Cause
Failed injector control relay
The relay powering the injector control module or the injector bank, failed. The module commands it and monitors the result, so it reports a control circuit fault while the injectors themselves are untouched.
Failed open, the injectors have no supply and the engine will not run — a complete no-start with normal cranking and no injector activity. Welded closed is the quieter fault, leaving the circuit live with the ignition off, which flattens the battery over a few days and can leave injectors powered when they should not be. Substitute an identical relay as a first test, and if it has welded, measure the load — a shorted injector or module input draws above the relay's rating and welds the replacement too.
Typically an easy fix. Often worth checking before paying anyone to look.
Codes this can cause (1)
Codes where this is a likely explanation first, rather than merely a possible one.
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