Torque Converter Clutch Solenoid Control Circuit
Trouble with the torque converter clutch solenoid control circuit.
Heads up: this code wasn't in our hand-written library yet, so DiagCoach AI built this page on the fly. Double-check critical specs against service info before condemning parts.
What it means (plain English)
The computer controls the torque converter clutch to lock up the torque converter. If there's an issue, it may not lock up correctly, causing overheating or slipping.
What the computer is actually seeing
The engine control module (ECM) monitors the voltage from the torque converter clutch solenoid, expecting a signal around 12 volts when engaged and nearly 0 volts when disengaged.
What a healthy reading looks like
12 volts when the clutch is engaged, 0 volts when disengaged.
Guided diagnostic — the DiagCoach way
Don't just throw parts at it. Walk through these in order — each step tells you whether to keep going or stop and fix what you found.
- 11. Check the transmission fluid level and condition. Correct if low or fluid is burnt.
- 22. Inspect the wiring and connectors to the torque converter clutch solenoid. Look for frays or corrosion. Repair as necessary.
- 33. Use a multimeter to check the voltage at the torque converter clutch solenoid connector while the engine is running. Expect 12 volts when engaged. If not, trace back to the ECM.
- 44. If everything checks out, replace the torque converter clutch solenoid and retest.
Common causes
- Faulty torque converter clutch solenoid
- Wiring issues or short circuits
- Faulty engine control module (ECM)
- Transmission fluid temperature too high
Typical repair cost
$$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's drivable but will likely experience slipping during acceleration and may overheat the transmission over time.
Will this code come back after a clear?
It can return if the underlying issue isn't fixed, like wiring or the solenoid itself.
Why does this code often show with other SPN codes?
Codes often pair because issues with the torque converter can affect overall transmission performance, triggering multiple related codes.
Working a real vehicle right now?
Let DiagCoach walk you through it live with your specific symptoms, vehicle, and what you've already checked.
Start guided diagnostic →