P0200 — Injector Control Circuit/Open
Moderate severityWhat it means
P0200 is stored when the engine control unit sees a fault involving the fuel injector control circuit. This code covers the injector control (driver) circuit in general rather than one named cylinder; the control unit saw a fault in how the injectors are switched. The “open” status means the control circuit is electrically broken — usually a cut wire, an unplugged connector or a failed driver.
Common symptoms
- The component does not respond to commands
- Rough running or misfire
- Hesitation or power loss
- Higher fuel consumption
Likely causes
- Open or broken wire in the control circuit
- Unplugged or corroded connector
- A wiring, connector or driver-circuit fault
- A failed injector loading the circuit
What to check first
- Check circuit continuity and connector pins with the key off
- Inspect the injector harness, connectors and grounds
- Check each injector's resistance against specification
Can you keep driving?
Misfuelling can misfire and stress the catalytic converter; have it diagnosed soon.
Frequently asked questions
What is the most common cause of P0200?
The most likely cause is: Open or broken wire in the control circuit. Several other faults can set P0200 as well, so confirm the real cause with live data and the checks above before replacing any parts.
Can I just clear P0200 and keep driving?
Clearing P0200 with an OBD2 scanner turns the warning light off, but if the underlying fault has not been repaired the code will usually come back within a few drive cycles. Fix the cause first, then clear the code to confirm the repair worked.
How serious is P0200?
P0200 is a moderate-severity code. The car is often still drivable, but have it diagnosed soon — the underlying problem can get worse and it may fail an emissions test.
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