What does fault code TCM-0519 mean?

Diagnostic fault code details for TCM-0519 (Volvo C30 (2007–2013), Volvo C30 (2007–2013), Volvo C30 (2007–2013)). Repair service at OBD Tuning.

VOLVO

TCM-0519 - Sensor group 2. Supply voltage too high

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 supply voltage to sensor group 2 in the transmission is too high. Sensor group 2 monitors the shift forks for the even gears. The cause is either a voltage cable to the sensors that has been shorted to supply voltage, or a damaged transmission control module.

Possible causes

Voltage cable to the sensors shorted to supply voltage
Damaged transmission control module (TCM)

What you can do

1Read the fault codes, clear TCM-0519 and drive the car to see whether the code returns
2Inspect the cable to the sensors for chafing and pinch damage, especially where it could have touched a live wire
3Use a multimeter to check that the cable has no contact with supply voltage (positive) when the ignition is off
4Have a workshop check the voltage to the sensors. If the fault is inside the transmission control module, it must be replaced

Symptoms you may notice5

Malfunction Indicator Light (check engine) lit or behaving abnormally
Yellow warning symbol and text message in the display
No automatic gear changes
Shifts hard or jerky
Shifts too early, too late or too often

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