VOLVO
TCM-0100 - Poor gear shifting quality
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:
9 modelsC70 Cabriolet (1998–2005), C70 Coupé (1998–2002), S60 (2001–2009), S70 (1997–2000), S80 (1999–2006), V70 (1997–2000), V70 (2000–2008), V70 XC / XC70 (2001–2007), XC90 (2003–)
Show models by year and engine (19)
- Volvo C70 Cabriolet (1998–2005)2000–2005Transmission AW55-50/51SN only
- Volvo C70 Coupé (1998–2002)2000–2002Transmission AW55-50/51SN only
- Volvo S60 (2001–2009)2001–2002
- Volvo S60 (2001–2009)2003All transmissions except: M58
- Volvo S60 (2001–2009)2004–2009Transmission AW50/51 AWD, AW55-50/51SN only
- Volvo S70 (1997–2000)2000Transmission AW50/51 AWD, AW55-50/51SN only
- Volvo S80 (1999–2006)1999–2000Transmission AW55-50/51SN only
- Volvo S80 (1999–2006)2001–2006Transmission AW50/51 AWD, AW55-50/51SN only
- Volvo V70 (1997–2000)2000Transmission AW50/51 AWD, AW55-50/51SN only
- Volvo V70 (2000–2008)2000–2002
- Volvo V70 (2000–2008)2003All transmissions except: M58
- Volvo V70 (2000–2008)2004–2007Transmission AW50/51 AWD, AW55-50/51SN only
- Volvo V70 (2000–2008)2008Transmission AW55-50/51SN only
- Volvo V70 XC / XC70 (2001–2007)2001–2002
- Volvo V70 XC / XC70 (2001–2007)2003–2007Transmission AW50/51 AWD only
- Volvo XC90 (2003–)2003All transmissions except: 4T65 AWD
- Volvo XC90 (2003–)2004–2007Transmission AW50/51 AWD, AW55-50/51SN only
- Volvo XC90 (2003–)2008–2014Transmission AW50/51 AWD only
- Volvo XC90 (2003–)2015
What does this fault code mean?
The transmission control module (TCM) assesses the quality of the gear changes. The fault means that the quality of the gear changes in the transmission is too poor, and the cause may be a mechanical or hydraulic fault in the transmission.
Possible causes
- Mechanical fault in the transmission
- Hydraulic fault in the transmission
What you can do
- 1Read off the fault codes and deal with any other transmission fault codes first, since one of them may be the cause
- 2Read off and clear the fault code, road test the car and listen for clear noises or malfunctions in the transmission
- 3Check the connectors to the transmission and to the control module for contact resistance and oxidation
- 4If the fault remains, have a workshop replace the transmission control system; this is a workshop task
Symptoms you may notice1
- General warning lamp on
What the fault can affect1
- The Emergency mode I program is activated
General guidance for car owners. Diagnosis on the car can point to a different cause.