Code result
P0204
Injector Circuit Malfunction - Cylinder 4
Moderate severity
What it means
An electrical fault has been detected in the cylinder 4 injector circuit — open winding, short to ground or short to supply. This typically disables that injector to protect the driver stage in the ECU; the cylinder runs without fuel and triggers a misfire code as well.
Is it safe to drive?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
Injector winding failed open
highOne of the most commonly reported causes for this code — check this first.
Wiring or connector fault
mediumA plausible cause — test and verify before replacing parts.
Related help
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