If you don't recognize this location, that big bolt to the left of the relay is one of the two steering column mounting bolts. Unfortunately, the full amperage did go through the console-mounted switches, so the wiring in the console is often toasty 30 years later. This kept the considerable amperage of the system off the ignition switch and accesory terminal. RelayThis relay, mounted where you'd never find it, was used to turn the power windows on and off on 1970-79 models. The lower circuit breaker marked "power access" is for the rear defroster. This pink wire goes straight to the switch, so there is no relay. In the right view, the circuit breaker is removed, and you can see where the big pink wire snaps into a socket in the fuse box. In the left view, the top circuit breaker powers the windows through a pink wire. The power came through the 30 amp circuit breaker.ġ980-81 FuseboxIn 1980 Firebirds changed to blade fuses. The power windows didn't get their power from this terminal it was just used to turn them on. If you had several of these options, you'll have several jumpers that allow everything to feed on this circuit. Add-on items like cruise control, tachometer, and power windows were all run off this terminal. The regulators are the same, though.ġ970-79 FuseboxThe 70's Trans Am Fusebox had a single terminal for ignition accesories. In 1980, the fusebox was updated (it's illustrated below), and the power supply was changed quite a bit. The 1970-79 systems are practically identical. This page shows some of the wire routing in 1970-81 Trans Ams with power windows. Power Windoze -79 Trans Am Power Windows Page
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