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40-BCM and 10-PCM showing codes...

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Old Jan 11, 2005 | 07:25 PM
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Default 40-BCM and 10-PCM showing codes...

Check engine popped up probably because of the P0420 HC

then when I check codes I also showed the following
B0502 HC
B0507 HC
B2482 HC

any help...?
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Old Jan 11, 2005 | 07:40 PM
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Originally Posted by stuart
Check engine popped up probably because of the P0420 HC

then when I check codes I also showed the following
B0502 HC
B0507 HC
B2482 HC

any help...?
LH DRL Relay circuit, RH DRL Relay circuit, Backup Lamp Relay circuit

So...have you pulled a fuse or blown a fuse lately?
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Old Jan 11, 2005 | 07:44 PM
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http://www.corvettedoctor.com/Codes_Page.htm
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Old Jan 12, 2005 | 09:55 PM
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Originally Posted by Paladin
LH DRL Relay circuit, RH DRL Relay circuit, Backup Lamp Relay circuit

So...have you pulled a fuse or blown a fuse lately?
nope...I mean I havent check for blown fuses but I havent change any or ugh uh...tampered with any in a long while...

I took the interior out of StuzVette a couple weekends ago...but made certain that every connector was very secure...

The #2 fuse I removed to be able to drive stealth...and of course is not installed to this day...uhhhh...hmmmm

I wonder if that code has been coming up since that time....

...I dont ususally pull codes...but Im capable and generally performing the work if my garage is adequate for the reapir or maintenance

So if this is the first time I have seen "check engine" light come on...
...it would seem that the BCM codes are coincidental with the pulling of the #2 fuse under the hood...
...and perhaps that is why I understand to make the american made vettes meet the "NO DRL" laws in Europe the procedure is to remove several relays and jump the exclusion of DRL lights by jumpering the open clip plugs...

Which would naturally leave the most likely candidate for the cause of the "check engine" light to be a problem with the way the computer is reading the unacceptable emission gasses according to that code P0420

...comments...reprovals... please
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Old Jan 12, 2005 | 10:07 PM
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You got it.

The PCM code is what tripped the check engine light, not the BCM codes.

The check engine light will come on whenever an emissions-related code is tripped. In this case, the P0420.

I wouldn't worry about the BCM codes, since they are obviously to do with your "stealth" fuse removal modification.

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Old Jan 13, 2005 | 08:37 AM
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I have the same codes. What fuses should I check and (stupid question), where are they located?
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Old Jan 13, 2005 | 10:18 AM
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Originally Posted by Y2Kvert4me
You got it.

The PCM code is what tripped the check engine light, not the BCM codes.

The check engine light will come on whenever an emissions-related code is tripped. In this case, the P0420.

I wouldn't worry about the BCM codes, since they are obviously to do with your "stealth" fuse removal modification.


thanks...

Originally Posted by RedRider98
I have the same codes. What fuses should I check and (stupid question), where are they located?
the #2 fuse is under the hood...
before you look:
...if your DRL lights are working that then the fuse is fine!

then the BCM is behind the kick panel in the passenger floorboard...
there are 2 relays that could be malfunctioning...

lets start with Fuse#2 first...

Last edited by StuzVette; Jan 13, 2005 at 10:20 AM.
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