What is CID 172:
CID 172 refers to an issue with the vehicle's cooling system, specifically with the coolant temperature sensor. The ECM detects that the sensor is malfunctioning or providing inaccurate data, potentially leading to overheating or engine damage.
Why This Happens:
- Faulty coolant temperature sensor.
- Shorted or damaged wiring in the sensor circuit.
- Loose or corroded connectors.
- Low coolant levels or poor circulation.
- ECM misinterpretation of sensor data.
How to Fix It:
- Inspect the coolant temperature sensor for damage or malfunction.
- Test the sensor’s voltage and resistance to ensure proper functionality.
- Check the wiring and connectors for visible damage or corrosion.
- Replace the faulty sensor if necessary.
- Ensure proper coolant levels and circulation in the system.
How to Avoid It Before It Happens:
- Regularly inspect the coolant temperature sensor and wiring.
- Keep connectors clean and corrosion-free.
- Maintain proper coolant levels and system integrity.
- Perform diagnostic checks to monitor the cooling system.
- Clue’s equipment maintenance services track cooling systems to prevent overheating and ensure optimal engine performance.
