Code
P0123
Throttle
Capteur de position papillon — signal haut
Le signal de position papillon est trop haut.
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Most likely causes
- Capteur TPS défectueux
- Circuit ouvert
Symptoms you may notice
- Check engine light
- Limp mode
- Poor response
Checks to run
- Read TPS live
- Test reference voltage
- Inspect wiring
Tools you may need
OBD-II scanner
Multimeter
Always diagnose before replacing. Codes share symptoms; confirm the cause with measurements before buying parts.