Transmission Control Module (TCM) Requested Torque Deviation
The TCM has detected a torque deviation that doesn't match expected values.
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 Transmission Control Module notices that the engine's torque output isn't what it should be during a shift, which can mess with gear changes.
What the computer is actually seeing
The TCM compares the engine torque requested via the accelerator pedal position with the actual torque calculated from various sensors. If the difference exceeds the acceptable range, it sets the code.
What a healthy reading looks like
Expected torque should be within 5% of the requested value during operation. Engine output torque typically ranges from 100 to 400 Nm in standard vehicles, depending on the load and conditions.
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 for any loose or damaged wiring/connectors between the TCM and throttle position sensor. Repair as needed.
- 2Using a scan tool, check live data for the accelerator pedal position sensor. Ensure it matches the expected values during operation (0-100% range).
- 3Inspect the throttle position sensor. If readings are erratic or out of range, replace the sensor and retest the system.
- 4Verify engine performance issues by checking for any misfires, air intake issues, or fuel delivery problems.
- 5Clear the code and take the vehicle for a short test drive to see if the code reappears.
Common causes
- Faulty TCM
- Bad throttle position sensor
- Wiring issues between TCM and throttle sensor
- Engine performance problems affecting torque output
- Faulty or stuck accelerator pedal position sensor
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code set?
It's moderate severity, so while you can technically drive it, you may experience shifting problems. Fix it soon to avoid further damage.
Will this code come back after a reset?
If the underlying issue isn't fixed, the code will likely return after driving for a short distance.
Why does this code often pair with P0810 or P0811?
These codes relate to similar torque and transmission control problems, indicating likely issues in the same system.
Working a real vehicle right now?
Let DiagCoach walk you through it live with your specific symptoms, vehicle, and what you've already checked.
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