P0200: Injector Circuit/Open
Do not keep driving
Expect rough running or a no-start. Have it diagnosed rather than driven, since unburnt fuel from dead cylinders reaches the catalytic converter.
What this code means
A fault in the injector drive circuitry that the module could not attribute to a specific cylinder. Where a cylinder-specific code would point at one injector, this general code more often points at something shared — the injector supply feed, a common ground, or the driver stage inside the module itself. Check what all the injectors have in common before testing them individually.
Likely causes
Start here
- Open circuit in injector wiring · moderate
- Failed injector supply feed or relay · moderate
- Corroded or loose connector · easy
Less common
- Blown fuse supplying the injector circuit · easy
- Control module driver failure · specialist
Symptoms
Components involved
Information, not instruction
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Have anything you intend to act on checked by a trained person against the manufacturer's own procedure for your vehicle. Nothing here replaces that procedure.
Community experience
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