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Home >> Cadillac >> 2007 >> XLR Base >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel System Displays And Gauges >> Description and Operation >> Indicator/Warning Message Description and Operation >> Check Engine

Check Engine

The instrument panel cluster (IPC) illuminates the malfunction indicator lamp control module (MIL) telltale when the engine control module (ECM) detects a malfunction in the engine emission system. The MIL indicates that an emission related malfunction has occurred and vehicle service is required. The MIL telltale is hardwired to the ECM and the ECM will ground the MIL control circuit when it wants the indicator illuminated in the IPC.

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