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Home >> Buick >> 2013 >> Verano Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 193 (Lighting System) >> Diagnostic Information and Procedures >> DTC B257B >> DTC Descriptors
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

DTC Descriptors

WARNING: This page is about a different car, the 2012 Buick Verano. However, it is still accessible from the selected car via links, so may be relevant.
DTC B257B 03

Lighting Control Switch Signal Low Voltage

DTC B257B 07

Lighting Control Switch Signal High Voltage

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