New Holland 2056 – Transmission Control Module: Shuttle Lever Forward Switch Voltage Low

The system has detected a low voltage signal from the shuttle lever's forward position switch. The transmission control module is not receiving the expected voltage when the shuttle lever is in the forward position, which can lead to a delay in recognizing the gear selection.

• T5040
• T5050
• T5060
• T5070
• T4000 Series
• TL70A
• TL80A
• TL90A
• TL100A
• TM115
• TM120
• TM125
• TM130
• TM135
• TM140
• TM150
• TM155
• TM165
• TM175
• TM190
• TS100A
• TS110A
• TS115A
• TS125A
• TS135A
• TS90
• TS100
• TS110
• TS115
• JX1060C
• JX1070C
• JX1070U
• JX1075C
• JX1080U
• JX1090U
• JX1100U
• MXM190

1. 1

   Ensure the battery is fully charged (above 12.1V) and that the main ground strap to the chassis is clean and secure, as the electronics are sensitive to voltage drops.

2. 2

   Perform an H-Menu Switch Test using a diagnostic switch tool (Part No. 4FT 950) connected to the diagnostic connector. Select the 'H5' routine and operate the shuttle lever to verify switch operation via the instrument cluster display and audible tone.

3. 3

   Visually inspect the shuttle lever, its wiring harness, and connectors for any signs of damage, corrosion, or loose connections.

1. 1

   Prepare machine for service

   Disconnect the battery and ensure the tractor is on a level surface with the parking brake engaged.

2. 2

   Access the shuttle lever

   Remove the steering column covers to access the shuttle lever assembly.

3. 3

   Disconnect the old switch

   Disconnect the electrical connector from the shuttle lever switch. Disconnect the mechanical linkage or cable from the lever (a video for a Workmaster 75 shows that this may involve removing a cotter pin to release the lever).

4. 4

   Remove the old lever assembly

   Remove the mounting bolts securing the lever assembly to the steering column and take out the old assembly.

5. 5

   Install the new lever assembly

   Position the new shuttle lever assembly and secure it with the mounting bolts.

6. 6

   Reconnect and adjust

   Reconnect the electrical connector and the mechanical linkage or cable. Adjust the cable tension if applicable.

7. 7

   Reassemble and test

   Reassemble the steering column covers, reconnect the battery, and test the operation of the shuttle lever. Clear the fault code from the system.