Case IH 1919-00 - UCM – UCM: At least one pilot head not assigned to location / Rear pilot head #1 actuator temperature high

1919-00 indicates a CAN bus configuration or calibration issue where the system cannot identify the physical location of the pilot head valve. 1919-02 indicates the actuator for the rear remote/PTO pilot head is overheating.

• MAGNUM AFS Connect
• Puma
• Steiger

1. 1

   For 1919-00 (Unassigned location): Check valve assignments by running the 'HJ procedure' in the tractor's diagnostic menu to renumber and reassign the EHR (Electronic Hitch/Hydraulic Remote) valves.

2. 2

   For 1919-02 (Overheating): Verify the CAN bus 2 wiring harness for shorts or high resistance that could be causing false temperature readings before assuming the actuator has failed.

1. 1

   Replace the Pilot Head

   Remove the hex socket mounting screws and detach the faulty pilot head valve assembly from the rear hydraulic block.

2. 2

   Install the New Valve

   Mount the new pilot head assembly and torque the M5 screws to spec.

3. 3

   Perform Valve Calibration (Channel 1)

   Installing a new valve pilot head strictly requires an on-board calibration of the rear EHR valves.

4. 4

   Connect Special Tools

   Connect a pressure transducer (Special Tool #380001903) using a jumper harness (Special Tool #84148258) to complete the calibration procedure through the UCM.