Case IH 1019 – Hitch / EDC (Electronic Draft Control) Controller: Load sensing pin 8V reference - voltage too low YES

The 8-volt reference circuit that supplies power to the draft load sensing pins has dropped below the acceptable voltage threshold. This condition typically indicates a short to ground in the wiring harness or an internal short within one of the draft pin sensors.

• Puma/Mid Range Magnum
• Maxxum
• Farmall
• Magnum Series
• Puma Series
• Maxxum Series
• Steiger Series
• Farmall Series
• CX Series

1. 1

   Disconnect the left and right draft load sensing pins one at a time to see if the 8V reference voltage returns to normal (if it returns, that specific pin is internally shorted).

2. 2

   Inspect the chassis wiring harness running from the EDC/XCM controller to the rear hitch draft pins for chafed wires, pinched lines, or shorts to the tractor chassis (ground).

3. 3

   Inspect the connectors at both the draft pins and the controller for moisture, corrosion, or bent pins that could pull the reference voltage down.

4. 4

   Test the 8V reference output directly at the controller module to ensure the module itself has not failed internally.

1. 1

   Repair Wiring

   If a short to ground is found in the chassis harness, repair the damaged wire and secure it away from pinch points.

2. 2

   Replace or Bypass the Sensor

   If a draft pin is internally shorted, remove the defective pin from the lower link and install a new OEM draft sensing pin. Alternatively, if the operator does not use the draft control function, install a Draft Load Sensing Pin Elimination Kit to bypass the system.

3. 3

   Clear Codes

   Clear the 1019 fault code from the system.

4. 4

   Recalibrate

   Perform the hydraulic lift calibration.