What does fault code TCM-05B2 mean?

Diagnostic fault code details for TCM-05B2 (Volvo C30 (2007–2013), Volvo C30 (2007–2013), Volvo C30 (2007–2013)). Repair service at OBD Tuning.

VOLVO

TCM-05B2 - Hydraulic pressure solenoid driver, clutch even gears.Current to 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 current in the circuit for the output stage of solenoid CSPS2, which controls the hydraulic pressure over the clutch for the even gears, is too high. The cause is a damaged or dirty connector or circuit board, or a damaged transmission control module.

Possible causes

Connector or circuit board damaged or dirty
Damaged transmission control module (TCM)

What you can do

1Read the fault codes, clear TCM-05B2 and drive the car to see whether it comes back
2Have a workshop check the connectors and circuit board in the transmission with diagnostic equipment
3If the fault remains after this check, a workshop must replace the transmission control module

Symptoms you may notice5

Malfunction Indicator Light (check engine) lit or behaving abnormally
Yellow warning symbol and text message in the display
No automatic gear changes
Shifts hard or jerky
Shifts too early, too late or too often

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