VOLVO
ECM-A038 - Speed signal, front wheel pair. Defective signal
Układ
Sterownik silnika (ECM)
Modele Volvo, których dotyczy ten kod błędu
Dotyczy następujących modeli:
3 modeleC30 (2007–2013), S40 (2004–2013), V50 (2004–2013)
Pokaż modele wg rocznika i silnika (3)
Co oznacza ten kod błędu?
The engine control module calculates vehicle speed using, among other things, the wheel sensors on the front wheels. If the calculated speed does not match the vehicle speed available on the CAN network, the code is set. Because the comparison is made while driving, the fault mainly shows when the car is moving.
Możliwe przyczyny
- A fault in the brake control module (BCM)
- CAN-related fault codes in the central electronic module (CEM)
Co możesz zrobić
- 1Read the fault codes in the BCM, then in the CEM
- 2Check that the connectors to the front wheel sensors are fully seated and free from dirt and oxidation, and look for chafing in the wiring
- 3Fault-trace and remedy the faults in the brake control module and the CAN-related codes in the CEM first; this code cannot be cleared until they have been remedied and cleared
- 4Do not work on the wheel sensors or the braking system yourself, since they affect the brakes and the ABS; have a workshop check them
Objawy, które możesz zauważyć4
- Malfunction indicator lamp (MIL) is on
- Automatic engine start and stop does not work while driving
- Automatic engine start and stop does not work at idle
- Autostart does not work
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.