VOLVO
TCM-P055686 - Brake Booster Pressure Sensor Circuit Range/Performance. Bus Signal / Message Failures. Signal invalid
System
Girkassestyring (TCM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
9 modellerS60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V60 Cross Country (2015–), V70 (2008–), XC60 (2009–), XC70 (2008–)
Vis modeller per årsmodell og motor (9)
- Volvo S60 (2011–)2014–2015Kun girkasse: TG-81SC
- Volvo S80 (2007–)2014–2015Kun girkasse: TG-81SC
- Volvo V40 (2013–)2015Kun girkasse: TG-81SC
- Volvo V40 Cross Country (2013–)2015Kun girkasse: TG-81SC, TG-81SC AWD
- Volvo V60 (2011–)2014–2015Kun girkasse: TG-81SC
- Volvo V60 Cross Country (2015–)2015Kun girkasse: TG-81SC
- Volvo V70 (2008–)2014–2015Kun girkasse: TG-81SC
- Volvo XC60 (2009–)2014–2015Kun girkasse: TG-81SC
- Volvo XC70 (2008–)2014–2015Kun girkasse: TG-81SC
Hva betyr feilkoden?
Although the code is named after the brake booster pressure sensor, it concerns the speed signal from the brake control module (BCM), which the transmission control module receives over the CAN network. The code is set when the signal is missing or invalid. This points to a fault in the brake control module or in the CAN wire between it and the transmission.
Mulige årsaker
- Break or short on the CAN wire running between the BCM and the transmission module, which may come and go
- Fault in the brake control module (BCM)
Hva du kan gjøre
- 1Start by reading the fault codes in the CEM and the BCM, and fix those first
- 2Clear the fault code and road test the car to see whether it comes back
- 3With the ignition off, check the CAN wire between the brake control module and the transmission control module for breaks, chafing and loose connectors
- 4If you have diagnostic equipment, follow the speed signal in live data during a road test and check that it updates smoothly
- 5Do not work on the brake system or the brake control module (BCM) yourself; have a workshop carry out the troubleshooting there
Symptomer du kan merke1
- No noticeable symptoms for the driver
Hva feilen kan påvirke2
- The transmission control module uses a default value for the signal instead of the real speed
- Neutral control is blocked
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