Question about 1991 Chrysler LeBaron

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The alternator on my girlfriends 91 Chrysler Lebaron isnt producing enough power to recharge or keep my battery charged. its giving me the codes DTC41, DTC 35, AND DTC 31, now i know that one of those codes is for a bad relay for the fan and that has been replaced. the other two are something along the lines that there is a short or bad terminal in the wiring causing a bad connection. i replaced the alternator and pulley in the last week because they needed to be replaced. this problem started shortly after monsoon season started here in arizona. im going to change the positive terminal on the battery as it looks like it needs to be replaced and i dont have the money to take it to an electrician. what could this be.

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There are 2 types of alternators for this vehicle .code 41 is a field circuit code for the alternator The SBEC controlls the charging rate of the alternator . It could be wiring connections or the SBEC ( computer) to be the problem .You may have to back probe some terminals to find the problem ,but first check all of the engine grounds including the negative battery cables. The fault code for the field circuit is most likely generated because of an open circuit . The SBEC (computer) supplies the ground to energize the field circuit ..

Hope this helps

Posted on Aug 07, 2010

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