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Brake light switch part number 700 1990

posted by  Rludwick on  Thu Aug 21 16:59 CST 2008
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last visit: Sat Aug 31 16:10 CST 2013
[RELATED]

The vacuum part of the switch is fine, but the electric part of it was dead before I opened it up and flipped the contacts and cleaned it up, now it has continuity, but not perfect, it's still a weak connection.

I went through every connector and socket on the brake circuit and cleaned and tightened everything up, but no difference.
Now that I've seen the wiring diagram, I'm pretty sure that that shared wire is giving an excess resistance reading to the bulb sensor.
--
-------Robert, '93 940t, '90 240 wagon, '84 240 diesel (she's sick) , '80 245 diesel, '86 740 GLE turbo diesel, '92 Ford F350 diesel dually






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