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Home >> Cadillac >> 2017 >> CT6 Plug-In >> Repair and Diagnosis (Single Page) >> Electrical >> Body Electrical >> Diagnostic Information And Procedures >> Diagnostic Information and Procedures >> DTC P1A5E or P1A5F: Battery Energy Control Module Ignition On/Start Switch Circuit >> Circuit/System Description
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Circuit/System Description

The body control module (BCM) controls the ignition main relay through the control circuit by applying voltage to the run/crank coil control circuit. The ignition circuit is energized when the vehicle power mode is Vehicle ON or Vehicle in Service Mode.

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