New Holland 3358: Engine Control Unit (ECU) secondary CAN bus failure

The Engine Control Unit (ECU) is unable to communicate with sensors via the secondary CAN bus. This may indicate a problem with the communication link between the ECU and the sensors.

1. 1

   The connection between the Engine Control Unit (ECU) and the sensors

2. 2

   The integrity of the secondary CAN bus wiring

3. 3

   The functionality of the Engine Control Unit (ECU)

1. 1

   Inspect

   Inspect the connection between the Engine Control Unit (ECU) and the sensors for loose or damaged wiring.

2. 2

   Test

   Test the integrity of the secondary CAN bus wiring for continuity and proper signal transmission.

3. 3

   Verify

   Verify the functionality of the Engine Control Unit (ECU) using diagnostic tools or by replacing it with a known good unit.