Case IH 1016 - UCM – UCM / XCM / EDC / Armrest module: Left-hand load sensing pin - signal too low

The control module is receiving a voltage signal from the left-hand draft load sensing pin that is below the acceptable lower limit. This is typically caused by a failed internal potentiometer within the sensing pin, a short to ground in the signal wire, or an open circuit in the harness.

• VESTRUM CVX
• Magnum 7110
• Magnum 7120
• Magnum 7130
• Magnum 7140
• Magnum 7150
• Magnum 7210
• Magnum 7220
• Magnum 7230
• Magnum 7240
• Magnum 7250
• Magnum 8910
• Magnum 8920
• Magnum 8930
• Magnum 8940
• Magnum 8950
• Magnum 215 through 355
• Puma 115
• Puma 125
• Puma 130
• Puma 140
• Puma 145
• Puma 150
• Puma 155
• Puma 160
• Puma 165
• Puma 180
• Puma 195
• Puma 210
• Puma 225 CVX
• MX80C
• MX90C
• MX100
• MX110
• MX120
• MX135
• MX150
• MX170
• Steiger Series

1. 1

   Inspect the wiring harness and the plastic weather connector at the left-hand load sensing pin for corrosion, moisture, or physical damage.

2. 2

   Verify that the pin is receiving its 8V reference voltage. (Note: If the 8V reference voltage is too low, the system will typically log code 1019 instead).

3. 3

   Ensure the pin is fully plugged in. If both pins are disconnected, the system will log code 1018.

4. 4

   Test the signal wire from the left-hand load sensing pin back to the UCM/EDC controller for an open circuit or a short to ground.

1. 1

   Support hitch arm

   Option A (Retain Draft Control): Support the lower left draft link/hitch arm securely.

2. 2

   Disconnect wiring harness

   Disconnect the wiring harness from the defective left-hand load sensing pin.

3. 3

   Remove retaining hardware

   Remove the retaining hardware holding the pin in the hitch assembly.

4. 4

   Remove old pin

   Drive out the old load sensing pin.

5. 5

   Install new pin

   Install the new OEM load sensing pin and secure the retaining hardware.

6. 6

   Reconnect wiring harness

   Reconnect the wiring harness.

7. 7

   Perform auto-calibration

   Perform the hydraulic lift auto-calibration procedure (often associated with code 1024) to calibrate the new sensor to the UCM.

8. 8

   Locate harness connectors

   Option B (Bypass Draft Control): Locate the harness connectors for both the left and right load sensing pins.

9. 9

   Disconnect factory harness

   Disconnect the factory harness from the physical pins.

10. 10

    Plug in elimination modules

    Plug the two electronic load sensing elimination modules (dummy resistors) into the factory harness connectors.

11. 11

    Secure modules and wiring

    Secure the modules and wiring to the chassis using tie wraps to prevent snagging.

12. 12

    Clear fault code

    The diagnosis system will now read a fixed, acceptable signal, clearing Code 1016.