What does fault code TCM-043E mean?

Diagnostic fault code details for TCM-043E (Volvo C30 (2007–2013), Volvo C30 (2007–2013), Volvo C30 (2007–2013)). Repair service at OBD Tuning.

VOLVO

TCM-043E - Shift fork. Shift fork 4 requested but movment on shift fork 2

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 control module (TCM) has requested a movement of shift fork 4, but shift fork 2 moves instead. The control valve decides whether the odd or the even gears are to be used, and the fault means the mechatronic unit must be replaced.

Possible causes

Damaged valve for selecting odd/even gears (OEC valve)
Fault in the hydraulic system
Damaged first shift solenoid
Damaged second shift solenoid

What you can do

1Read out the fault codes from the transmission control module and deal first with any codes that may share the same cause
2The fault means the mechatronic unit must be replaced, and a workshop should do this
3If the control module is also replaced, it must be programmed by a workshop, because a replacement control module arrives without software
4Then read out the fault codes again to see whether the fault code remains

Symptoms you may notice3

Check engine light comes on or behaves abnormally
Text window with yellow warning symbol and message
No automatic gear changes

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