Volvo RWD 140-160 Forum

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Brake Failure Switch wire goes... 140-160

posted by  someone claiming to be SprtWgn on  Tue Feb 16 11:18 CST 2016 [RELATED]

Recently got around to replacing my master cylinder and leaky booster. Hooray!
In the process I realized that the brake safety switch (at the brake line distribution block) has not had a wire connected for as long as I've owned the car. Can't find any stray wires anywhere and am wondering how/where exactly this switch connects to the circuit/harness. I have the "brake" light on at the dash when my parking brake is engaged so the rest of the circuit seems to be functioning properly.

ps- I've forgotten my password here but neither the "forgot password" link or a "help" form to the mods have generated any email response (yes, obsessively checked and re-checked all spam and junk folders). Any suggestions welcome.








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    Brake Failure Switch wire goes... 140-160

    posted by  142 guy on  Tue Feb 16 22:32 CST 2016
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    last visit: Wed Oct 22 20:18 CST 2014
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      Brake Failure Switch wire goes... 140-160

      posted by  someone claiming to be SprtWgn on  Wed Feb 17 21:56 CST 2016 [RELATED]

      Thanks for the visual. Is was indeed tucked away behind the relay bar.
      1- sorted. Dozens to go.








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    Brake Failure Switch wire goes... 140-160

    posted by  142 guy on  Tue Feb 16 18:38 CST 2016
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    last visit: Wed Oct 22 20:18 CST 2014
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    Volvo from Heck is correct. In the attached photo, you can just see the wire running from the harness along the edge of the hood opening down to the junction block (between the back-up and window heater relays).

    On my 1971 142, the brake failure light switch is connected in parallel with the Parking brake switch.









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    Brake Failure Switch wire goes... 140-160

    posted by  Volvo From Heck on  Tue Feb 16 13:16 CST 2016
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    last visit: Mon Oct 13 20:56 CST 2014
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    There should be a black wire exiting the harness directly in line with where the switch is located---maybe it got tucked back in--or snipped? -- Dave







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