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No brake lights 700 1991

posted by  mortoni on  Wed Jul 23 14:35 CST 2003
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last visit: Fri Jan 30 03:51 CST 2009
[RELATED]

Would appreciate advice in finding the fault
Brake pedal switch checked out OK. Removed the connector and jumped the 2 contacts in the connector - still no lights.
What is the next step?
Look forward to your replies
Morton







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No brake lights 700 1991

posted by  spasske on  Thu Jul 24 03:51 CST 2003
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last visit: Thu Oct 23 10:11 CST 2014
[RELATED]

I had this problem before and it was the bulb failure relay. The relay is part of the circuit to light the bulbs, if there is a bad trace on the relay - no lights. I was able to resolder the relay and it corrected the problem.
--
Paul NW Indiana '89 740 Turbo 103,000








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No brake lights, problem fixed 700 1991

posted by  mortoni on  Thu Jul 24 06:34 CST 2003
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last visit: Fri Jan 30 03:51 CST 2009
[RELATED]

Thanks for the replies. You guys were dead on tracing the problem. It was the bulb sensor relay which I took apart and found enumerable 'dry' solder joints. I touched them up with a fine gauge resin cored solder and a light soldering iron.

Much appreciated

Morton








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No brake lights 700 1991

posted by  rsbrink on  Wed Jul 23 14:47 CST 2003
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last visit: Thu Nov 22 21:23 CST 2012
[RELATED]

If your cruise doesn't work also the problem is the burned out bulb sensor in the relay box.







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