Drive with caution — fix soon.
This code means the engine computer detected abnormally low voltage in the wiring or control circuit for the fuel injector on cylinder 12. It typically indicates a short to ground, damaged wiring, a bad connector, or a failing injector. Common fixes include repairing the wiring or connector, or replacing the injector on cylinder 12.
$150 – $500
Varies by vehicle and root cause.
Briefly, usually yes, but it's risky. A misfiring cylinder 12 can damage the catalytic converter and leave you stranded. Get it diagnosed soon, and stop driving if the engine shakes hard or the light flashes.
Expect $150 to $500 in most cases. Fixing a wiring short or connector is cheaper, while replacing the cylinder 12 injector costs more, particularly on large V12 engines where access can be tight.
It's moderate. The car will usually run, but a poorly firing cylinder can cause misfires and converter damage over time. Address it promptly to avoid bigger repair bills.
'Circuit low' means the computer saw lower voltage than expected on the injector's control wire, often from a short to ground or a wiring fault. It points to an electrical problem rather than the fuel itself.