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

VATS Module Schematic

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Old Feb 12, 2019 | 06:52 PM
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Originally Posted by Moisesrage
Orange, black, brown, brown? Mine is different.
Mine is Orange, violet, yellow, brown. Is that the one that would match my key
3740 I'd say - I'm amazed that with the information in the original post that you couldn't figure it out!!! It would be my 'first effort'!!
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Old Feb 12, 2019 | 06:55 PM
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If that is your information, then your key is a number 10.
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Old Feb 12, 2019 | 06:58 PM
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Originally Posted by arbee
If that is your information, then your key is a number 10.
Thanks guys. I was at work when i read the forum. Im going to test this out now.
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Old Feb 16, 2019 | 08:44 AM
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Yup. It was key code 10. 3.74. Car started right up. Thanks everyone.
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Old Feb 16, 2019 | 08:54 AM
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Originally Posted by Moisesrage
Yup. It was key code 10. 3.74. Car started right up. Thanks everyone.
Always good when it 'works'!!!!
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Old Feb 16, 2019 | 08:55 AM
  #26  
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Yes Sir it is!!!
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Old Feb 16, 2019 | 01:10 PM
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Which leads to this question. I have never had the VATS module out or taken apart. How hard is it to access and view the IC board? Possibly this would be another way to identify one's key if needed vs the many alternative ways, ie. locating an interrogator, trying various resistors(and the time delay involved) etc.
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Old Feb 16, 2019 | 01:25 PM
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Originally Posted by arbee
Which leads to this question. I have never had the VATS module out or taken apart. How hard is it to access and view the IC board? Possibly this would be another way to identify one's key if needed vs the many alternative ways, ie. locating an interrogator, trying various resistors(and the time delay involved) etc.
Gotta pull dash pad then remove passenger side "bread box"
It is directly behind the passenger side ac vent thing. Then it will be the resistor directly adjacent to terminal (w) wire. The harness has no wire on terminal (w)
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Old Feb 16, 2019 | 01:34 PM
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Originally Posted by arbee
Which leads to this question. I have never had the VATS module out or taken apart. How hard is it to access and view the IC board? Possibly this would be another way to identify one's key if needed vs the many alternative ways, ie. locating an interrogator, trying various resistors(and the time delay involved) etc.
This would only work for an '86 - '88 module. In '89 the module became a 'learning device' for the service one and I'd imagine that the OE/GM would have also been a learned device in the car. If a person was parting an '86 - '88 car it would certainly aid in making the module likely more salable.
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Old Feb 16, 2019 | 01:45 PM
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Originally Posted by WVZR-1
This would only work for an '86 - '88 module. In '89 the module became a 'learning device' for the service one and I'd imagine that the OE/GM would have also been a learned device in the car. If a person was parting an '86 - '88 car it would certainly aid in making the module likely more salable.
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Old Today | 05:33 AM
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Does anyone still have the VATS_Module_Schematic_Pretty PDF, as the original link is no longer working?
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