What does fault code TCM-0443 mean?

Diagnostic fault code details for TCM-0443 (Volvo C30 (2007–2013), Volvo C30 (2007–2013), Volvo C30 (2007–2013)). Repair service at OBD Tuning.

VOLVO

TCM-0443 - Shift fork 3 or 4. Shift movement in opposit direktion than requested

System

Transmission Control Module (TCM)

Volvo models this fault code applies to

Applies to the following models:

4 models

C30 (2007–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013)

Show models by year and engine (10)

What does this fault code mean?

Shift fork 3 or 4 travels the wrong way compared with the one the TCM has requested. The fault lies in the second hydraulic valve or in the control solenoid for the valves, and it means the mechatronic unit must be replaced.

Possible causes

Damaged second hydraulic valve
Damaged control solenoid for the hydraulic valves

What you can do

1Read out the fault codes from the transmission control module and deal first with any codes that may share the same cause
2The fault means the mechatronic unit must be replaced, and a workshop should do this
3If the control module is also replaced, it must be programmed by a workshop, because a replacement control module arrives without software
4Then read out the fault codes again to see whether the fault code remains

Symptoms you may notice5

Check engine light comes on or behaves abnormally
Text window with yellow warning symbol and message
Shifts occur too early, too late or too often, sometimes or all the time
Gear changes take too long to complete, sometimes or all the time
Gears shift hard or jerky, sometimes or all the time

General guidance for car owners. Diagnosis on the car can point to a different cause.