CLAAS 774Ah: No Signal from Crankshaft Position Sensor

The crankshaft position sensor is not providing a signal to the engine calculator. As a result, the engine power is reduced by 20% per minute until it reaches 50% of its nominal power. Power is recovered at a rate of 20% per minute once the signal is restored.

1. 1

   The crankshaft position sensor for the engine

2. 2

   The wiring and connections to the crankshaft position sensor

3. 3

   The engine calculator for proper operation

1. 1

   Inspect the crankshaft position sensor

   Check for physical damage, proper installation, and alignment with the crankshaft.

2. 2

   Check the wiring and connections

   Ensure all wiring and connectors related to the crankshaft position sensor are intact, clean, and securely connected.

3. 3

   Test the engine calculator

   Verify that the engine calculator is functioning correctly and receiving input from the crankshaft position sensor.