New Holland 3674 – ENGINE: EGR Under Voltage Error for H-bridge

The system has detected an under voltage condition related to the EGR (Exhaust Gas Recirculation) circuit for the H-bridge. This fault indicates that the voltage supplied to the EGR component is below the expected level, which may affect the proper operation of the system.

1. 1

   Power supply to the EGR component

2. 2

   Wiring and connections related to the EGR circuit

3. 3

   Voltage levels at the EGR component

1. 1

   Check the power supply

   Verify that the power source for the EGR component is providing the correct voltage as specified in the service manual.

2. 2

   Inspect wiring and connections

   Examine the wiring and connections associated with the EGR circuit for any damage, corrosion, or loose contacts.

3. 3

   Measure voltage at the EGR component

   Use a multimeter to measure the voltage at the EGR component and compare it to the expected range.