What does fault code TCM-P073F68 mean?

Diagnostic fault code details for TCM-P073F68 (Volvo S60 (2011–), Volvo S80 (2007–), Volvo V40 (2013–)). Repair service at OBD Tuning.

VOLVO

TCM-P073F68 - Unable to Engage Gear 1. Algorithm Based Failures. Event information

System

Transmission Control Module (TCM)

Volvo models this fault code applies to

Applies to the following models:

9 models

S60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V60 Cross Country (2015–), V70 (2008–), XC60 (2009–), XC70 (2008–)

Show models by year and engine (9)

What does this fault code mean?

1st gear cannot be engaged properly, and the control module interprets this as clutch C3 or C4 not being engaged. The code is event-driven and does not indicate a fault in the control module where it is active.

Possible causes

Contact resistance or poor contact in the connectors to the linear pressure solenoids or the shift solenoid
A linear pressure solenoid has stuck, or the shift solenoid has stuck in the off or on position
One or more of the solenoids is damaged
Poor fluid quality
Fault inside the transmission control module (TCM) or its control system
Mechanical faults in the transmission

What you can do

1Read all codes: if there are other transmission codes, deal with them first, since they may be the root fault
2Clear the code and road test the car in first gear with engine braking to see whether it returns
3Have a workshop check the solenoid connectors and wiring and the transmission's mechanics, since the fault may lie inside the transmission

Symptoms you may notice5

No automatic gear change
No manual gear change
Gear changes are harsh or jerky
Gear changes take a long time
Gear changes happen too early, too late or too often

What the fault can affect3

Adaptation function is blocked
Neutral check is blocked
The transmission engages a safe gear and holds it for a while before a new gear can be requested

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