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Home >> Chevrolet >> 2020 >> Malibu LS >> Repair and Diagnosis >> External Pages >> Different car >> Section 41 (Wiring Systems And Power Management - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P15B9 or P15BA >> Circuit/System Description

Circuit/System Description

WARNING: This page is about a different car, the 2019 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.

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

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