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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 430 (Powertrain Control Module (Pcm) - Electrical Diagnostics - 66RFE Automatic Transmission - 2500 Hd & 3500) >> Diagnosis And Testing >> P0602-Control Module Programming Error/Not Programmed >> Theory Of Operation

Theory Of Operation

WARNING: This page is about a different car, the 2013 RAM 3500 HD and 2013 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.

The controller is programmed during manufacturing with generic software to facilitate testing. However, generic software does not have the proper calibrations to control a transmission in a vehicle. Generic software checked at power-up. If generic software is found the Malfunction Indicator Lamp (MIL) will light immediately and the MIL will stay on if the fault is cleared until the proper software is installed. Note: Transmission will be placed in limp-in mode.

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