Quote:
Originally Posted by hud 91gt
Well hopefully they can figure it out soon. I'm curious if the ECU steps the voltage down always, or something else is going on there as well.
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Just to be clear, I'm talking about the "certification" ECU, not the main ECU. This fella is responsible for ensuring the vehicle is in park, brake is depressed, etc. - basically all factors that have to be in play before a vehicle is allowed to start.
Anyways, I'm almost certain it is NOT supposed to drop down the voltage, but rather pass it through as-is. Tech's next planned diagnostic steps (whenever this can be reproduced) is to measure the voltage coming in to the certification ECU, and if that's still low, the voltage on either side of the "junction connector" (not sure what this is) that is located behind the glove box area.