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Home >> GMC >> 2018 >> Terrain SL >> Repair and Diagnosis (Single Page) >> Electrical >> Charging Systems >> 12 V Starting And Charging System >> Diagnostic Information And Procedures >> DTC P15A3: Stop/Start Select Switch Circuit Signal Message Counter Incorrect >> Circuit/System Description
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Circuit/System Description

The Engine Control Module (ECM) receives the Stop/Start switch speed signal via CAN from the Body Control Module (BCM).