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Most of the time when the ECU seems dead with key on, the ECCS circuit is faulty.
Once the ECU sees ignition key on (black/red wire to 12V), it will send a ground signal from pin 4 to the ECCS relay, which will then power the sensors, including the ECU.
If that signal is not generated by the ECU, the whole system will look completely dead.
As suggested above, first step is to see if the ignition wire gets 12V. Its at the GREY 8-pin plug by the pass headlight. Check the RED wire for constant 12V. If both check out, i would say the ECCS is next. The small red/black wire in the brown connector by the headlight is the control wire. If it sees ground, i am sure all will come alive.
Any questions, just hit us up...
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03-17-2014, 08:39 PM
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