The throttle position signal is below the expected range. The driver may notice limited power or poor throttle response.
Likely causes, most common first
- Open or shorted wiring
- Faulty throttle position sensor
- Poor connector contact
- Missing 5 volt reference
Parts usually involved
- Throttle position sensor
- Throttle body
- Sensor connector
Test before you replace
Check the 5 volt reference, ground and signal at the sensor connector.
General guidance for generic OBD2 codes. Always follow the maker's procedure for the car in front of you.