C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Pulling trouble codes...

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Old Jan 4, 2003 | 09:40 PM
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Default Pulling trouble codes...

Is there any way to make a corvette show the code number like the Caddies do on the a/c temp display or something?
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Old Jan 4, 2003 | 11:22 PM
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From: sonoma ca
Default Re: Pulling trouble codes... (CarAteMyMoney)

It can be done by grounding specific pins on the DLC or with a scanner. What year do you have?
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Old Jan 4, 2003 | 11:33 PM
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Default Re: Pulling trouble codes... (lou sylvestri)

I think he has an '86. Believe he's out of luck on codes w/o using a scan tool (?)
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Old Jan 4, 2003 | 11:37 PM
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Default Re: Pulling trouble codes... (Lone Ranger)

Could this be done with an 84?? :confused:
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Old Jan 5, 2003 | 02:51 AM
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Default Re: Pulling trouble codes... (Light84vette)

reason I asked is some sneaky individual unplugged the SES light so i couldn't do it with the ALDL connector. i ended up putting the socket from the door ajar lamp there so i could pull the trouble codes with a paper clip :cheers:
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Old Jan 5, 2003 | 02:54 AM
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Default Re: Pulling trouble codes... (CarAteMyMoney)

I dont really get this pulling code thing. DO you put in a computer dyagnostic in the port under the dash of the drivers side for the codes? OR does it display on the LCD? :confused:
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Old Jan 5, 2003 | 03:17 AM
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Default Re: Pulling trouble codes... (Light84vette)

My friend's old caddy used to display em on the A/C LCD but apparently vettes dont do that. All you have to do is touch each end of a paper clip to the correct terminals on the connector (look in a book) and count the flashes... There's an article about it that makes it pretty easy on c4vettes.com
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Old Jan 5, 2003 | 03:34 AM
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Default Re: Pulling trouble codes... (CarAteMyMoney)

Check this site out, for pulling codes from the PCM...
http://www.c4vettes.com/ecm.htm

IMHO the best thing a guy can do is buy a cable from AKM cables for about $80 & then use the free trial version of Datamaster to pull codes, you will get much better Info on what the sensors Etc are reading...
http://www.mindspring.com/~amattei/akmelect.htm http://www.ttspowersystems.com/dm_dload.htm

And BTW the electronic AC controls on the late C4's also have diagnostic capability's for the AC control system, you can actually retrive codes from it also, just like the PCM, just something to keep in mind...

:seeya
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Old Jan 5, 2003 | 11:57 AM
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Default Re: Pulling trouble codes... (superlund)

I normally use a Monitor 2000 but I'm waiting on the right cartridge for it
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