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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 892 (Lighting Systems) >> Diagnostic Information & Procedures >> DTC B2577: Short To Ground Or Open In Control Circuit Of Headlamp Relay Coil, Or Low Beam Headlamp Control Circuit Relay >> Conditions for Running the DTC

Conditions for Running the DTC

WARNING: This page is about a different car, the 2003 Pontiac Aztek and 2003 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.

Voltage supplied to the module is in the normal operating voltage range (approximately 9-16 volts).

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