Case IH U180 – Transmission Control Unit (TCU): Calibration value too low

During a transmission calibration routine, a sensor (such as a damper or twist sensor) or a solenoid (such as a clutch solenoid) returned a value below the minimum acceptable threshold.

• Puma
• Optum
• Magnum

1. 1

   Inspect the wiring harness and connectors for the transmission sensors and clutch solenoids for shorts, breaks, or corrosion.

2. 2

   Verify the physical installation of the sensors and dampers to ensure they are not installed incorrectly.

3. 3

   Check the transmission and driveline for underlying mechanical binding or damage.

1. 1

   Repair or replace wiring

   Repair or replace any damaged wiring on the clutch solenoid or sensor circuits.

2. 2

   Replace sensor or solenoid

   If the wiring is intact, replace the damaged sensor or clutch solenoid.

3. 3

   Correct installation

   Correct any wrong installation of the damper or sensor.

4. 4

   Repair mechanical problems

   Repair any mechanical problems on the driveline or clutch.

5. 5

   Re-run calibration

   Re-run the CVT or SPS calibration routine.