What does code P1509 mean on Land Rover vehicles?
A short circuit has been detected in the idle speed control system electrical circuit.
OBD-II Code Land Rover
P1509 — Land Rover — Idle Speed Control Short Circuit Fault
A short circuit has been detected in the idle speed control system electrical circuit.
Common symptoms
- Irregular idle speed
- unstable RPM
Possible causes
- Faulty idle air control valve
- shorted wiring
- connector issues
Initial recommendation
Inspect idle air control wiring and replace faulty IAC valve if necessary.
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
Use the app to combine Land Rover code P1509 with your vehicle's actual symptoms for more complete diagnostic guidance.
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