CLAAS 774Ah – Claas Eng A15 Engine Module: No Signal from Crankshaft Position Sensor

The crankshaft position sensor is not sending a signal. The engine module reduces engine power by 20% per minute until it reaches 50% of its nominal power. Power is recovered at 20% per minute once the issue is resolved.

1. 1

   The crankshaft position sensor (B231)

2. 2

   The engine module ENG (A15)

1. 1

   Inspect

   Check the crankshaft position sensor (B231) for damage, loose connections, or misalignment.

2. 2

   Test

   Test the crankshaft position sensor (B231) for proper operation using the appropriate diagnostic tools.

3. 3

   Verify

   Verify the connection and functionality of the engine module ENG (A15).