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Bulb Malfunction Indicator Pin Numbers (Bulb Out Relay) 900 1994

posted by  jd620 on  Mon Mar 12 15:56 CST 2018
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last visit: Fri Oct 17 07:42 CST 2014
[RELATED]

I have been lucky re-soldering several Bulb Malfunction Indicators (Bulb Out Relay) but my luck has run out on one. The cruise control and the brake lights don't work. I had a spare and everything is fine now and I'd like to re-solder the bad relay (again, first time re-soldering didn't fix it) I have the wiring diagram but the pin numbers on the black disc around the pins don't correlate. John Sargent wrote in the FAQS under "Electrical: Circuits, Wiring, Relays, Switches" and under that "Lamp Failure: Bulb Out Relay." "[John Sargent] The solder joint on the board leading to contact 9 (brake light circuit) can fail; resolder this to repair it." The pin 9 referred to corresponds with my wiring diagram brake circuit but I don't know where pin 9 is?

Could it be so simple that the pins are numbered 1 through 13 clockwise or counter-clockwise?

Thanks
--
Mine:4-940s running, 1-740, 2-940 parts, dtrs:3-940s running








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    Bulb Malfunction Indicator Pin Numbers (Bulb Out Relay) 900 1994

    uid 55's pic
    posted by  john sargent on  Mon Mar 12 18:25 CST 2018
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    last visit: Wed Oct 22 09:07 CST 2014
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    Pin 1 is opposite of the locating lug on the base or the relay. Pin 1 is labeled K on the relay. The pins are numbered counter clockwise.
    --
    john








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      Bulb Malfunction Indicator Pin Numbers (Bulb Out Relay) 900 1994

      posted by  jd620 on  Tue Mar 13 12:18 CST 2018
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      last visit: Fri Oct 17 07:42 CST 2014
      [RELATED]

      Thanks John Sargent. An ohmmeter shows the pin 9 connection to a chip and the adjacent chip connection to be a short or near short unlike a good relay. I'm thinking the chip is bad? I don't have any solder bridges. I have two spares so should survive with good relays for as long as the 940s do.
      --
      Mine:4-940s running, 1-740, 2-940 parts, dtrs:3-940s running







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