Audi Repair Questions? Ask a Mechanic for Answers ASAP
Hello there I'm Wolfgang.
I do need to know if you turn on the key does the check engine light come on in the instrument cluster?
Ok the Ecu is not getting power or the ground is not there. I do need a vin # ***** get the wiring diagram to assist.
WILLIE , was there any recent inspection of the fuses by you where you pulled them out and then reinstall them?
you do the sme and let me know if you need any more help !! have a safe one
Ok we need to check voltage and ground at the ecm
Let me get the pins to check that.
sorry pin #21, 55,56,62 should be 12 volts
pin 1 and 2 brown wires should be ground
let me know what you have at the ecm
56 is for the brake light signal so that does not matter. is your ground good? pin 1 and 2?
did you check the ecu power supply relay?
in the pic i have sent #3 in the plenum box..
Yes. The Ecu controls the coils so with the check engine light not coming on like you have stated it will not fire
nex to the ecu
should click and then stay energized when the key is on!!