Massey Ferguson 04.X.71 – TRANS: Cruise Speed C2 Button Issue (TRANS)

The onboard diagnostic system has detected an irregular, missing, or out-of-range electrical signal coming from the C2 cruise speed/autodrive push button located on the tractor's right-hand console or Command Control armrest.

• 7714
• 7715
• 7715S
• 7716
• 7716S
• 7718
• 7718S
• 7719
• 7720
• 7720S
• 7722
• 7722S
• 7724
• 7724S
• 7726
• 7726S
• Tier 4 (2015-2021)
• 7700
• 7700S
• 5600
• 5700
• 6600
• 6700
• 7600
• 8600
• 8700

1. 1

   Inspect the C2 button for physical damage, sticking, or debris preventing it from returning to its neutral position

2. 2

   Lift the armrest console cover and ensure the connector for the C2 button is securely plugged in and free of corrosion

3. 3

   Use a multimeter to test the micro push button switch for proper electrical continuity when pressed and released

4. 4

   Check the wiring harness running from the armrest to the Transmission controller for any shorts, chafing, or open circuits

1. 1

   Turn off the tractor and disconnect the battery

   to prevent electrical shorts.

2. 2

   Carefully remove the trim or retaining screws on the right-hand Command Control armrest

   to expose the underside of the switch panel.

3. 3

   Locate the C2 cruise speed button and unplug its numbered electrical connector.

4. 4

   Unclip or push out the faulty push button switch from its mounting hole in the console.

5. 5

   Snap the new OEM push button switch into place.

6. 6

   Reconnect the numbered wire plug to the new switch.

7. 7

   Reassemble the armrest console trim.

8. 8

   Reconnect the battery, turn on the tractor, and clear the DTC codes

   using the tractor's diagnostic screen or a specialized diagnostic tool.

9. 9

   Test the C2 button by pressing it and using the scroll wheel

   to verify it correctly sets the highest gear for the autodrive system on the dash display.