What does fault code TCM-0571 mean?

Diagnostic fault code details for TCM-0571 (Volvo C30 (2007–2013), Volvo C30 (2007–2013), Volvo C30 (2007–2013)). Repair service at OBD Tuning.

VOLVO

TCM-0571 - Multiplex solenoid driver, clutch cooling and hydraulic pressure gear change. Voltage too high

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?

The output stage for solenoid SHCMS, which controls clutch cooling and the hydraulic pressure used for gear changes, is shorted to supply voltage. The fault means the mechatronic unit in the transmission must be replaced. It may also be caused by a damaged solenoid, a damaged or dirty connector or circuit board, or a damaged transmission control module.

Possible causes

Damaged or dirty connector or circuit board
Damaged solenoid
Damaged transmission control module (TCM)

What you can do

1Read the fault codes, clear TCM-0571 and drive the car to see whether it comes back
2Have a workshop read the fault with diagnostic equipment. It normally points to the mechatronic unit needing replacement
3Have a workshop replace the mechatronic unit and confirm that the fault code does not return

Symptoms you may notice5

Malfunction Indicator Light (check engine) lit or behaving abnormally
Yellow warning symbol and text message in the display
Shifts hard or jerky
Shifts too early, too late or too often
No forward or reverse movement with a gear selected

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