Bobcat 463 D9403 Error Code
D9403 Error Code
Trailer Brake Supplementary Line Relay Error Off is the main cause of D9403 error.D9403 vehicle requires its own specific maintenance regime to stay at peak efficiency, especially heavy duty construction vehicles like dump trucks. If you want to improve your return on investment and extend the life of your dump trucks, giving them the care and service they require is paramount.
Tip For 463 Model
It is recommended in cold weather to cycle the glow plugs twice before attempting to start the engine. This will allow for additional heating time for cold weather starting.