POWERTRAIN AR 4645986 - Caterpillar

Which Generate This Code:This diagnostic code is associated with the cables that connect to the display of the AccuGrade - Grade Control System.System Response:When this diagnostic code is active, "CB 27" is shown on the display.Test Step 1. CYCLE THE POWER TO THE SYSTEM
Turn the keyswitch for the machine to the "OFF" position.
Turn the keyswitch for the machine to the "ON" position.
Check the status of the diagnostic code "CB 27".Expected Result:The diagnostic code is not active.Results:
YES - The diagnostic code is not active. Return the machine to normal operation.STOP
NO - The diagnostic code is active.Repair: If the diagnostic code is still active, contact your Technical Communicator for a possible consultation with Caterpillar.STOP