What is CID 101 & How to Solve It?

Understand what CID 101 means, its causes, and follow our steps to resolve it and get your equipment back in optimal condition.

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Table of Content

What is CID 101:

CID 101 refers to an issue with the fuel injector system. The ECM detects that the fuel injectors are not receiving the correct signal, which can result in engine misfires, poor acceleration, or stalling.

Why This Happens:

  • Faulty fuel injector control module (FICM).
  • Shorted or damaged wiring in the injector control circuit.
  • Loose or corroded connectors.
  • Power supply issues affecting the FICM.
  • ECM failure to properly interpret injector control data.

How to Fix It:

  1. Inspect the fuel injector control module (FICM) and wiring for visible damage or malfunction.
  2. Test the FICM to ensure it is sending proper signals to the fuel injectors.
  3. Check connectors for cleanliness and tightness.
  4. Replace the faulty FICM if necessary.
  5. Ensure stable power supply to the FICM and ECM communication.

How to Avoid It Before It Happens:

  • Regularly inspect the FICM and wiring for damage.
  • Keep connectors clean and free from corrosion.
  • Perform routine diagnostic checks to monitor injector control performance.
  • Ensure stable power supply to the FICM and ECM communication.
  • Clue’s fuel management services track injector control systems and prevent issues before they affect engine operation.

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