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Alarm Malfunction? 900 1996

posted by  BR on  Tue Apr 18 14:18 CST 2006
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last visit: Mon Apr 9 19:22 CST 2012
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Recently my turn signal indicator lights on the instrument panel have begun going on and off erratically--sometimes the left, then the right, and sometimes both together as if the hazard lights were on. Today, my horn sounded for about 10 seconds. Also, the blinking alarm light on the dash has stopped blinking. Today I had to get my battery recharged too. What is the problem and how can I fix it?
--
BR








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    Alarm Malfunction? 900 1996

    posted by  t-bone on  Wed Apr 26 15:41 CST 2006
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    last visit: Tue Sep 21 04:24 CST 2010
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    BR,

    Sorry I couldn't cut and paste the info but try this site and click on 960 service manual. Very helpful stuff. http://caunter.ca/volvo.html

    A sticking relay can cause the lights to remain on and that could run the battery down. Also a bad battery/low voltage can make the alarm act stangely. So one may be the cause the other problems ... a bad battery can make the alarm malfunction or a bad alarm relay may cause the battery to discharge.
    My son in law's 96 960 just had some battery problems that made the alarm act up ... replacing the battery has seemed to resolve the problem. He had to reset the alarm by locking all the doors with the battery disconnected ... pushing down the passenger door locks manaully ... and locking the driver's door with the key. Then he reattached the battery cable and opened the driver's door with the key. The alarm would not shut down otherwise. His remotes don't work so I can't tell you if they could deactivate the alarm on his car. We are still waiting to see if he has any more "dead " battery issues. If so the alarm relay may be at fault, but so far it seems the battery was the culprit. BTW ... the caunter provided manual shows the alarm relay in the 96 960 behind the ash tray with the door lock, cruise control relays in a relay rack located in the center console. We are new to 960s (always driven 240/740/940 Bricks in SLC) and my daughter and son in law live in AZ so we've be trying to diagnose this by phone.
    Hope this helps.













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    Alarm Malfunction? 900 1996

    posted by  t-bone on  Wed Apr 26 05:03 CST 2006
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    last visit: Tue Sep 21 04:24 CST 2010
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    BR,

    You may have an alarm relay problem. Check out page 24 of this document for the location of the relay in the event you need to replace it.

    http://cauter.ca/volov960/xw14827.pdf

    Good Luck.








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      Alarm Malfunction? 900 1996

      posted by  BR on  Wed Apr 26 08:33 CST 2006
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      last visit: Mon Apr 9 19:22 CST 2012
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      Thanks for the advice, but I am unable to open this document. Perhaps you could cut and paste the relevant page into a new message? Also, could a bad alarm relay cause my battery to drain?
      --
      BR








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    Alarm Malfunction? 900 1996

    uid 19's pic
    posted by  jbowers on  Wed Apr 19 07:04 CST 2006
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    last visit: Sun Jan 22 13:49 CST 2012
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    Sounds like something is going wrong. My first try would be to disconnect the battery for a minute or so to see if every thing resets and then recovers normally. (Make sure you have the radio code first!)
    --
    '96 965, 16' wheels, Michelin Pilot Sports, rear 18mm bar + Koni, 201 HP cams, 134K. Put 200K on '85 745 TD.








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      Alarm Malfunction? 900 1996

      posted by  BR on  Wed Apr 19 15:41 CST 2006
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      last visit: Mon Apr 9 19:22 CST 2012
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      Thanks for your suggestion Jim. The battery had been removed yesterday and recharged. It didn't seem to reset anything. I did discover the hood was not properly latched this morning. I leaned on it with enough weight to casue it to latch fully. That seems to have fixed the erratic turn signal blinking and the horn sounding, but I'm not positive since it has only been happening intermittently. Nonetheless, the alarm does not appear to be working correctly because the red light on the dash does not blink. I just tried reprogramming the remote according to your posted instructions, but after turning the ignition on and off repeatedly the alaram LED never blinked. Do you have any suggestions for fixing this problem? Is there a fuse that might need replacing?

      On another issue, I have had to replace the air injection valve twice in the past year. Is that normal? It's not cheap.

      Thanks for your taking the time to help. I am grateful for your commitment to the brickboard.
      --
      BR








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        Alarm Malfunction? 900 1996

        uid 19's pic
        posted by  jbowers on  Tue Apr 25 07:33 CST 2006
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        last visit: Sun Jan 22 13:49 CST 2012
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        Did you replace the valve because you diagnosed it bad or did someone else. My original valve lasted almost 10 years.

        There are a lot of vacuum hose connections in the system. Check them.
        --
        '96 965, 16' wheels, Michelin Pilot Sports, rear 18mm bar + Koni, 201 HP cams, 134K. Put 200K on '85 745 TD.








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          Alarm Malfunction? 900 1996

          posted by  BR on  Tue Apr 25 15:55 CST 2006
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          last visit: Mon Apr 9 19:22 CST 2012
          [RELATED]

          Thanks for the help. I disconnected the battery for a minute. After reconnecting it, the check engine light went off and the erratic behavior of the turn signal indicator lights has so far stopped and the horn has not sounded. I still can't get the alarm to work or to program the remote. Any suggestions?

          As for the air injection valve, I stopped by my mechanic who replaced it before and told him that the check engine light went off after disconnecting the battery. He ran the scanner and apparently it is normal. He thinks the check engine light might reappear, but so far it has not. I am still worried about the battery needing to be charged. Maybe whatever was draining it before is fixed? I will test it in a while to see if it is holding the charge. So far, so good.
          --
          BR







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