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Theory Of Operation

WARNING: This page is about a different car, the 2014 RAM 1500. However, it is still accessible from the selected car via links, so may be relevant.

When the ignition switch is turned off, the Powertrain Control Module (PCM) continues to drive the ASD relay on for approximately 20-40 seconds. This period of time is the After-Run Mode of operation. During After-Run the PCM performs several internal and external checks. When After-Run is complete, the PCM switches off the ASD relay driver and powers off the engine system.

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