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Brake lights out 200 1989

I was rear ended a while ago and have recently replaced both tail lights on my vehicle, along with the bumper. All parts were used, pulled off of another 240 wagon close in year to mine. All rear lights were working before the switch, but now the brake lights and backing up lights are out. The running tail light and blinkers are still working.

The bulbs are all good and we've checked the switch located up under the gas pedal. Power goes in, power goes out. I believe we've ruled that out.

Any suggestions would be appreciated.








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    Tail light compatability; verify years 200 1989

    What year replacement tail lights did you get? The older pre '86-87 won't work on your car with out modifying the circuitry.

    I had this problem on my '88 244GL(rip) when I replaced the original ones with PnP ones. I swapped the original pc board to the "new" tail light assembly and it worked fine.








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    Brake lights out 200 1989

    Start at the bulbs and work backwards. Test for power at the metal contact strips on the circuit boards for the offending lights. Also, test for ground at the same points - you can use the working taillight circuit as a known good power source. If no power there, test at the plug ends.

    Also, look for a break in the circuit board ground strip - I believe the stop lights and the back up lights are the last two points in the common ground connection.










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    Brake lights out 200 1989

    Under the dashboard, drivers side, just left of the steering wheel. pull down the Bulb failure sensor and see if you have power to the yellow and yellow/gray wire when you step on the brake.
    Back up lights are on a separate circuit, so I think you may have two separate issues here.

    Automatic trani or manual?

    --
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      Brake lights out 200 1989

      Hi there. We were able to get to some tinkering this weekend, so:

      The car is an automatic.

      There appears to be power coming from the breaker to the switch. On the tail end of the car, there's power through all the connectors but the brake lights; so the running lights, blinkers and reverse are now all working. The ground wires are good.

      So, is this bulb failure sensor the only other thing between the fuse and the brake light? If so, would replacing it maybe fix the problem? How difficult would it be to replace?

      Thanks for your input!








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        Brake lights out 200 1989

        It is +12V from the battery through a fuse to the Brake light switch from brakelight switch to Bulb Failure sensor from Sensor to tail lights . to answer your question: there is nothing between the brake switch and the Tail lights other then the sensor.

        Rotate and remove the three Plastic Holds that hold up teh front of the knee bolster and look up under the dash for the Red Can (Bulb failure sensor), unclip it and drop it down a bit.
        Look for a Blue wire with a red stripe (goes to #54S on the bulb failure sensor). That wire is coming from the Brake switch. When you step on the Brake, you should have 12 Volts at that wire. You can wiggle the black connector so it partially disconnects from the sensor to do this testing.
        If you 12 volts,then here's the next step: There are two yellow wires (#54R/54L) right next to that Blue wire on the Bulb Failure connector. These yellow wires go to each side of the car for the Brake lights. When you step on the Brake, you should get 12V on these wires. If you get 12V on the blue wire but not on the yellow wires... the Sensor is bad. It can be resoldered but it's a bit tricky.
        sorry if it sounds confusing









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