Case IH ATC122: Power Supply Circuit Issue for Mode Selection Potentiometer

The fault code indicates an issue with the power supply circuit connected to the mode selection potentiometer. This could result in improper operation or failure of the potentiometer.

1. 1

   Power supply connection to the mode selection potentiometer

2. 2

   Wiring between the mode selection potentiometer and the controller

3. 3

   Voltage levels at the mode selection potentiometer

1. 1

   Inspect

   Check the power supply connection to the mode selection potentiometer for looseness, damage, or corrosion.

2. 2

   Inspect

   Examine the wiring between the mode selection potentiometer and the controller for breaks, shorts, or damage.

3. 3

   Test

   Measure the voltage at the mode selection potentiometer to ensure it is within the expected range.