Does anyone know what this plug/connector is for and why it's disconnected? 🤷
And what is the purpose/why would one want to run diagnostic mode?It's supposed to be disconnected. If you connect it the ECU goes into diagnostic mode.
i can image how you felt :biggrin: something like this - :icon_eek:I connected it while I was installing my stereo. I thought I disconnected it somehow. When I turned on the car, I almost had a heart attack! lights blinking, fan turning on and off! Don't do it!
Thanks TC2000. Have disconnected them. Unfortunatley no change in the Flashing Cruise, Steady CEL and Steady Stability Control Off warning that have come on in the last two days.If its the same plugs in the first pictures, yes unplug them..