CLAAS 75C7h – Claas Tr1 A57 1 Transmission Module: Reverse Gear Solenoid Valve Current Exceeds 1.4 A

The current consumed by the reverse gear solenoid valve is greater than the maximum allowable value of 1.4 A. This may trigger an audio warning and request an

1. 1

   The solenoid valve if 301/302 are not shown

2. 2

   A possible 12 V short circuit on the solenoid valve power supply harness

3. 3

   The resistance of the solenoid valve winding

1. 1

   Check the solenoid valve

   If 301/302 are not shown, inspect the solenoid valve for faults.

2. 2

   Inspect the power supply harness

   Look for a possible 12 V short circuit on the solenoid valve power supply harness.

3. 3

   Measure the resistance of the solenoid valve winding

   Use appropriate tools to check the resistance of the solenoid valve winding.

4. 4

   Test the “Auto 5” module

   Use tool n° 60 05 033 249 to test the “Auto 5” module and replace it if required.