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Post 14 made on Friday November 8, 2019 at 12:16
Loyal Member
September 2004
On November 8, 2019 at 10:49, GotGame said...
Oh. that made my day.
451M has everything neat in one box. Depending one what ford did in that E350. I don't ever recall working on one. Some other vehicles were just neg trigger to the factory relays.

The negatively triggered locks were great- very easy to connect.

Ford used polarity toggling, but with master and slave switches. Two wires for lock, two wires for unlock- as I remember, it required two relays with tab 30 going to the locks and 87a connected to the master switch side. Tab 87 connected to a 12V source.
My mechanic told me, "I couldn't repair your brakes, so I made your horn louder."

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