Case IH 18419: Rear PTO Aggressiveness Switch: 'PTO_AggrsvnsSw' CAN signal from ICP - error state.

The CAN (Controller Area Network) data bus is receiving an invalid signal, or has lost communication entirely, regarding the position or command of the PTO aggressiveness switch from the ICP.

• VESTRUM CVX
• Case IH Maxxum CVX
• Case IH Puma CVX
• Case IH Optum CVX / AFS Connect
• Case IH Magnum Series
• Case IH Steiger & Quadtrac Series
• Case IH Vestrum Series

1. 1

   Verify the CAN data bus connections between the Multicontroller Armrest/ICP and the main tractor harness

2. 2

   Check for chewed, shorted, or damaged wiring harnesses leading to the cab controllers

3. 3

   Test the ICP programmable buttons and knobs to see if other armrest functions are also failing to communicate over the CAN bus

1. 1

   Replace switch assembly or ICP

   Replace the specific switch assembly or the entire Integrated Control Panel if the switch is hard-soldered to the board.