What does fault code TCM-P278768 mean?

Diagnostic fault code details for TCM-P278768 (Volvo C30 (2007–2013), Volvo C70 (2006–2013), Volvo S40 (2004–2013)). Repair service at OBD Tuning.

VOLVO

TCM-P278768 - Clutch Temperature Too High. Algorithm Based Failures. Event information

System

Transmission Control Module (TCM)

Volvo models this fault code applies to

Applies to the following models:

14 models

C30 (2007–2013), C70 (2006–2013), S40 (2004–2013), S60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V50 (2004–2013), V60 (2011–), V60 Cross Country (2015–), V70 (2008–), XC60 (2009–), XC70 (2008–), XC90 (2003–)

Show models by year and engine (47)

What does this fault code mean?

This code is an event code showing that the clutch in the transmission has become too hot. It does not indicate a fault in the control module where it is active; it is information. The control module then requests that the engine limits torque to protect the transmission from excessive load.

Possible causes

The transmission fluid has been too hot for too long
Faulty brake signal showing that the brake is active while the car is driven under high load with a slipping lock-up
The brake and throttle have been applied at the same time for a long period

What you can do

1No troubleshooting is needed for this code, as it is an information code
2Avoid applying the brake and throttle at the same time for long periods
3Let the transmission cool down and drive gently until the torque limit stops
4If the code returns, have a workshop check the brake signal and the transmission fluid level

Symptoms you may notice4

The car lacks power, especially when pulling away from standstill
Hesitation or jerky running when accelerating, slowing down or at steady speed
Message in the text display
Reduced performance

What the fault can affect1

The engine limits torque until the transmission oil temperature has dropped below a set level

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