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

Decklid release button

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Old Dec 26, 2021 | 12:02 PM
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Default Decklid release button

Have a 90 convertible. There is a decklid release button located on the underside of the decklid behind the drivers seat which doesn’t work. Release switches on both doors and inside the console work fine. When I went to research this in 8A of the SM the wiring for that switch isn’t indicated anywhere. Wire harness runs thru the decklid and exits on the passenger side then looks like it runs under the carpet. Was this an afterthought that didn’t make it to the manual?

Anyone familiar with this switch?
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Old Dec 26, 2021 | 12:25 PM
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It was on every convertible I worked on right from the delivery car carrier, follow the wire into the carpet I will bet there is a plug. Do a circuit continuity test on hatch switch and a voltage test on car side and work from there
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Old Dec 26, 2021 | 12:46 PM
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Ok thanks, I’ll do the continuity and voltage tests. Strange it’s not in the manual.
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Old Dec 26, 2021 | 01:38 PM
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An M6 car or an A4? The switch grounds either through Park Brake or NSS. Is there a BWN or BRN/WHT wire to the switch? That wire if terminated correctly at relay should be B+ voltage.

It's in an '89 FSM, disappears '90, '91 & '92 it seems and reappears in the '93 FSM.

In a '90 FSM take a look at 8A-41-0. Is that maybe intentioned to be the switch on the lid?

Last edited by WVZR-1; Dec 26, 2021 at 01:53 PM.
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Old Dec 26, 2021 | 01:54 PM
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It’s an A4. Don’t know the wiring colors as I haven’t started to work it yet. What is B+ voltage? Thanks for the info.
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Old Dec 26, 2021 | 03:45 PM
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Originally Posted by abuonagura
It’s an A4. Don’t know the wiring colors as I haven’t started to work it yet. What is B+ voltage? Thanks for the info.
Depending on how it's fused but I'd think it safe to assume with KO (Key On) you should display 'power' with test lamp.
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