LINES GP-AIR 4645555 - Caterpillar

Which Generate This Code:This diagnostic code is associated with the calibration of the lift valve and the tilt valve.Test Step 1. CYCLE THE POWER TO THE SYSTEM
Move the power switch on the machine to the "OFF" position.
Move the power switch on the machine to the "ON" position.Expected Result:The diagnostic code is no longer active.Results:
YES - The diagnostic code is no longer active. Proceed to Test Step 2.
NO - The diagnostic code is still active.Repair: This is an internal fault. Contact your Caterpillar Dealership..STOPTest Step 2. RECALIBRATE THE VALVE
Restart the procedure for the valve calibration. Refer to Systems Operation, Troubleshooting, Testing and Adjusting, "Bank valve (Grade Control) - Calibrate"Expected Result:Recalibration causes the "CB 5 Calibration Failure" code to become active.Results:
YES - Recalibration causes the "CB 5 Calibration Failure" code to become active.Repair: Contact your Caterpillar Dealership.STOP
NO - Recalibration does not cause the "CB 5 Calibration Failure" code to become active.Repair: Return the machine to normal operation.STOP