Under dash relay?
Thread Starter
Junior Member
Joined: Feb 2022
Posts: 38
Likes: 1
From: Ontario, Canada
Car: 1988 TransAm GTA, 1983 firebird SE
Engine: 350,305
Transmission: 700r4x2
Axle/Gears: 327
Under dash relay?
Trying to figure out why my speedometer doesn’t work on my 88GTA…because the friggen yellow module isn’t there…
while in there, I found this. Trying to understand what the previous owner was accomplishing and what this is for.
while in there, I found this. Trying to understand what the previous owner was accomplishing and what this is for.
Joined: Jul 2006
Posts: 1,279
Likes: 512
From: Rochester NY
Car: 1984 TA (1 stock / 1 custom)
Engine: LG4 / turbo LQ4
Transmission: 700R4 / 4L80E
Axle/Gears: Stock / 3:50 Moser 9"
Re: Under dash relay?
Pretty sure the relay in the last picture is for the rear hatch defrost
Thread Starter
Junior Member
Joined: Feb 2022
Posts: 38
Likes: 1
From: Ontario, Canada
Car: 1988 TransAm GTA, 1983 firebird SE
Engine: 350,305
Transmission: 700r4x2
Axle/Gears: 327
Joined: Jul 2006
Posts: 1,279
Likes: 512
From: Rochester NY
Car: 1984 TA (1 stock / 1 custom)
Engine: LG4 / turbo LQ4
Transmission: 700R4 / 4L80E
Axle/Gears: Stock / 3:50 Moser 9"
Re: Under dash relay?
Does your car have a power antenna?
Thread Starter
Junior Member
Joined: Feb 2022
Posts: 38
Likes: 1
From: Ontario, Canada
Car: 1988 TransAm GTA, 1983 firebird SE
Engine: 350,305
Transmission: 700r4x2
Axle/Gears: 327
Joined: Jul 2006
Posts: 1,279
Likes: 512
From: Rochester NY
Car: 1984 TA (1 stock / 1 custom)
Engine: LG4 / turbo LQ4
Transmission: 700R4 / 4L80E
Axle/Gears: Stock / 3:50 Moser 9"
Re: Under dash relay?
I think those two plugs to the left of the defrost relay are for the power antenna
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