To fix the P1299 code, you’ll want to first diagnose the cylinder head temperature sensor and replace it if it’s faulty. Not only is it nearly impossible to drive with this system enacted, but you want to make sure that any further damage is averted. However, modern engines do have more resistance than older engines did when it comes to overheating temperatures, so it’s possible the failsafe kicked in before any damage occurred.Įither way, you need to have the problem looked at immediately. Sadly, by the time this failsafe technology takes over, permanent damage might have already occurred if the engine is overheating. The ECM has enacted the system to ensure that no further damage occurs to the engine or powertrain. Severe – Once the failsafe system engages in your vehicle, you know that there are serious problems occurring.

Defective wiring to cylinder head temperature sensor.Malfunctioning cylinder head temperature sensor.Here are some of the top P1299 DTC causes. However, the only way to tell what’s wrong is with a proper diagnosis. In more rare cases, there may be problems with the engine’s cooling system. The most common cause of P1299 on Ford vehicles is a faulty cylinder head temperature sensor or the wirings to it. The top symptoms noticed with the P1299 DTC include: Additionally, the vehicle will be put into a failsafe mode with reduced performance. With the P1299 trouble code set, you know the Check Engine Light will be illuminated. This failsafe mode is run by the ECM to protect the motor from further damage. When the cylinder head temperature sensor detects this condition, the engine will usually go into a failsafe mode. P1299 is a manufacturer-specific code typically used by Ford and Lincoln. P1299 indicates that the ECM (engine control module) noticed a signal indicating that the cylinder head temperature sensor detected a situation where the engine is overheating. P1299 – Cylinder Head Overtemperature Protection Active (Mazda, Ford, Lincoln and Mercury) What Does the P1299 Code Mean?

Ford diagnostic code p0016