How to Deal with the Instrument Panel Not Receiving DCU Messages?

[StAngelo]

When the instrument panel does not receive DCU messages, this fault is more likely to occur when the engine load increases. Analysis suggests that this issue is caused by poor line connections. Possible locations include: 1) Poor connection in the DCU power supply line; 2) Poor connection in the DCU grounding line; 3) Poor connection in the vehicle communication line.