What does code P1203 mean on Land Rover vehicles?
The ECU has detected that fuel injector 3 has an open circuit or a short to ground, preventing proper fuel injection.
OBD-II Code Land Rover
P1203 — Land Rover — Injector 3 Open Circuit or Ground Short Fault
The ECU has detected that fuel injector 3 has an open circuit or a short to ground, preventing proper fuel injection.
Common symptoms
- Engine misfire
- hesitation
- rough running
- reduced performance
Possible causes
- Faulty injector
- broken or shorted wiring
- poor electrical connection
Initial recommendation
Test injector 3 electrically, inspect wiring and connectors, replace injector if fault persists.
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 P1203 with your vehicle's actual symptoms for more complete diagnostic guidance.
Go to the app View more brands