What is CID 112:
CID 112 refers to a problem with the engine’s cooling system, specifically with the coolant temperature sensor. The ECM detects that the coolant temperature is out of range, which can lead to overheating, engine misfires, or a decrease in fuel efficiency.
Why This Happens:
- Faulty coolant temperature sensor.
- Shorted or damaged wiring in the sensor circuit.
- Loose or corroded connectors.
- Low coolant levels.
- ECM failure to process sensor data correctly.
How to Fix It:
- Inspect the coolant temperature sensor for damage or malfunction.
- Test the sensor’s voltage and resistance to verify proper functionality.
- Check wiring and connectors for visible damage or corrosion.
- Replace the faulty sensor if necessary.
- Ensure the coolant system is functioning correctly and coolant levels are maintained.
How to Avoid It Before It Happens:
- Regularly inspect the coolant temperature sensor and wiring.
- Keep connectors clean and free from corrosion.
- Perform routine cooling system maintenance.
- Ensure coolant levels are maintained to avoid system failures.
- Clue’s equipment maintenance services monitor coolant systems to prevent overheating and ensure optimal engine performance.
