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check engine ghost 850 1996

posted by  Elbowout on  Thu Oct 4 13:10 CST 2018
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last visit: Mon Jan 27 20:35 CST 2014
[RELATED]

Hi guys, When my ignition key is turned to the on position, all the usual lights come on, except the check engine light. the car wont start. If i wait about 15 minutes, i hear a solenoid on, type sound, the check engine light comes on and then the car starts and runs fine. What gives???








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    Wont start- Diagnosis info 850 1996

    posted by  B.B. on  Wed Jan 9 10:12 CST 2019
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    last visit: Mon Oct 6 13:15 CST 2014
    [RELATED]

    Here's how to diagnose this problem

    Get a meter and read +12VDC at "17/1" The "Service Socket For Starter Motor"
    when you turn the key, there has to be 12VDC at this single wire connector.

    If you turn the key and that wire is not +12V then you can have trouble with
    the Alarm Relay 2/28 (controlled by the Tranny) or 3/71 Tranny Interlock Switch,
    then the Ignition Switch.

    You can also make a jumper to the + terminal of the battery and touch it
    to the Service socket to start the car. This way a problem with the ignition switch, the interlock switch, the relay, and wiring is bypassed.

    See the screen shot of page 76 (1995 850) for locations for the service port.
    It is simply a wire with a single pole connector on it, located by the OBD block.

    Post back with results

    Bill







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      Wont start- Starter Diagnosis info part 2 850 1996

      posted by  B.B. on  Thu Jan 10 06:20 CST 2019
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      last visit: Mon Oct 6 13:15 CST 2014
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      After more digging around in the Volvo Wiring Diagram.
      There's two possible culprits: 3/71 Tranny selector and 2/28 Alarm Module.
      They both have computer controlled relay points in the starter circuit.



      Where you have a delay, my bet is that the 2/28 Alarm relay module could be causing your problem. It is shown in the pictoral in the main Fuse block ,
      lower level. It is marked "210 211". Get one from a junk yard to try.


      Another view of the 2/28 Alarm Module and the starter interlock circuitry.



      Bill







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    check engine ghost 850 1996

    posted by  KlausC on  Fri Oct 5 11:32 CST 2018
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    last visit: Fri Oct 24 10:15 CST 2014
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    If it has never been replaced, it could be the electrical portion of the ignition switch.

    Do you leave the key in the on position for 15 minutes?? Could it be the idle control motor turning on after 15 minutes?
    Could it be the climate control finally turning on after 15 minutes?


    --
    Keeping it running is better than buying new








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      check engine ghost 850 1996

      posted by  Elbowout on  Mon Oct 15 11:50 CST 2018
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      last visit: Mon Jan 27 20:35 CST 2014
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      K ..the idle control motor, turning on, is the sound i hear. Once on, .the car will start.







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        check engine ghost 850 1996

        posted by  KlausC on  Tue Oct 16 09:04 CST 2018
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        last visit: Fri Oct 24 10:15 CST 2014
        [RELATED]

        Then jiggle the key when you turn it to position II, before you move it to position III to start the engine. My bet is the ignition switch, easy to replace if you have a long T15 to get the plastic surround off the steering wheel.

        --
        Keeping it running is better than buying new








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          check engine ghost 850 1996

          posted by  Elbowout on  Wed Jan 2 14:42 CST 2019
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          last visit: Mon Jan 27 20:35 CST 2014
          [RELATED]

          Thanks for the reply, Today, 1/2/19, I checked for codes, using the latest snap on reader, and an older compatable reader. Both units showed no codes!....I have just about given up!!








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            check engine ghost 850 1996

            posted by  hf63 on  Thu Jan 3 10:34 CST 2019
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            last visit: Wed Oct 22 15:19 CST 2014
            [RELATED]

            At the back of the ignition key, there is an electrical switch that controls power to basically everything. No codes for this item, the plastic around the key is called a shroud you remove this to expose the switch. Just google it not hard to do!







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