TORQUE CONVERTER CLUTCH CONTROL CIRCUIT MALFUNCTION
The torque converter clutch control circuit has a malfunction.
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)
This code means there's a problem with the circuit that controls the torque converter clutch, which helps the engine and transmission work together smoothly at higher speeds.
What the computer is actually seeing
The transmission control module (TCM) monitors the voltage and signal patterns from the torque converter clutch solenoid. When it detects an abnormality—like no signal or a short circuit—it sets this code.
What a healthy reading looks like
The TCM expects a voltage signal from the solenoid around 12 volts when it is commanded to engage the clutch. If the voltage is significantly lower than 11 volts or higher than 14 volts, there's a problem.
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—should be within recommended limits and clean without burnt smell. If low, top off and recheck.
- 22. Inspect the wiring and connectors to the torque converter clutch solenoid for damage or corrosion. Repair any issues found.
- 33. Using a multimeter, measure the voltage at the TCC solenoid connector while the vehicle is running. You should see around 12 volts. If not, proceed to Step 4.
- 44. Check the resistance of the torque converter clutch solenoid. It should be within the manufacturer's specified range. If it’s out of range, replace the solenoid.
- 55. If the solenoid checks out, test the TCM for proper operation. Use a scan tool to monitor transmission parameters and look for other related codes.
Common causes
- Faulty torque converter clutch solenoid
- Wiring issues or broken connectors in the TCC circuit
- Transmission fluid issues such as low level or contamination
- Faulty TCM (transmission control module)
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's generally drivable but may cause rough shifting at higher speeds, so fix it soon.
Will this code come back after I clear it?
If the root issue isn’t fixed, yes, it will likely return.
Why does it pair with other codes?
Codes often arise from similar issues, especially if there's a failure in the transmission system.
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