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Home >> Chevrolet >> 2021 >> Malibu LT >> Repair and Diagnosis >> Engine Mechanical >> Starter >> 12 V Starting And Charging - Diagnostic Information And Procedures (1 Of 2) >> Diagnostic Information and Procedures >> DTC P3052, P3054, or P3056 >> Circuit/System Description

Circuit/System Description

For an overview of the component/system, refer to: Stop/Start System Description and Operation (with KL9)

Circuit Description
B+ - Terminal 8 @ T19 Power Supply Transformer Power Supply Transformer Input Voltage 2
Control - Terminal 9 @ T19 Power Supply Transformer Control Module Voltage Output 2 Circuit - Regulated voltage supplied by the control module.
Ignition Voltage - Terminal 6 @ T19 Power Supply Transformer Control Module Ignition On Circuit
Ground - Terminal 7, 12 @ T19 Power Supply Transformer Device Ground Circuit
Ground - Terminal @ K20 Engine Control Module Device Ground Circuit
Component Description
T19 Power Supply Transformer DC to DC voltage power supply that maintains a steady output voltage.
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