CLAAS 7542h: Voltage of the signal sent by the (+) contact for speed range shifting too low

The voltage of the signal sent by the (+) contact for speed range shifting is below the required level. This results in the (+) contact for speed range shifting being inactive, which may affect the operation of the C-Matic system.

1. 1

   The voltage of the signal sent by the (+) contact for speed range shifting

2. 2

   The condition of the (+) contact for speed range shifting

3. 3

   The connection and wiring related to the (+) contact for speed range shifting

1. 1

   Measure the voltage of the signal sent by the (+) contact for speed range shifting

   Use a multimeter to measure the voltage at the (+) contact for speed range shifting. Compare the reading to the specifications provided in the service manual.

2. 2

   Inspect the (+) contact for speed range shifting

   Check the physical condition of the (+) contact for speed range shifting for signs of damage, wear, or corrosion.

3. 3

   Check the wiring and connections related to the (+) contact for speed range shifting

   Inspect the wiring and connectors associated with the (+) contact for speed range shifting for loose, damaged, or disconnected components.