CID 7801 CAT Fault Code

Cause :

The cause of the problem may lie in the knock sensor, as well as in the use of low-quality oil or in the breakdown of one of the components of the ignition system.The Engine and Transmission System is not performing as expected. An issue has been detected in the Engine Electrical System, including the Charging and Starting System that monitors and controls the engine starting system and 12V battery charging system.