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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1202 (Instrument Panel, Gages, And Console) >> Diagnostic Information and Procedures >> DTC B1543: Oil Temperature Low >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2003 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.

The instrument panel cluster (IPC) detects high resistance with low engine oil temperature, and low resistance with high engine oil temperature. The instrument panel cluster monitors the oil temperature sensor signal circuit to determine engine oil temperature. The IPC measures the reference voltage change and displays the calculated value on the gage.

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