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Home >> Jeep >> 2004 >> Grand Cherokee Laredo, 4.7 N, RWD >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> Electronic Control Modules >> Powertrain Control Module >> Description >> Description - 5 Volt Supplies

Description - 5 Volt Supplies

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