VOLVO
ECM-U010387 - Lost Communication With Gear Shift Control Module A. Bus Signal / Message Failures. Missing message
System
Engine Control Module (ECM)
Volvo models this fault code applies to
Applies to the following models:
8 modelsS60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V70 (2008–), XC60 (2009–), XC70 (2008–)
Show models by year and engine (8)
- Volvo S60 (2011–)2014–2015Engine B4204T10, B4204T11, B4204T12, B4204T15, B4204T9, D4204T5 only
- Volvo S80 (2007–)2014–2015Engine B4204T11, B4204T12, B4204T15, D4204T5 only
- Volvo V40 (2013–)2015Engine B4204T11, D4204T14 only
- Volvo V40 Cross Country (2013–)2015Engine B4204T11, D4204T14 only
- Volvo V60 (2011–)2014–2015Engine B4204T11, B4204T12, B4204T15, B4204T9, D4204T5 only
- Volvo V70 (2008–)2014–2015Engine B4204T11, D4204T5 only
- Volvo XC60 (2009–)2014–2015Engine B4204T10, B4204T11, B4204T12, B4204T15, B4204T9, D4204T5 only
- Volvo XC70 (2008–)2014–2015Engine B4204T11, D4204T5 only
What does this fault code mean?
The ECM watches TCM signals and also waits for the gear selector (GSM) signal. The code is set when the signal from the gear selector is missing, and the cause may be an open circuit or a short circuit in the signal wire.
Possible causes
- Open circuit or short circuit in the signal wire
What you can do
- 1Read the code with a diagnostic tool and see whether it is active or only stored
- 2Check that the connectors on the signal wire to the gear selector are secure and free from oxidation
- 3Use a multimeter to check that the signal wire to the gear selector has no break or short to ground or voltage
- 4Have a workshop check the gear selector and the signal wire if the fault remains
Symptoms you may notice1
- No noticeable symptoms for the driver
General guidance for car owners. Diagnosis on the car can point to a different cause.