What does code P1242 mean on Jaguar vehicles?
The ECU detects a high voltage condition in the sensor power supply circuit, which may damage multiple sensors.
OBD-II Code Jaguar
P1242 — Jaguar — Sensor Power Supply High Input
The ECU detects a high voltage condition in the sensor power supply circuit, which may damage multiple sensors.
Common symptoms
- Potential sensor damage
- erratic readings
Possible causes
- Faulty voltage regulator
- overvoltage condition
Initial recommendation
Inspect electrical system regulation and repair overvoltage condition.
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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