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Home >> Cadillac >> 2017 >> CTS Base, AWD >> Repair and Diagnosis (Single Page) >> Electrical >> Body Electrical >> Battery, Charging System And Starting System >> Diagnostic Information and Procedures >> DTC P1077, P1078, P107A, P107B, P107D, or P107E: Stop-Start Capacitor Control Module, Stop-Start Control Module >> Circuit/System Description
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Circuit/System Description

The stop/start capacitor is switched in series to the standard battery by the stop/start capacitor control module during engine restarts to boost voltage. The stop/start capacitor control module monitors the state of the stop/start capacitor and communicates to the ECM.

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