Throttle Actuator Control Range/Performance Problem
The throttle actuator isn't responding correctly to commands from the engine control module.
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What it means (plain English)
The vehicle has an electronic throttle system where the gas pedal sends a signal to the engine computer, which then controls the throttle plate; if it's not working right, the engine won't respond as expected.
What the computer is actually seeing
The PCM detects that the throttle position is out of the expected range according to the pedal position input, indicating a control issue or sensor malfunction.
What a healthy reading looks like
Throttle position should normally stay between 0% (closed) and 100% (fully open). Check for a response time under 200 milliseconds for throttle movement after a pedal input.
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. Inspect the wiring and connectors to the throttle actuator and TPS for damage or corrosion. Decision: If damaged, repair or replace those components.
- 22. Check the throttle position sensor with a multimeter. You should see a voltage between 0.5 to 4.5 volts corresponding to the throttle position. Decision: If out of spec, replace the TPS.
- 33. Use a scan tool to check for additional codes. If other related codes are present, address them first. Decision: Follow up on related issues before continuing with this code.
- 44. Test the throttle actuator for proper operation using a scan tool to command throttle openings. Decision: If it doesn’t respond, replace the throttle actuator.
Common causes
- Faulty throttle position sensor (TPS)
- Wiring issues or poor connections to the throttle actuator
- Defective throttle actuator motor
- Software issues in the engine control module (ECM)
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's recommended to fix this soon, as throttle response can be inconsistent, posing a safety risk.
Why does this code pair with P2116 or P2117?
These codes all relate to throttle control issues in the same system, indicating a shared problem.
Will this issue come back after clearing the code?
If the root cause isn't fixed, it's likely to return.
Working a real vehicle right now?
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