What does fault code TCM-0566 mean?

Diagnostic fault code details for TCM-0566 (Volvo C30 (2007–2013), Volvo C30 (2007–2013), Volvo C30 (2007–2013)). Repair service at OBD Tuning.

VOLVO

TCM-0566 - Clutch system hydraulic pressure. Hydraulic pressure missing

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 safety valve CPCUT opens the clutches if several solenoids fail at the same time, and it is moved back and forth regularly so that it does not stick. The fault code is set when this movement of the valve does not work. The cause is either a damaged solenoid CCFS that stays constantly low, or a safety valve CPCUT that is stuck or sticking.

Possible causes

Damaged solenoid CCFS, constantly low
Damaged safety valve CPCUT, stuck or sticking

What you can do

1Read the fault codes and clear TCM-0566. Drive the car to see whether the code returns
2Have a workshop open the transmission control system and check solenoid CCFS and safety valve CPCUT visually for oxidation, dirt and metal deposits
3If the fault cannot be found or fixed, a workshop must replace the mechatronic unit

Symptoms you may notice1

Yellow warning symbol and text message in the display

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