Vehicle came in customer states 4WD LOW inoperative. Scan 4WD module. No trouble codes found. Perform KOEO system test on 4WD module. No codes found. Vehicle won't shift into 4WD LOW. I can get it to operate 4WD AUTO and 4WD HIGH ok. But when I push the 4WD LO...

FIX posted 1/15/2010

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