New Holland NH 1018 – Electronic Draft Control (EDC) module: Both load sensing pins disconnected

The tractor's control system has detected an open circuit or a complete loss of signal from both the left and right draft load sensing pins, which are used to measure the draft load of ground-engaging implements.

• T5 series
• T5.95
• T5.105
• T5.115
• T6 series
• T7 series
• T7.175
• T7.190
• T7.210
• TM series
• TM175
• TG series
• 40 series
• 8340

1. 1

   Inspect the wiring harness and connectors going directly to the left and right draft pins on the lower link arms for physical damage, corrosion, or loose plugs

2. 2

   Check the 8V reference voltage supply to the pins from the EDC system (missing voltage indicates a chassis harness or controller issue)

3. 3

   Check the main earth/ground connections at the battery and the back of the cab (bad grounds are a known cause of intermittent EDC faults)

4. 4

   Use the tractor's onboard diagnostic menu or a dealer service tool to run an EDC sensor test and monitor the live voltage/signal from the draft pins

1. 1

   Reconnect or Repair Wiring

   If the connectors are unplugged, clean the terminals with contact cleaner, apply dielectric grease, and securely reconnect them. Splice and heat-shrink any broken wires in the lower rear chassis harness.

2. 2

   Replace Sensors

   If the wiring and 8V reference voltage are intact but the sensors are dead, remove the lower link arms and replace the defective load sensing pins.

3. 3

   Alternative Bypass

   If the operator only uses the hitch for lifting and does not need draft sensing, install a Draft Load Sensing Pin Elimination Kit to bypass the sensors and feed a dummy signal to the EDC.

4. 4

   Recalibrate the Hitch

   After replacing the pins or repairing the wiring, clear the fault codes and perform the Hydraulic Lift Autocalibration procedure.