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Home >> Jeep >> 2009 >> Grand Cherokee 2WD V8-4.7L Flex Fuel >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Engine Control Module >> Description and Operation >> Powertrain Control Module - Description >> 5V Power Supplies
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5V Power Supplies






5 VOLT SUPPLIES
Two different Powertrain Control Module (PCM) five volt supply circuits are used; primary and secondary.
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