VOLVO
TCM-0620 - Transmission module (TCM). Teach in function not completed
System
Transmission Control Module (TCM)
Volvo models this fault code applies to
Applies to the following models:
4 modelsC30 (2007–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013)
Show models by year and engine (10)
- Volvo C30 (2007–2013)2008Engine D4204T only · Transmission MPS6 only
- Volvo C30 (2007–2013)2009–2010Engine B4204S3, D4204T only · Transmission MPS6 only
- Volvo C30 (2007–2013)2011–2013Engine B4204S3 only · Transmission MPS6 only
- Volvo C70 (2006–2013)2009–2010Engine D4204T only · Transmission MPS6 only
- Volvo S40 (2004–2013)2008Engine D4204T only · Transmission MPS6 only
- Volvo S40 (2004–2013)2009–2010Engine B4204S3, D4204T only · Transmission MPS6 only
- Volvo S40 (2004–2013)2011–2012Engine B4204S3 only · Transmission MPS6 only
- Volvo V50 (2004–2013)2008Engine D4204T only · Transmission MPS6 only
- Volvo V50 (2004–2013)2009–2010Engine B4204S3, D4204T only · Transmission MPS6 only
- Volvo V50 (2004–2013)2011–2012Engine B4204S3 only · Transmission MPS6 only
What does this fault code mean?
One of the transmission's teach-in routines, called teach in, has not completed correctly. The teach-in lets the control module set how the solenoids control the hydraulic flow, so that the transmission works as well as possible. The fault is caused by a damaged control module in the transmission.
Possible causes
- Damaged transmission control module (TCM)
What you can do
- 1Read the fault code and clear TCM-0620. Drive the car to see whether it returns
- 2Have a workshop carry out an initial adaption with diagnostic equipment. This is a calibration that only a workshop does
- 3If the fault remains after the adaption, the control module may be damaged. Have a workshop check it
Symptoms you may notice3
- Yellow warning symbol and text message in the display
- No forward or reverse movement with a gear selected
- The engine does not start
General guidance for car owners. Diagnosis on the car can point to a different cause.