Hva betyr feilkode TCM-0421?

Diagnose og feilkodedefinisjon for TCM-0421 (Volvo C30 (2007–2013), Volvo C30 (2007–2013), Volvo C30 (2007–2013)). Bestill reparasjon hos OBD Tuning.

VOLVO

TCM-0421 - Shift fork 2 blocked. No movement on any other shift fork

System

Girkassestyring (TCM)

Volvo-modeller feilkoden gjelder for

Gjelder følgende modeller:

4 modeller

C30 (2007–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013)

Vis modeller per årsmodell og motor (10)

Hva betyr feilkoden?

Shift fork 2 is jammed and stays put when the TCM asks for a shift. The fault may be due to a damaged shift fork, a damaged position sensor, or missing hydraulic pressure in the shifting system.

Mulige årsaker

Damaged shift fork
Damaged position sensor
No hydraulic pressure to the shifting system

Hva du kan gjøre

1Read out the fault codes from the transmission control module; if a code concerns hydraulics or a position sensor, trace that one first
2With diagnostic equipment, run the control routine with the engine on, the parking brake applied and the selector in P, and listen for a clonking sound
3If several forks stay put, the fault is in the mechatronic unit, which a workshop should replace
4If only the position sensor for shift fork 2 misses its position but the clonking sound is heard, the sensor is at fault
5If there is no clonking sound and the sensor does not move as required, a mechanical fault in the transmission is likely; a workshop should check it
6Have a workshop check that the control module has the latest software before the car is returned

Symptomer du kan merke5

Check engine light comes on or behaves abnormally
Yellow warning symbol and message in the display
Shifts occur too early, too late or too often, sometimes or all the time
No forward or reverse movement with a gear selected
Gears shift hard or jerky, sometimes or all the time

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