CLAAS 7739h: Input voltage of the engine

The fault code indicates an issue with the input voltage of the engine. The engine runs normally, but the input voltage may be outside the expected range.

1. 1

   Input voltage of the engine

2. 2

   The affected circuit

1. 1

   Check the input voltage of the engine

   Use a multimeter to measure the input voltage of the engine and compare it to the specifications provided in the service manual.

2. 2

   Inspect the affected circuit

   Visually inspect the wiring and connections related to the input voltage of the engine for any signs of damage, corrosion, or loose connections.