VOLVO
ECM-A680 - Transmission control module (TCM). Faulty signal
System
Motorstyring (ECM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
3 modellerC30 (2007–2013), S40 (2004–2013), V50 (2004–2013)
Vis modeller per årsmodell og motor (3)
Hva betyr feilkoden?
The engine control module monitors CAN traffic between itself and the transmission control module (TCM). The code is set in two ways: when the TCM asks for the malfunction indicator lamp to flash, which counts as a faulty signal, or when that lamp signal is absent from the CAN network. Either way, the fault most likely lies in the transmission control module.
Mulige årsaker
- The TCM sends a request for the malfunction indicator lamp to flash
- The lamp signal from the transmission control module is absent from the CAN network
Hva du kan gjøre
- 1Read the fault codes in the transmission control module (TCM) first, then in the central electronic module (CEM)
- 2Fault-trace and remedy the TCM faults and the CAN codes in the CEM before clearing this code
- 3Check the connectors and CAN wiring to the transmission control module for open circuits and chafing
- 4Clear the fault code once the faults are remedied and road test the car to see whether it returns
Symptomer du kan merke1
- No noticeable symptoms for the driver
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