VOLVO
ECM-P050327 - Vehicle Speed Sensor A Intermittent/Erratic/High. General Signal Failures. Signal rate of change above threshold
Układ
Sterownik silnika (ECM)
Modele Volvo, których dotyczy ten kod błędu
Dotyczy następujących modeli:
5 modeliS80 (2007–), V70 (2008–), XC60 (2009–), XC70 (2008–), XC90 (2003–)
Pokaż modele wg rocznika i silnika (6)
- Volvo S80 (2007–)2007–2009Tylko silnik: D5244T4, D5244T5
- Volvo V70 (2008–)2008–2009Tylko silnik: D5244T4, D5244T5
- Volvo XC60 (2009–)2009Wszystkie silniki oprócz: B6304T2
- Volvo XC70 (2008–)2008Wszystkie silniki oprócz: B6324S
- Volvo XC70 (2008–)2009Tylko silnik: D5244T4, D5244T5
- Volvo XC90 (2003–)2013–2014Tylko silnik: D5244T18, D5244T5
Co oznacza ten kod błędu?
The engine control module (ECM) calculates the car's acceleration from the speed signal that the brake control module (BCM) sends over the CAN network. The code is set when the change in acceleration is not plausible while cruise control is active, and cruise control is switched off while the fault is active. The code can only be confirmed with cruise control on. The fault is intermittent, so it may not be present right now.
Możliwe przyczyny
- Contact resistance, corrosion or a break in connections
- Fault on the CAN network
- Faulty speed sensor
- Faulty brake control module (BCM)
- Faulty engine control module (ECM)
Co możesz zrobić
- 1With the ignition on, read the code and check whether it is still active
- 2Check that the fuses are intact
- 3Road test with cruise control: switch it on and check whether it engages and holds speed. If it works normally, the fault may be intermittent or not present right now
- 4If you have a diagnostic tool, follow the speed value in live data and check that it changes smoothly when the car accelerates and brakes
- 5Check the connections in the CAN network between the BCM and the ECM for loose, corroded or chafed areas
- 6If the fault returns, have a workshop with diagnostic equipment check the CAN network and the BCM. Do not work on the brake control module yourself
Objawy, które możesz zauważyć1
- Cruise control does not engage
Na co może wpływać usterka1
- Cruise control is switched off while the fault is active
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.