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Electrical / Re: TH350C orange test connector use?
« Last post by VileZambonie on June 23, 2026, 04:48:01 pm »You're reading it wrong. Key on 12v to the solenoid. The brake switch or low vacuum switch can interrupt the circuit open. The pressure switch in the valve body grounds the solenoid when the appropriate pressure is met and applies the torque converter clutch. If you have a test light bulb installed on the test connector you can hit the go pedal and see it go out, let off see it come on, hit the brakes, see it go out, let off the brakes, on and so forth.

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