Case IH 56098 – Transmission Controller (TRANS): The Select Shift Switch is ON at power up

This fault code indicates that the transmission select shift switch was detected as closed (the button was depressed or the circuit was completed) during the transmission controller's initial power-up sequence.

• STX Steiger
• Case IH STX Series Tractors
• Case IH Steiger Series
• Case IH Puma Series

1. 1

   Verify that the operator did not accidentally rest their hand on or depress the select shift switch while turning the ignition key to the ON position

2. 2

   Disconnect the select shift switch and test it with a multimeter (should have no continuity when released, and continuity when depressed)

3. 3

   Check the wiring harness from the switch to the transmission controller (or armrest controller) for a short to power

4. 4

   If equipped with an armrest controller, check for a software execution error within the armrest controller itself

1. 1

   Clear and Retest

   Turn the tractor off. Turn the key back to the ON position while ensuring absolutely no pressure is applied to the transmission shift controls. If the code does not return, the issue was operator error during startup.

2. 2

   Test the Switch

   If the code remains active, remove the transmission control handle/panel to access the select shift switch. Unplug the switch connector and perform the continuity test described above.

3. 3

   Replace the Switch

   If the switch shows continuity when the button is released (stuck closed), the internal spring or contact has failed. Replace the select shift switch.

4. 4

   Inspect and Repair Wiring

   If the switch tests good, use a multimeter to check the voltage on the switch signal wire going back to the controller. If it shows voltage when it shouldn't, trace the wiring harness down the armrest and into the cab routing to find where the wire is chafed and shorting to a power source. Repair the damaged wire.

5. 5

   Controller Software Update

   If the switch and wiring are both in perfect condition on a Deluxe/Luxury model, connect the tractor to the Case IH Electronic Service Tool (EST) to check for software updates or execution errors in the Armrest Controller. Reflash the controller if necessary.