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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1737 (Antilock Brake System) >> Diagnostic Information and Procedures >> ABS Active Indicator Always On >> Circuit Description

Circuit Description

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

The instrument panel cluster (IPC) turns the ABS Indicator on during the IPC bulb check for approximately 3 seconds when the ignition switch is turned to the ON position. If the electronic brake control module (EBCM) sets a diagnostic trouble code (DTC) the EBCM sends a class 2 message to the body control module (BCM) and the BCM sends a class 2 message to the IPC to command the antilock brake system (ABS) indicator ON.

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