Torque Converter Clutch Circuit Intermittent
The transmission is having issues engaging the torque converter clutch.
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)
When your car's engine is running, it should connect smoothly to the wheels through the torque converter. If there’s a problem, it can slip or not lock up properly, wasting fuel and causing performance issues.
What the computer is actually seeing
The transmission control module (TCM) looks for a specific voltage signal (usually around 12V when engaged) from the torque converter clutch solenoid. If the voltage signal is missing or fluctuates unexpectedly, the code will trigger.
What a healthy reading looks like
You should see about 12V from the solenoid when the clutch is supposed to engage. If you measure less than 5V or there’s no voltage at all during operation, there’s an issue.
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.
- 1Check the transmission fluid level; it should be at specified level and clean (not burnt).
- 2Inspect the wiring and connectors going to the torque converter clutch solenoid for any visible damage or corrosion.
- 3Using a multimeter, check the voltage at the clutch solenoid connector while the engine is running and the vehicle is in gear - expect 12V when engaged.
- 4If voltage is missing or not within range, the solenoid may be faulty; replace and retest. If it still presents the code, inspect the TCM or wiring to the transmission for problems.
Common causes
- Faulty torque converter clutch solenoid
- Wiring issue or connector problem
- Low transmission fluid
- Failed transmission control module (TCM)
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's drivable, but expect reduced fuel efficiency and potential transmission overheating. Fix it soon.
Will this code come back after resetting the ECU?
It can come back if the underlying issue isn't fixed; the system will recheck and report the same fault.
Why does this code pair with other transmission codes?
Transmission codes often indicate related issues together, such as solenoid problems or fluid pressure issues that affect overall operation.
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