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

1988 C100 pinout needed

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Old Jun 15, 2012 | 08:32 PM
  #1  
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smeds
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Default 1988 C100 pinout needed

My son and I are having a problem with the pinout on a harness we bought and need to check the pinout before we install, the car is all original, the original harness was sold, we bought this to replace the original.

Our project is a 1988 corvette

Thanks
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Old Jun 16, 2012 | 03:54 AM
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http://willcoxcorvette.com/repairand...lp.php?hID=282
Maybe
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Old Jun 16, 2012 | 07:41 AM
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leesvet
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If there is still any question, Call Painless Wiring and see if they can provide a drawing or whatever harness you need. The easy way is to lay the harness on a sheet of plywood, use a sharpie to draw in the sensors and plug-ins and lay the harness out accordingly. That way you can easily trace each section for fit & placement, and visually inspect every inch. This also gives you a place to note the plug in type and pins to double check before the install where it gets harder.Tape up and secure any splices and harness divisions. Later you cannot get to most after install... If you DO need a replacement section, NOW is the time when its laid out and NOT when its half hidden in the car.
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Old Jun 16, 2012 | 09:46 AM
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Here is the C100 pin out for a 89. I'd assume the 88 is similar.

The Pin outs refer to the page in the service manual where the
actual circuit schematic is shown.

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Old Jun 16, 2012 | 11:02 AM
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Thanks for your help we will inspect the harness today
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Old Jun 16, 2012 | 12:09 PM
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'89 is different though some of those differences are in the Electrical Supplement. Basically, the Dash ground is no longer in C100 because the Connector is prone to water intrusion and everything in the lower half was corroding away. Still, I'd get an '88 (and hopefully your replacement harness came from an '88).
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