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battery light ?

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    battery light ?

    im new here and the help section is closed but my battery light is on i checked the batt and alt both came back good can anyone help me????

    #2
    Possibly the ICU, [integrated control unit].

    Questions...
    Do the intermittent wipers work?
    Do the warning chimes work?
    Do the front side markers work properly?
    Does the rear window defog work?

    A problem with any of the above is an indication that there is a problem with the ICU, the charging system light, [alt. light] is controled by the output from the alt, [white/blue] lead, the white/blue lead runs from alt. to under dash fuse box, where it parallels into the ICU and continues from fuse box to the cluster and the CSL.

    De-pin the white/blue from the alt. and meter the output from the alt., [engine not running] it should test as a ground, start engine and test again, should test as voltage, [no ground], also if CSL is still on, try a replacement ICU.
    If CSL goes out once white/blue is de-pined, replace the alt.

    Another possibility is the white/blue lead is shorted to ground at some point, keeping the CSL on at all times when ign. switch is on.94

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      #3
      my wipers only work sometimes on intermitten
      i work at autozone i tested my alt and battt both good could it be a ground????

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        #4
        It is possible that it is a grounding issue, however if the only thing that is wrong is the CSL stays on then it is unlikely a grounding issue, unless it is a short to ground of the white/blue lead.

        You need to test the output of the white/blue lead, the alt. may work, [charging] but there still may be a problem with the output of the white/blue. 94

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          #5
          it may sound funny but one time my dad's truck had the same problem. batterly light was on and the problem was a burnt out brake light.. some how it was connected to each other. . not saying its the same problem.. but it doesn't hurt to check it out.

          ed

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            #6
            hmmm thanks um gunna test that wire hes talking about has anyone else had this battery light problem?

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              #7
              ive had it for over a month now

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