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SRS Light Stays On 900

We have a 1991 Volvo 940SE. A few months ago the SRS light came on, and has stayed on. Does anyone have the computer codes that would apply to this problem? Or other suggestions/ideas to try? Thanks for any help in taking care of this great car!








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    SRS Light Stays On 900

    Dear Steven E,

    Hope you're well. Yes. I have a complete list of OBD (On-Board Diagnostic) codes. Please report which codes you see, when you interrogate the OBD System.

    Sometimes a transient electrical surge can cause the warning light to come "on". The system can be re-set by disconnecting the negative battery cable clamp from the negative battery terminal. This cuts all power to the car. Wait 30 minutes and reconnect. Drive the car. If the SRS light again comes "on", you can try two further disconnects. If - after that - the SRS light stays "on" after start-up, something is amiss.

    Be sure you have the radio security code, before cutting power to the car. If you don't have the code, call a Volvo dealer and provide your car's Vehicle Identification Number. If the radio is the factory-installed item, the dealer will be able to provide the radio security coade.

    If your car is parked outside a mouse could have chewed through part of the wiring harness. The SRS sensor is inside the car, beneath the carpet, under the driver's seat. Before trying to remove the driver's seat, disconnect the negative battery cable clamp from the negative battery terminal, and put the clamp in a plastic bag (to isolate it). Wait 15 minutes. The driver's seat may then be removed. Dropping the seat on the SRS sensor could trigger the airbag. At close quarters, that can be lethally dangerous. Even if not lethal, it will be costly: the airbag, sensor and wiring harness will have to be replaced.

    Hope this helps.

    Yours faithfully,

    Spook








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    SRS Light Stays On 900

    https://www.google.com/search?q=srs+light+volvo+940&oq=srs+light+volvo+940&aqs=chrome..69i57j0j69i60.11908j0j4&sourceid=chrome-mobile&ie=UTF-8

    Not 100% sure, but I would think the SRS light being on would indicate an issue with the SRS only.. so no need for a code.

    Usually a code is needed when the check engine light comes on.

    --
    "Do you think that's air you're breathing now'? (The Matrix 1999) '94 940T (463K+), 92 245 (300K+), 90 740 (148k)








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      https://www.brickboard.com/FAQ/700-900/ElectricalSRS.htm 900 1991

      https://www.brickboard.com/FAQ/700-900/ElectricalSRS.htm
      --
      Give your brickboard.com a big thumbs up! Way up! - Roger Ebert.








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        https://www.brickboard.com/FAQ/700-900/ElectricalSRS.htm 900 1991

        Thanks, kgv.

        I looked in faq, but could not find it. Brain foggy this morning! 😁
        --
        "Do you think that's air you're breathing now'? (The Matrix 1999) '94 940T (463K+), 92 245 (300K+), 90 740 (148k)








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          Try this for SRS Test 900 1991

          Andrew,

          Please forgive me. I forgot to reply. Or I did not check and find yopur reply until today.

          I had the image files before they were deleted from Bills site. Can't find anywhere. So they live in perpetuity again, now on the might brickboard. Maybe best to add to the 700-900 FAQ.

          You know, Bill's site:
          http://www.nuceng.ca/bill/volvo/volvohome.htm

          Cause sometimes, all the doc, including the damned FAQ, can really suck.



          240 SRS parts location:


          All I have is GIMP or PowerPoint 2013. Well, I used GIMP. And I really HATE GIMP.

          GIMP SUCKS. Left my Paint Shop Pro 5.5 install CDs at my mother house in 2003-2004. We don't speak anymore. Hard to find Paint Shop Pro 5.5 anywheres.








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            For SRS Test on 240 series. The Contact under the SRS center console ... 200

            For 200 with SRS to check SRS ...

            I mean, even the Volvo DOC does not have this info. Though I'd not check all the green manual PDFs I have .....

            1. Remove the cover using a slim standard bladed screw driver or thin blade pen knife at the wide gap at the bottom of the the seam.



            2. Cover is free from SRS check contact under the cover. See shiny metal bit. Snap the cover back on back on when done. Where you touch a tire here and to a ground spot on the car, like the shift lever shaft, per the instructions in this BrickPIX image here (copy and paste):
            https://dzywoxlnnkpjm.cloudfront.net/12790.png



            3. See shiny metal bit Where you touch a tire here and to a ground spot on the car, like the shift lever shaft, per the instructions in this BrickPIX image here (copy and paste):
            https://dzywoxlnnkpjm.cloudfront.net/12790.png



            And now this info live again, now served up by your mighty brickboard.

            Please note the warning at the bottom of the graphic with the instructions. If you test the SRS, and the light is on, more than likely you need to replace the steering wheel shaft clock spring as continuity si lost between the SRS crash sensor box and the air bag.

            Yet AGAIN, MIND THE WARNING at the end of the graphic. Actually, it's a DANGER.









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