P06ECFuel Injector Control Module Requested MIL Illumination
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P06EC is a notice code like P0700: a separate fuel injector control module has stored an emission-related fault of its own and asks the engine module over CAN to switch on the check engine light. The actual fault is stored in that module and must be read there; simple OBD readers show only P06EC. GM uses it on the 2019 Corvette ZR1, whose LT5 engine adds port injection driven by its own module with its own crank and cam inputs; the code runs continuously from key on and is listed as type A without its own MIL – the lamp comes from the module's fault. Older separate injector modules (Ford 6.0 L Power Stroke, GM bi-fuel CNG trucks) report through P0611 or U codes instead. Any limp mode follows the module's fault.
- What you may notice
- Check engine light on
- Generic scanner shows only P06EC – details in the injector module
- Depending on the fault, power loss, misfire or limp mode
- Likely causes
- LikelyEmission-related fault in the injector control module or its injectors/sensors (code stored there)
- PossibleSupply, ground or relay problem of the module
- PossibleInternal module fault (memory, processor)
- RareSoftware level of engine or injector module
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Usually a job for a workshop.Typical cost: €100 – €1,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.