Thread: 1972 SWB Build
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Old 12-27-2018, 04:08 PM   #177
beaterku
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Location: Lenexa, KS
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Re: 1972 SWB Build

Quote:
Originally Posted by MDPotter View Post
Are you installing the park safety switch on the transmission? I'm in the middle of reworking my LQ9 harness and trying to figure out whether to keep the switch or not. I have a large grey 12-pin connector in my harness that connects to the transmission-mounted switch. I'm guessing you have a single wire from your PSI harness that connects to the brake switch.
The PSI harness didn't have provisions for the range or neutral switch on the trans. I am using the stock column mounted safety switch. My truck is still wired stock for the ignition switch. So the purple wire goes from the ignition switch, through the neutral safety switch and then to the starter.

I did get a new brake switch that supplies the ecm 12v when the brakes are applied and 12v when the brakes are not applied for the TCC circuit.
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