AccuGrade Laser System Caterpillar

This diagnostic code is associated with the calibration of the lift valve and the tilt valve.

Test Step 1. CYCLE THE SYSTEM POWER

1. Move the power/set up switch on the display to the "OFF" position

2. Move the power switch on the machine to the "OFF" position.

3. Move the power switch on the machine to the "ON" position.

4. Move the power/set up switch on the display 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The diagnostic code is no longer active.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• YES - The diagnostic code is no longer active.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 dealership's Technical Communicator for a possible consultation with Caterpillar.

  Stop.

Test Step 2. RECALIBRATE THE VALVE

1. Restart the valve calibration procedure. 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: This is an internal fault. Contact your dealership's Technical Communicator for a possible consultation with Caterpillar

  Stop.

• NO - Recalibration does not cause the "CB 5 Calibration Failure" code to become active.

  Repair: Return the machine to normal operation.

  Stop.