the brake control module and the engine control module and note which are stored
- 2Diagnose the fault in the brake control module, as it sends the signal. Repair the fault there, then clear the code in the engine control module
- 3Check that the connectors in the CAN connections to the brake control module are secure and free from corrosion
- 4If you have a diagnostic tool, read the live data for the speed value from the brake control module and check that the value updates smoothly during a short road test
- 5Road test the car and see whether the code returns once the fault is repaired
- 6Do not work on the brake control module yourself; have a workshop carry out the checks that need diagnostic equipment
Symptome, die Sie bemerken können3
- Cruise control does not engage
- Cruise control does not hold the set speed and disengages
- Autostart does not work
Was der Fehler beeinflussen kann1
- The speed value from the brake control module is replaced by a default value
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.