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#1 |
![]() Join Date: Jan 2006
Location: Decatur, AL
Posts: 1,112
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Does anyone have a picture or currently working on any 91+ car with access to the valet switch and harness? I am starting to stash a few parts away for a project later this year. I want to know if a 91+ valet switch and pigtail can be modified to work on a 90. I plan on pulling the dash out when the weather cools off and replacing dash harness due to one of my Bose drain is broken at the CDM and causing a super low hum at idle speeds and the radio on but no volume turned up. So, yes, no one would ever notice , yes you can't hear it with any audio volume on (radio/cd playing etc), but it bugs me so going to fix it and I was thinking about swapping the valet switch (I have all the LT5 bezels I need) for a 91+ and wondered if A "would a 91+ valet switch could be pinned to work on a 1990 dash harness or B would a 91 dash harness work on my 90 with the different valet key switch. Lastly, if anyone knows, I don't think GM ever made a or offered a separate dash harness just for the 90-93 CDM? I know the rear Bose harness was available with its own part# . Thanks (Also)- anyone here have a 91+ valet switch and key for sale?
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Corvette95 Registry and Forum (*************) 1989 C4 Conv Wht/Gry Auto Hardtop Top Flight SOLD 1995 C4 Coupe Purple/Blk 6 Speed 1989 C4 Conv Wht/Red Auto SOLD 1996 C4 Conv Black/Tan Auto SOLD 1994 C4 Coupe Wht/Blk SOLD 1995 C4 ZR-1 White/Gry #278 Dual Dunn Head SOLD 1986 C4 Coupe Black/Red 4+3 SOLD 1990 C4 ZR-1 Red/Red #0454 |
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#2 | |
![]() Join Date: Jul 2007
Location: Bartlett, IL
Posts: 7,154
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A. You would not be able to pin it correctly.. using an Arduino, Raspberry Pi Pico, you could create code to emulate the function of the 1990 switch buy using a relay or Opto-isolator B No, not that simple, Power key on the 91-95 is wired to the ECM differently than the 1990
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1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Custom Interior NCM Lifetime Member #978 |
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#3 | |
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Location: Peoria, AZ
Posts: 9,154
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GOLDCYLON - 91 ZR-1 #2014 GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's) GOLDCYLON - 11 CTS-V Arizona State Director ![]() 91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat 90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat 11 RED/GREY CTS-V |
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#4 |
![]() Join Date: Jan 2006
Location: Decatur, AL
Posts: 1,112
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Thanks for the replies. I know about the valet switch module behind the bezel. That is why I thought I could swap harnesses - I have the switch . I am really looking for a NOS 90 dash harness if anyone here has one. Thanks again!
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Corvette95 Registry and Forum (*************) 1989 C4 Conv Wht/Gry Auto Hardtop Top Flight SOLD 1995 C4 Coupe Purple/Blk 6 Speed 1989 C4 Conv Wht/Red Auto SOLD 1996 C4 Conv Black/Tan Auto SOLD 1994 C4 Coupe Wht/Blk SOLD 1995 C4 ZR-1 White/Gry #278 Dual Dunn Head SOLD 1986 C4 Coupe Black/Red 4+3 SOLD 1990 C4 ZR-1 Red/Red #0454 |
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