New Holland NH 1008 – Central Controller (XCM), Tractor Controller Unit (TCU), or Armrest Controller Module (ACM) / Hitch Controller: Raise / Work Switch Failure

The main lift/lower control switch (fast raise/work switch) located in the cab's command arm or control console has failed. The electronic control module has detected that the switch is either open-circuited, shorted, or sending an invalid command signal.

• T5.95
• T5.105
• T5.115
• T7.220
• T7.235
• T7.250
• T7.260
• T7.270
• TM115
• TM120
• TM135
• TM150
• TM175
• TM190
• T6010
• T6020
• T6030
• T6050
• T6070

1. 1

   Perform an interactive switch test via the tractor's diagnostic menu (e.g., menu H5) to verify if the controller receives the switch signal

2. 2

   Check the wiring harness connecting the raise/work switch to the central controller for continuity, open circuits, or shorts to ground/power

3. 3

   Verify the central controller (XCM) functionality if the switch and harness both test normal

1. 1

   Turn off the tractor and ensure the hydraulic system is safe and lowered.

2. 2

   Access the command arm or side control console where the fast raise/work switch is mounted.

3. 3

   Carefully remove the console trim or switch bezel to expose the switch body and wiring.

4. 4

   Disconnect the wiring harness connector from the faulty raise/work switch.

5. 5

   Remove the faulty switch (sender) from the panel.

6. 6

   Install the replacement switch into the console and reconnect the wiring harness.

7. 7

   Reassemble the command arm or control console trim.

8. 8

   Turn the tractor on, clear the stored error code from the diagnostic menu, and test the hydraulic lift system to ensure normal operation.