Case IH 2058 – Transmission Controller: SHUTTLE LEVER REVERSE SWITCH VOLTAGE LOW

The controller is detecting that the voltage signal coming from the reverse switch on the forward/reverse shuttle lever (often referred to as the FNRP Pod) is below the acceptable threshold. This condition is typically caused by a short to ground, an open circuit in the wiring, or an internal failure of the switch itself.

• Farmall
• MX Series
• TG Series
• Maxxum Series
• Puma Series
• Steiger Series
• CS Pro Series
• CVX Series
• JX Series
• LRX Series

1. 1

   Cycle the shuttle lever back and forth several times to free up potentially stuck internal switch contacts.

2. 2

   Perform an operational test by trying to drive the tractor forward to see if the transmission responds and registers the forward switch correctly.

3. 3

   Inspect the wiring harness and connectors between the shuttle lever and the transmission controller for chafed wires (short to ground) or broken wires (open circuit).

4. 4

   Use a multimeter to probe the reverse switch output at the connector to verify if the voltage drops too low when the lever is moved into the reverse position.

1. 1

   Park the tractor on a level surface, turn off the engine, and disconnect the battery to prevent electrical shorts.

   Park the tractor on a level surface, turn off the engine, and disconnect the battery to prevent electrical shorts.

2. 2

   Remove the steering column covers or the side console panel (depending on the model) to access the base of the forward/reverse shuttle lever assembly.

   Remove the steering column covers or the side console panel (depending on the model) to access the base of the forward/reverse shuttle lever assembly.

3. 3

   Disconnect the electrical harness plugged into the shuttle lever switch.

   Disconnect the electrical harness plugged into the shuttle lever switch.

4. 4

   Inspect the connector pins for corrosion, pushing out, or damage. If the harness is damaged, repair the wiring.

   Inspect the connector pins for corrosion, pushing out, or damage. If the harness is damaged, repair the wiring.

5. 5

   If the wiring is intact, the switch assembly has failed internally. Remove the retaining pin or mounting screws holding the shuttle lever switch assembly in place.

   If the wiring is intact, the switch assembly has failed internally. Remove the retaining pin or mounting screws holding the shuttle lever switch assembly in place.

6. 6

   Remove the old shuttle lever assembly and install the new replacement switch assembly.

   Remove the old shuttle lever assembly and install the new replacement switch assembly.

7. 7

   Reinstall the retaining pin/screws and plug the electrical harness back into the new switch.

   Reinstall the retaining pin/screws and plug the electrical harness back into the new switch.

8. 8

   Reassemble the steering column covers or console panels.

   Reassemble the steering column covers or console panels.

9. 9

   Reconnect the battery, turn the key on, and clear the stored fault codes. Test the forward and reverse functions to ensure code 2058 does not return.

   Reconnect the battery, turn the key on, and clear the stored fault codes. Test the forward and reverse functions to ensure code 2058 does not return.