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Home >> Buick >> 2007 >> Allure CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 13 (Instrument Panel System Displays & Gages) >> Diagnostic Information and Procedures >> Engine Coolant Temperature Indicator Malfunction >> Circuit/System Description

Circuit/System Description

WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.

The instrument panel cluster (IPC) illuminates the engine coolant temperature indicator when the powertrain control module (PCM) determines that the coolant temperature is more than 128°C (262°F). The IPC receives a discrete input from the PCM requesting illumination.

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