New Holland 9006 – EDC: Front Hitch Position Potentiometer Not Calibrated

The control module for the front hitch hydraulics has lost the stored calibration values for the front hitch potentiometer. This sensor translates the rotational movement of the front hitch lift arms into a voltage signal to inform the tractor's computer of the implement's height and position. Without a valid calibration, the system cannot accurately control the hitch's movements, resulting in improper operation or a complete lack of response from the front linkage.

• T6.120
• T6.125
• T6.140
• T6.145
• T6.155
• T6.160
• T6.165
• T6.175
• T6.180
• T7.165
• T7.170
• T7.175
• T7.185
• T7.190
• T7.200
• T7.210
• T7.220
• T7.225
• T7.230
• T7.245
• T7.250
• T7.260
• T7.270
• T8.330
• T6020
• T6030
• T6050
• T6070
• T6080
• T6090
• T7030
• T7040
• T7050
• T7060
• T7070
• 8670
• 8670A
• 8770
• 8770A
• 8870
• 8870A
• 8970
• 8970A
• TS110

1. 1

   Verify that there are no other active fault codes related to the hitch system (such as 9001 or 9002 for sensor shorts or open circuits). Resolve these first.

2. 2

   Inspect the wiring and connectors for the front hitch position sensor for any damage, corrosion, or loose connections.

3. 3

   Ensure the tractor is parked on level ground and stationary before beginning calibration.

4. 4

   Verify the hydraulic oil is at a normal operating temperature (minimum of 38°C or 100°F).

1. 1

   Access Calibration Mode

   Enter the diagnostic or 'H' menu on the tractor's instrument cluster. This may require installing a diagnostic connector or pressing a specific sequence of buttons. Navigate to the front hitch sub-menu, sometimes labeled 'FTPH' (Front Three Point Hitch).

2. 2

   Clear Existing Faults

   Clear any stored fault codes before starting the new calibration sequence.

3. 3

   Initiate Calibration

   Follow the on-screen prompts to start the calibration sequence, which often involves moving the hitch control lever.

4. 4

   Lower the Hitch

   When prompted, fully lower the front hitch arms to their minimum position.

5. 5

   Raise the Hitch

   When prompted, raise the hitch arms to their maximum height so the controller can measure the sensor's voltage at both endpoints to establish the range of motion.

6. 6

   Save Calibration

   Save the new calibration values. This may happen automatically, or it may require a specific action like holding a button or cycling the key off and on to store the settings in memory.

7. 7

   Replace Sensor (if needed)

   If the calibration procedure fails or the code returns, the position sensor (potentiometer) itself may be faulty. Replace the sensor and repeat the calibration process.