Case IH FC5 – Transmission Controller / EDC (Electronic Draft Control) or Secondary Controller (CFPS): Creeper Travel Out Of Range

The transmission controller is detecting that the creeper gear mechanism has moved beyond its calibrated or expected physical range.

• MXM
• Case IH MXM 120
• Case IH MXM 130
• Case IH MXM 140
• Case IH MXM 155
• Case IH MXM 175
• Case IH MXM 190

1. 1

   Verify if any other error codes are being displayed on the dash. If other codes are present, perform the diagnostic tests for those codes first.

2. 2

   Inspect the physical adjustment of the creeper mechanism to see if it has slipped out of its mechanical range.

1. 1

   Adjust the end of range bolts

   Physically adjust the end of range bolts on the creeper mechanism to bring the travel back into the correct specification.

2. 2

   Re-perform the creeper calibration

   Once adjusted, run the transmission/creeper calibration procedure.

3. 3

   Test the potentiometer

   If the fault re-occurs after calibration, check the creeper potentiometer for electrical faults (such as a short circuit to +8V/+12V or an open circuit/short to ground).

4. 4

   Replace faulty components

   If the potentiometer fails the resistance/voltage tests, replace it.

5. 5

   Check for mechanical/controller faults

   If the potentiometer is functioning correctly and the code persists, the failure mode is likely a deeper mechanical fault within the transmission or a faulty secondary controller (CFPS).

6. 6

   Clear the code

   Once the root cause is rectified, clear the error code and test the tractor for normal operation.