Need help diagnosing SES CODES
08-24-2005, 10:42 PM
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Need help diagnosing SES CODES Pulled two codes P1638 and P1637 First is L terminal circuit and secnd is F terminal circuit. However i dont know what either of those mean i my car decides when it wishes to hold charge at 13.7 volts being the best and 11.7 to the battery dying at the worst i replaced the battery, and i borrowed my friends alternator for a day(showed no difference between mine) Can someone please tell me what is going on with my car and what both of those codes exactly mean.
TIA Chris
TIA Chris
08-24-2005, 11:11 PM
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