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Home >> Cadillac >> 2017 >> CT6 Base, 3.6L Eng VIN S >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 13 (Plug-In Charging System) >> Diagnostic Information and Procedures >> DTC P0CF9 or P0D01: Control Pilot Charging >> Circuit/System Description
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Circuit/System Description

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The hybrid/EV powertrain control module 2 has two internal switches used to modify the control pilot signal. The first internal switch modifies the control pilot signal to indicate to the drive motor battery charger cable that the vehicle is either ready or not ready to accept energy. The second internal switch modifies the control pilot signal to indicate to some drive motor battery charger cables (currently not used) if indoor ventilation is required.