P2127critical severityPowertrain
Throttle/Pedal Position Sensor/Switch E Circuit Low
on 2002 Infiniti QX4 3.3L V6 · RWD
What this code means
Low voltage from accelerator pedal position sensor E.
Symptoms
- Limp mode
- Reduced power
- Check engine light
Common causes
- APP sensor fault
- Wiring short to ground
- Corroded connection
Diagnostic steps
- Measure APP sensor E voltage
- Check wiring and connector
Repair notes
Replace pedal assembly or repair wiring.
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