FLANGE AS 7G5578 - Caterpillar

Probable Causes
The probable root causes are listed below:
A clutch pedal position switch that is incorrectly adjusted
Malfunctioning on/off switch for cruise control and idle control
Malfunctioning switch for service brake pedal position
Malfunctioning transmission neutral switch
Vehicle speed circuit problem
Battery power or ground to the Engine Control Module (ECM)
Adaptive cruise controlRecommended Actions
Perform the following diagnostic procedures in order:
Connect the Caterpillar Electronic Technician (ET) to the data link connector. Check the status screen for the last item that caused the kickout for the cruise control, the idle control or the PTO control. Note: Cat ET will only provide access to the last cause of the Kickout. If power has been cycled to the ECM since the last occurrence of the problem, then it may be necessary to take the vehicle for a test drive in order to repeat the problem. Check Cat ET before the ECM is turned off by the keyswitch.If Cat ET indicates "Switch Turned Off", go to Step 2.If Cat ET indicates "Brake", "Clutch" or "Neutral" go to Step 3.If the Cat ET indicates "Bad Vehicle Speed", "Vehicle Speed < Limit" or "Vehicle Speed >= Limit" go to Step 4.
If Cat ET indicates "Switch Turned Off", the ECM has detected an open circuit in the on/off switch circuit. This pertains to the cruise control, the idle control or the PTO. Perform the following tests in order:
Ensure that the operator has not actually turned off the cruise control on/off switch or the PTO on/off switch.
Check the status screen on Cat ET while the switch is being used. If the problem is not apparent check the switch and the wiring.
If the problem is related to the cruise control or idle control refer to Troubleshooting, "Cruise Control Switch Circuit - Test, Service Brake Pedal Position (Switch 1) Circuit -Test, and Clutch Pedal Position Switch Circuit - Test".
If the problem is related to the PTO refer to Troubleshooting, "PTO Switch Circuit