What does fault code TCM-0041 mean?

Diagnostic fault code details for TCM-0041 (Volvo C30 (2007–2013), Volvo C30 (2007–2013), Volvo C30 (2007–2013)). Repair service at OBD Tuning.

VOLVO

TCM-0041 - Control module temperature sensors. Faulty relation

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 transmission has two temperature sensors, one in the oil sump and one in the control module's processor. Their readings differ by more than is allowed, and the control module cannot tell which reading is wrong.

Possible causes

A temperature sensor is damaged

What you can do

1If you have a diagnostic tool: read both oil temperature sensors in live data, compare them with room temperature, and see which one is out of line
2After a test drive with gear changes, read both sensors again and check that they rise in step
3Have a workshop read out the extended fault code information to see more about the fault
4If the fault remains, have a workshop replace the mechatronic unit, which is needed if the sensor or the control module's processor is at fault

Symptoms you may notice2

Gear shifts may feel rough or jerky
Gear changes take too long to complete

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