OBD Codes List

Diagnostic reference · P06EC

P06EC

Fuel Injector Control Module Requested MIL Illumination

System
Computer output circuits (P code)
Lamp
Check Engine Light
Category
Powertrain - Computer and Auxiliary Controls

What it means

P06EC means Fuel Injector Control Module Requested MIL Illumination.

Where it lives

For P06EC, the part to look at first is the injector named here.

Check these first

  • The fuel injector control module detecting an internal fault
  • A short or open on an injector control circuit it watches
  • Low or unstable power and ground to the injector control module
  • A communication fault between the module and the PCM

What to do next

  1. Check for companion injector circuit codes stored with this one
  2. Inspect the injector control module power and ground connections
  3. Check the injector harness for opens, shorts and chafing
  4. Inspect the module connector for corrosion and pushed pins
  5. Repair the injector circuit the module flagged
  6. Clear the code and retest

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Updated

Generic SAE J2012 definition. Last updated 2026-08-30.