New Holland 2058 – Transmission Control Module: Shuttle Lever Reverse Switch Voltage Low

The transmission control module has detected an abnormally low voltage signal from the reverse switch within the shuttle lever assembly. This indicates a potential short circuit to ground or an open circuit in the electrical circuit responsible for signaling the operator's intent to move in reverse, which may affect the proper operation of the reverse function.

• TL70A
• TL80A
• TL90A
• TL100A
• T5030
• T5040
• T5050
• T5060
• T5070
• T6010
• T6020
• T6030
• T6040
• T6050
• T6060
• T6070
• T6080
• T7.170
• T7.185
• T7.220
• T7.235
• T7.250
• T7.260
• T7.270
• TM115
• TM120
• TM125
• TM130
• TM135
• TM140
• TM150
• TM155
• TM165
• TM175
• TM190
• TS80
• TS90
• TS100
• TS110
• TS115
• TS100A
• TS110A
• TS115A
• TS125A
• TS130A
• TS135A

1. 1

   Visually inspect the wiring harness leading to the shuttle lever for any signs of damage, such as chafing, cracked insulation, or corrosion, paying close attention to the connector at the base.

2. 2

   Disconnect the shuttle lever connector and inspect the pins and terminals for corrosion, moisture intrusion, or a loose fit. Clean the connections if necessary.

3. 3

   Disconnect the battery to prevent electrical shorts, then prepare to test the switch.

4. 4

   Perform a continuity test on the reverse switch contacts using a multimeter. There should be no continuity when the lever is in neutral or forward, and continuity (close to zero ohms) when moved to the reverse position. If it fails this test, the switch is likely faulty.

1. 1

   Safety First

   Park the tractor on a level surface, engage the parking brake, and disconnect the battery.

2. 2

   Access the Shuttle Lever

   Remove any steering column shrouds or dash panels necessary to gain access to the shuttle lever assembly and its electrical connector.

3. 3

   Document Wiring

   Before disconnecting, take a clear photo of the wire positions on the connector to ensure correct reassembly.

4. 4

   Perform Diagnostic Checks

   Carry out the diagnostic checks listed above to confirm if the fault lies with the switch itself or the wiring.

5. 5

   Replace the Shuttle Lever Assembly

   If the switch is determined to be faulty, disconnect the electrical connector, unbolt the shuttle lever assembly from the steering column, install the new shuttle lever assembly ensuring it is securely fastened, and reconnect the electrical connector.

6. 6

   Reassemble and Test

   Reinstall any panels or shrouds that were removed. Reconnect the battery and turn the key to the 'ON' position. Clear any stored fault codes using the tractor's diagnostic menu or a service tool, if available. Start the tractor and test the shuttle lever's operation in both forward and reverse to ensure the repair was successful.