P1122
PPowertrainThrottle Position Sensor Intermittent Low Voltage
What does this code mean?
Severity : MediumP1122 is a manufacturer specific code. In the definition used here, it reports an intermittent low voltage on the throttle position sensor circuit. The exact meaning depends on the manufacturer. Brief signal drops make the control module think the throttle is suddenly closing.
Symptoms
- Check engine light on.
- Jerking or flat spots on acceleration.
- Unstable idle.
- Possible temporary limp mode.
Possible causes
- Worn position sensor track.
- Loose or corroded connector.
- Chafed wiring or intermittent short to ground.
- Unstable 5 V reference.
- Faulty throttle body.
Diagnosis and repair
- Confirm what this code means for your make.
- Inspect the connector and wiggle the wiring while watching the signal.
- Watch the signal trace while slowly opening the throttle.
- Check the sensor 5 V reference and ground.
- Replace the sensor or throttle body, then clear the code and road test.
Is this vehicle in your workshop?
Upload the ORI file: it is processed automatically in a few minutes, 24/7, and a calibration engineer takes over complex cases during opening hours.
Are you a driver?
Find a garage or a diagnostics and remapping specialist near you.
Find a pro on ChiptuneMAPCode details
Code
P1122
Category
Powertrain
Prefix
P
Standard
OBD-II / SAE J2012