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Old 08-01-2011, 12:18 AM
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No OBD port power?

Something weird happened to my car today. I was going to turn my car on and i had to crank it for more than 4 seconds in order for it to start. I turned it off and tried turning it on again, but it did the same thing. The amber service light came up so i went ahead and grabbed my OBD reader and the device wouldnt power on. i thought it may have been the reader but i tried it on my truck and the reader did work on it, but not my alty? I checked all the fuses under the dash and none of them are blown. I let the car sit for about 1 and a half in my drive way, and i went to turn it on and Poof! it turned on right away and no more service light but i still have no power coming from the OBD connection? Anything thoughts?
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Old 08-01-2011, 12:50 AM
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A fuse under the hood maybe?

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Old 08-01-2011, 12:55 AM
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i bet yer ecu is fried... extra crispy...
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Old 08-01-2011, 02:36 AM
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so everything in the car can be running fine even though the ecu is fried? My gauges are reading normal and everything is running fine tho.
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Old 08-01-2011, 04:26 AM
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Quote:
Originally Posted by carlos9032 View Post
so everything in the car can be running fine even though the ecu is fried? My gauges are reading normal and everything is running fine tho.
that's what happened to my dad's chevy astro van...
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Old 08-01-2011, 03:30 PM
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what could have caused it to fry, I bought it used and it had 80K miles on it?

On a side note: I know the ecu is located behind the glove box, but is it directly bhind it when there are two latches that say push. It looks like a housing.

Last edited by carlos9032; 08-01-2011 at 03:38 PM.
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Old 08-02-2011, 02:29 AM
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Quote:
Originally Posted by carlos9032 View Post
I know the ecu is located behind the glove box, but is it directly bhind it when there are two latches that say push. It looks like a housing.
NOOOOOOO. That is the cabin air filter.
The ecu is actually on the side of the glove box next to the passenger side door and the side vent.
I do have 2 questions?
Is the scanner an OBD1 reader or an OBD2 reader? Have you used it on the car to read a code before? You might have bent a prong on the cable. The car would not run correctly if the ecu was fried chicken.
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Old 08-02-2011, 02:54 AM
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Quote:
Originally Posted by SE-R Altima Driver View Post
NOOOOOOO. That is the cabin air filter.
The ecu is actually on the side of the glove box next to the passenger side door and the side vent.
I do have 2 questions?
Is the scanner an OBD1 reader or an OBD2 reader? Have you used it on the car to read a code before? You might have bent a prong on the cable. The car would not run correctly if the ecu was fried chicken.
Thats the thing....The car runs fine, i was going to see if i could reset the ecu, but i need to figure out how to do that. As for the reader I checked on my truck to see if my reader was broken but it does work. I stilll cant figure out. I checked all the fuses inside the dash and one fuse block under the hood. I cant check the fuses on the other side of the battery because there is no way my hand can fit in there and grab each one individually.

Last edited by carlos9032; 08-02-2011 at 02:59 AM.
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Old 08-07-2011, 05:45 AM
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Well i went ahead and tried to read the codes manually using the acceleration pedal depression procedure and came out with two codes....P0725 and P0335 which when i searched on google came up with alot of threads about the subject. But my question is could this be related to my OBD not being to get any power?
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