The Volvo TCM-000F code is a diagnostic trouble code (DTC) stored in the transmission control module (TCM) when the control module registers that there is no current in the solenoid STH circuit. This code indicates that the Line Pressure Solenoid STH is not functioning correctly and needs to be addressed. Line pressure solenoid STH is responsible for regulating line pressure in the transmission, which is primarily affected by throttle position. A few common causes for this code to be triggered include contact resistance in terminals, open-circuit in the control signal cable or signal cable, and a defective solenoid STH. To ensure your vehicle’s safety and smooth operation, it is essential to identify and resolve the root cause of this code as soon as possible.
📢Read also: Volvo ECM-85 Code
Causes and Solutions for Volvo TCM-000F Code
| Cause | Solution |
|---|---|
| Contact resistance in terminals | Clean the terminals and check for contact resistance |
| Open-circuit in the control signal cable or signal cable | Check the control signal cable and signal cable for any signs of damage |
| Defective solenoid STH | Replace the solenoid STH |
| Throttle position | Adjust the throttle position |
Contact Resistance in Terminals
The Volvo TCM-000F code is triggered when the control module registers that there is no current in the solenoid STH circuit. This can be caused by contact resistance in the terminals. To rectify this issue, cleaning the terminals and checking for any contact resistance is essential. This should be done with a multimeter to measure the resistance between the terminals.
Open-Circuit in the Control Signal Cable or Signal Cable
Another common cause of this code is an open circuit in the control or signal cables. This can be identified by checking the cables for any signs of damage, such as corrosion or broken wires. If any damage is found, the cables should be replaced to ensure the safety and smooth operation of the vehicle.
Defective Solenoid STH
If the issue is not caused by contact resistance in the terminals or an open circuit in the control signal cable, then it is likely that the solenoid STH is defective. In this case, the solenoid STH should be replaced to resolve the Volvo TCM-000F code.
Throttle Position
The last possible cause of this code is a throttle position that is out of adjustment. The throttle position is essential for regulating line pressure in the transmission, and if it is out of adjustment, then it can cause the Volvo TCM-000F code to be triggered. To resolve this issue, the throttle position should be adjusted accordingly.
Conclusion
The Volvo TCM-000F code indicates that the Line Pressure Solenoid STH is not functioning correctly and needs to be addressed. Common causes of this code include contact resistance in the terminals, an open circuit in the control signal cable or signal cable, a defective solenoid STH, and a throttle position that is out of adjustment. To ensure your vehicle’s safety and smooth operation, it is important to identify and resolve the root cause of this Volvo TCM-000F Code as soon as possible.