What is CID 23:
CID 23 refers to an issue with the vehicle's transmission system, particularly related to the transmission fluid temperature sensor. The ECM detects an out-of-range signal from the sensor, which can affect transmission operation and lead to poor shifting or overheating.
Why This Happens:
- Faulty transmission fluid temperature sensor.
- Shorted or damaged wiring in the sensor circuit.
- Loose or corroded connectors.
- Malfunctioning transmission causing abnormal fluid temperatures.
- ECM misinterpretation of the sensor’s signal.
How to Fix It:
- Inspect the transmission fluid temperature sensor for damage.
- Test the sensor’s voltage and resistance to verify it is within range.
- Check wiring and connectors for visible damage or corrosion.
- Replace the faulty sensor if necessary.
- Inspect the transmission system for overheating or performance issues.
How to Avoid It Before It Happens:
- Regularly inspect the transmission fluid temperature sensor and wiring.
- Perform routine transmission maintenance to ensure proper operation.
- Keep connectors clean and corrosion-free.
- Perform diagnostic checks to monitor transmission health.
- Clue’s equipment maintenance services track transmission health and prevent overheating or malfunctioning before they affect engine performance.
