VOLVO
TCM-P057A86 - Brake Pedal Position Sensor Circuit/Open. 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 pedal position sensor, it concerns the signal for the brake pedal position, which the engine control module (ECM) sends on the CAN network to the transmission control module. The transmission uses it for the shift lock function. The code is set when the signal is missing or invalid, which can make it hard to shift. This points to a fault in the engine control module or in the CAN wire between it and the transmission.
Mulige årsaker
- Fault in the engine control module (ECM), which sends the signal
- Open circuit or short circuit on the CAN wire between the engine control module and the transmission control module, which may come and go
Hva du kan gjøre
- 1Read the fault codes in the engine control module (ECM) and the central electronic control module (CEM) and fix them first; clear the code afterwards
- 2If you have diagnostic equipment, follow the brake pedal position in live data and check that the value changes when you press the pedal
- 3With the ignition off, check the CAN wire between the engine control module and the transmission control module for open circuits, chafing and loose connectors
- 4Use a multimeter to check that the CAN wires are not shorted to ground or supply voltage
- 5Do not work on the brake system yourself; have a workshop troubleshoot from the engine control module (ECM) with diagnostic equipment
Symptomer du kan merke4
- Message in the display
- Hard or impossible to shift
- The gear indicator does not work
- No manual shifting
Hva feilen kan påvirke2
- The transmission control module uses a default value for the signal instead of the real position
- The adaptation function is blocked
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