VOLVO
TCM-0191 - Gear selector module (GSM). Internal fault
System
Transmission Control Module (TCM)
Volvo models this fault code applies to
This fault code has different meanings depending on model, model year or engine. Select the meaning that applies to your car.
Applies to the following models:
4 modelsC30 (2007–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013)
Show models by year and engine (6)
- Volvo C30 (2007–2013)2007–2013Transmission AW55-50/51SN only
- Volvo C70 (2006–2013)2006–2013Transmission AW55-50/51SN only
- Volvo S40 (2004–2013)2004, 2011–2012Transmission AW55-50/51SN only
- Volvo S40 (2004–2013)2005–2010Transmission AW50/51 AWD, AW55-50/51SN only
- Volvo V50 (2004–2013)2004, 2011–2012Transmission AW55-50/51SN only
- Volvo V50 (2004–2013)2005–2010Transmission AW50/51 AWD, AW55-50/51SN only
What does this fault code mean?
The gear selector module (GSM) has detected a move from P to R with no response from the hall sensor in the selector assembly. The hall sensor is therefore not working as it should, and the fault shows with a warning lamp.
Possible causes
- The hall sensor is not functioning
What you can do
- 1Clear the fault code and road test the car to see whether it comes back
- 2Have a workshop check the hall sensor in the selector assembly and replace the circuit board or the selector module if it is faulty
- 3After the repair, a workshop should check that the P lock works as it should
Symptoms you may notice1
- The general warning lamp is lit
General guidance for car owners. Diagnosis on the car can point to a different cause.