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Home >> Chevrolet >> 2018 >> Spark LT, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 35 (Engine Controls And Fuel - 1.4L (LV7) - DTC P0351 To DTC P2544 And Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> Malfunction Indicator Lamp (MIL) Diagnosis (Lamp Controlled by Serial Data) >> Circuit/System Description

Circuit/System Description

WARNING: This page is about a different car, the 2017 Chevrolet Spark. However, it is still accessible from the selected car via links, so may be relevant.

Ignition 1 voltage is supplied directly to the MIL. The ECM turns the MIL ON by sending a request to the instrument panel cluster via the CAN communication circuit. The MIL should be ON, with the ignition ON and the engine OFF. When the engine is started, the MIL should turn OFF.

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