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Home >> Jeep >> 2017 >> Wrangler Sahara, Automatic Trans >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> Electronic Control Modules (Service Information) >> Module, Powertrain Control, (Pcm) 2.8L Diesel >> Operation >> Pcm Operating Modes >> After-Run Mode
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After-Run Mode

The ECM transfers RAM information to ROM and performs an Input/Output state check.