P0122
Throttle/Pedal Position Sensor/Switch A Circuit Low
P0122 is an OBD-II diagnostic trouble code meaning: Throttle/Pedal Position Sensor/Switch A Circuit Low. Common causes: throttle position sensor malfunction, open or short circuit in wiring harness. Estimated repair cost: $33–111.
Symptoms
- Unstable idle
- Dips during acceleration
- Increased fuel consumption
- Check Engine light comes on
- Switching to emergency mode
Causes
- Throttle Position Sensor Malfunction
- Open or short circuit in wiring harness
- Poor contact in connectors
- Engine control unit (ECU) malfunction
- Problems with power supply or sensor ground
How to Fix
- Check the throttle position sensor for damage
- Inspect the wiring harness and connectors for damage or corrosion.
- Check the voltage and resistance of the sensor according to the manufacturer's specifications
- If necessary, replace the sensor or repair the wiring harness
- Clear error memory and check if code is returned
Related codes
Error P0122 by Vehicle Brand
FAQ
What does the P0122 code mean?
P0122 is an OBD-II diagnostic trouble code that indicates: Throttle/Pedal Position Sensor/Switch A Circuit Low
What causes a P0122 error code?
The most common causes of P0122 include: Throttle Position Sensor Malfunction; Open or short circuit in wiring harness; Poor contact in connectors; Engine control unit (ECU) malfunction.
How do I fix a P0122 diagnostic trouble code?
To fix P0122: Check the throttle position sensor for damage. Inspect the wiring harness and connectors for damage or corrosion.. Check the voltage and resistance of the sensor according to the manufacturer's specifications. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0122?
Limited driving only, diagnose soon
How much does it cost to fix P0122?
The estimated repair cost for P0122 is $33–111. Actual cost depends on your vehicle, location, and labor rates.
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