CLAAS 7791h: Reference Voltage of EGR Valve Position Sensor Low

The reference voltage (5V) for the EGR exhaust gas recycling valve position sensor is low. The ENG (A15) engine calculator is attempting to operate normally despite this condition.

1. 1

   The wiring and connections to the EGR exhaust gas recycling valve position sensor

2. 2

   The power supply to the EGR exhaust gas recycling valve position sensor

3. 3

   The EGR exhaust gas recycling valve position sensor itself

1. 1

   Inspect

   Inspect the wiring and connections to the EGR exhaust gas recycling valve position sensor for damage, corrosion, or loose connections.

2. 2

   Test

   Test the power supply to the EGR exhaust gas recycling valve position sensor to ensure it is receiving the correct voltage.

3. 3

   Check

   Check the EGR exhaust gas recycling valve position sensor for proper operation and functionality.