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Flashing arrow and CEL 850 1995

posted by  pgao on  Sun Aug 22 10:36 CST 2010
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last visit: Fri Dec 27 08:18 CST 2013
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All,

After about 10 min of driving today, I got a flshing arrow and CEL. Before I got the lights, there were about a couple of seconds during which the car refused to accelerate (slipping tranny?). The car was lacking power for about 30 sec after the lights were on. Then driving seemed ok (and drived the car with flashing arrow for about 5 min). Restarted the car after it's off for about 10 min, flashing light went away; but CEL stayed on.

Pulled the codes. There're no faulty code in A2. Got 1-1-4 and 1-2-2 from A1, and 2-1-3 and 2-1-4 from A3. (There was no response in A6 and A7. A5 is empty). Cleared the codes from both A1 and A3 and CEL went away. But ABS light stayed on after codes in A3 were cleared. ABS light turned off after I tested driving the car (hope I didn't mess up the ABS system).

Today is a cool, but damp day here. (always suspect weather could have something to do with driveability. Maybe just superstition) Flushed the tranny with Mobile 1 a couple of weeks ago. Fluid level was fine.

The codes seem to point to different things. What's the story?

Thank you for your help.

Best,







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    Flashing arrow and CEL 850 1995

    posted by  KlausC on  Sun Aug 22 10:48 CST 2010
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    last visit: Fri Oct 24 10:15 CST 2014
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    This is why I check and clear codes at every oil change. No need to be confused with old codes. The abs codes are for the rear wheel sensors, if they get real dirty the codes will be set. A wire brush to the axle will clean out the rust and allow the sensor to 'see' the groves again.

    The ABS goes through a self check at about 18mph after engine start, no errors and the light will turn off.

    The flashing arrow is the result of the PNP switch starting to go bad. A fairly easy fix. Rowing the shifter about 20 times will add 6 months to the life of the PNP, but it will eventually need to be replaced.

    The lack of movement when the arrow flashes is caused by the tranny going into limp home mode - 3rd gear only. Only lots of stop and go driving in 3rd will be bad for the torque converter.

    Ignore the code for the #1 solenoid for now. It should clean up when you flush the tranny fluid.

    Klaus
    --
    Two great Volvos, a 1967 220 and a 1998 V70R








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      Flashing arrow and CEL 850 1995

      posted by  pgao on  Sat Aug 28 14:44 CST 2010
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      last visit: Fri Dec 27 08:18 CST 2013
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      Looks like my PNP switch does not want to wait for another 6 months. Flishing arrow light was on again tonight (only one week after I cleared the codes). I am going to clear them up again. Hope it will do the trick to extend ending life of the switch.

      Any suggestions? Should I order a switch now?

      Thanks,








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      Flashing arrow and CEL 850 1995

      posted by  pgao on  Sun Aug 22 12:24 CST 2010
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      last visit: Fri Dec 27 08:18 CST 2013
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      Klaus,

      Thank you for your detailed description. I will try to move shifter 20 times and wait until flashing arrow sets again.

      since I replaced timing and serp. belts and flushed tranny, the car has run very smooth until today. I will post an update if anything new happens in a few days.

      Best,
      Paul








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        Flashing arrow and CEL 850 1995

        posted by  KlausC on  Sun Aug 22 12:48 CST 2010
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        last visit: Fri Oct 24 10:15 CST 2014
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        When you need to replace the rear brake rotors, use a wire brush on the part of the axle that has notches cut into it. Looks like gear teeth. Same goes for the front.

        Have fun,

        Klaus
        --
        Two great Volvos, a 1967 220 and a 1998 V70R







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