VOLVO
BCM-U040482 - Invalid data received from transmission control module (TCM). Bus/message error. Sequence counter not correct or not updated
System
Bremsestyring (BCM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
1 modellXC90 (2003–)
Hva betyr feilkoden?
The brake module is told which gear is selected, and with reverse engaged the stability function must not be able to activate. The code is set if that signal is disturbed or missing, or if reverse is reported while the car has been moving forwards for over a second. It only applies to cars with DSTC and can be read at a certain speed when driving straight ahead.
Mulige årsaker
- Open circuit or short circuit in the circuit to the reverse light switch on manual gearboxes
- Interference on the CAN network
- Short circuit or open circuit in a CAN wire
Hva du kan gjøre
- 1Read codes in the central electronic module and troubleshoot any codes for communication or reverse lights there first
- 2Check that the reverse lights work only with reverse engaged; if so, the function is working and the code may be from an earlier fault
- 3Manual gearbox: have a workshop check the reverse gear switch on the gearbox
- 4Automatic gearbox: have a workshop check the gearbox function and the gear selector
- 5The brake system is safety-critical, so have a workshop carry out any work on the modules and the wiring
Symptomer du kan merke1
- No noticeable symptoms for the driver
Generell veiledning for bileiere. Feilsøking på bilen kan peke på en annen årsak.