Bobcat 553 C3121 Error Code
C3121 Error Code
LLMC Calibration Values Inverted is the main cause of C3121 error.C3121 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 553 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.