Torque Request Signal Denied
The vehicle's control module received a torque request signal that it denied.
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 system asked for more power to help in braking or acceleration, but the computer said 'no' because it detected something wrong.
What the computer is actually seeing
The control module is expecting a valid torque request signal from the accelerator or transmission control systems and gets a denied response when it tries to engage.
What a healthy reading looks like
Voltage on the torque request line should be between 0.5V (idle) to 4.5V (full throttle).
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 vehicle's wiring and connectors for damage or corrosion related to the throttle position sensor and control module.
- 2Verify the throttle position sensor voltage using a multimeter; it should range from 0.5V to 4.5V during operation.
- 3Inspect the brake light switch; ensure it is functioning properly, as it can affect torque requests during braking.
- 4Examine the connections to the transmission control module for any damage or loose connections; ensure they're secure.
Common causes
- Faulty throttle position sensor (TPS)
- Wiring issues between the control modules
- Failed brake light switch
- Malfunctioning transmission control module
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code present?
It's generally safe to drive, but performance may be limited, especially during acceleration.
Will this code come back after clearing?
Yes, if the underlying issue isn't resolved, the code is likely to reappear.
Why is this paired with other codes?
It often occurs alongside other torque-related codes due to interrelated systems like throttle position or transmission.
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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