Case IH 1967-04 - UCM – UCM: Rear pilot head #5 reporting supply voltage low

The control module is detecting a voltage drop below the operational limit on the circuit supplying power to the 5th rear hydraulic remote valve actuator (pilot head).

• MAGNUM AFS Connect
• Puma
• Magnum
• Steiger

1. 1

   Verify the wiring harness between the UCM and the #5 rear remote pilot head for shorts to ground or broken wires causing the low voltage condition.

1. 1

   Calibrate EHR valves

   If a new valve pilot head is installed to correct the fault, an on-board calibration of the rear EHR valves is strictly required.

2. 2

   Access calibration menu

   Navigate to the 'H Menu' (HH MENU) on the ADIC dot matrix display and access Channel 1 (Valve Calibration).

3. 3

   Connect tools and complete setup

   Connect a pressure transducer and jumper harness to the valve to read calibration data and complete the setup.