Case IH 2485 (519578.10): CAN 1 - PB_EPL2_50 Absent on CAN1

The fault code indicates a communication failure on the tractor's Controller Area Network (CAN bus). Specifically, a specific message or module identifier ("PB_EPL2_50") is expected to be broadcasting on the CAN 1 network, but the system is not receiving it.

• MAXXUM T4E
• VESTRUM CVX
• Magnum
• Puma
• Optum
• Steiger

1. 1

   Use the Electronic Service Tool (EST) or AFS Pro display to check for secondary codes or 'Pending Fault Codes' that might indicate which specific module has lost power or ground.

2. 2

   Check the CAN 1 backbone wiring harness for heat damage, vibration wear, or corrosion, which can create an open circuit and prevent the ECU from communicating.

3. 3

   Verify that the modules on the CAN 1 network are receiving proper operating voltage and have clean grounds, as low voltage is a primary cause of communication dropouts.