What does code P1123 mean on Jaguar vehicles?
The ECU detects a high voltage signal from accelerator pedal position sensor 1, leading to abnormal throttle behavior.
OBD-II Code Jaguar
P1123 — Jaguar — Accelerator Pedal Position Sensor 1 Signal Voltage High
The ECU detects a high voltage signal from accelerator pedal position sensor 1, leading to abnormal throttle behavior.
Common symptoms
- Erratic acceleration
Possible causes
- Short to voltage
- wiring fault
- faulty APP sensor
Initial recommendation
Inspect APP sensor wiring for shorts and verify sensor output.
Safety notice
This information is for guidance only. Brand-specific codes may vary by model, year, engine, transmission and vehicle configuration. It does not replace a physical inspection or diagnosis by a qualified mechanic. If the vehicle is unsafe to operate, avoid driving it and seek professional inspection.
Analyze this code with MecaOBD
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