Help Center

E30 Controller Communication Error

The controller has no signal output to the display or a poor connection exists between the controller and the display. Check all cable connections between the controller and the display and that the cables/ connectors are undamaged and not contaminated with grit. If this does not resolve the issue, one of the following parts may need to be replaced until the error resolves: display, controller, and wiring harness.

E30 Flow ChartÂ