Throttle/Pedal Position Sensor/Switch A Circuit Low Input
13 articles · 5 makes affected
Safety Warning
Do not drive until professionally inspected.
Based on owner reports. Always prioritize safety and consult a qualified mechanic.
What is P0122?
Throttle Position Sensor (TPS) Circuit Low Input. The TPS is reporting abnormally low voltage, indicating a short circuit or sensor failure.
Symptoms You May Notice
- ●Check engine light
- ●Engine stalling
- ●No throttle response
- ●Limp mode activated
How to Fix It
- ●Replace TPS ($100-$300, intermediate)
- ●Repair short in wiring ($100-$300, intermediate)
Root Causesfor P0122
Based on 2 owner reports
Confirmed Causes
- 1in limp mode(50% of cases)
Things to Check
Suggested areas to investigate based on similar cases
DIY Diagnostic Guide
DIY Diagnostic Checklist
Based on 2 owner reports
Owner Statistics
Based on 235,232 real owner discussions • 5817 confirmed solutions
About This Data
Statistics are aggregated from real owner discussions on Reddit, automotive forums, and YouTube comments. All data is anonymized and represents actual repair experiences reported by vehicle owners.
Frequently Appears With
These codes often appear together in owner reports. Check these if you see P0122.
Based on analysis of 2 owner reports where multiple codes appeared together.