This means the Engine Control Unit (ECU) is receiving a signal from the IAT sensor that suggests the intake air is colder than it actually is. The ECU uses this information to adjust fuel delivery and ignition timing. An inaccurate reading can lead to poor engine performance, rough running, and potentially even damage if left unaddressed.
Possible causes include:
* Faulty IAT sensor: This is the most likely culprit. The sensor itself may be malfunctioning, providing incorrect readings.
* Wiring problems: Damaged, shorted, or corroded wiring between the IAT sensor and the ECU can also cause this code.
* Poor electrical connection: A loose or corroded connector at either the sensor or the ECU can interrupt the signal.
Before attempting repairs:
* Check the sensor and wiring visually: Look for any obvious damage to the IAT sensor or its wiring harness.
* Clear the code: After addressing potential issues, clear the trouble code and see if it returns. If it does, the problem likely remains.
It's generally recommended to have a qualified mechanic diagnose and repair this issue, as proper troubleshooting may require specialized tools and knowledge. Simply replacing the IAT sensor might not solve the problem if the underlying issue is a wiring fault.
