What does fault code TCM-0553 mean?

Diagnostic fault code details for TCM-0553 (Volvo C30 (2007–2013), Volvo C30 (2007–2013), Volvo C30 (2007–2013)). Repair service at OBD Tuning.

VOLVO

TCM-0553 - Main pressure solenoid. Current 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 measured current through the main pressure solenoid LPS is higher than the requested current. The solenoid sits in the transmission's mechatronic unit and regulates the transmission's system pressure. The cause is a damaged or dirty connector or circuit board, a damaged solenoid, or a damaged transmission control module.

Possible causes

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

What you can do

1Read the fault codes, clear TCM-0553 and drive the car to see whether it comes back
2Have a workshop open the transmission control system and check the solenoid for corrosion, poor contact, dirt or metal build-up. Check the oil level too
3If the fault cannot be found or fixed, have a workshop replace the mechatronic unit

Symptoms you may notice5

Malfunction Indicator Light (check engine) lit or behaving abnormally
Yellow warning symbol and text message in the display
The car may feel weak or lack power when pulling away from a standstill
Shifts hard or jerky
Hesitates or surges while driving, or runs with a jerky feel

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