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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 242 (Cruise Control System) >> Diagnostic Information and Procedures >> Cruise Control Indicator Malfunction (IPC Indicator Malfunction) >> Circuit/System Description

Circuit/System Description

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The instrument panel cluster (IPC) illuminates the cruise control engaged indicator based on serial data messages received from the engine control module (ECM). The indicator is commanded ON when the cruise control system is controlling vehicle speed, and turned OFF with the system disengaged.

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