Engine check light
As the tittle says I am now looking as to why the dash engine check light does operate ,I have traced it down the the wire in the engine loom (Brown/black tracer) which has just been taped up in the the loom and not connected .
Looking at a wiring diagram it looks like the wire from the data plug (brown /white tracer) is the output from the ecu to control the check light .
I think that by connecting the wire from the dash bulb in the engine harness with the wire from the data plug should operate it
Has anyone any info on this circuit .