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Home >> Chevrolet >> 2006 >> Uplander Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 253 (Lighting Systems) >> Diagnostic Information and Procedures >> DTC B257A >> DTC Descriptor
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

DTC Descriptor

WARNING: This page is about a different car, the 2007 Chevrolet Monte Carlo and 2007 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.
DTC B257A 00

Headlamp Switch Input Signal Mismatch

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