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Home >> Chevrolet >> 2007 >> Chevy Express G3500, Van Passenger Extended >> Repair and Diagnosis >> External Pages >> Different car >> Section 1317 (Cellular System, Entertainment System, And Navigation System) >> Diagnostic Information and Procedures >> DTC B1020 >> DTC Descriptor
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DTC Descriptor

WARNING: This page is about a different car, the 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
DTC B1020 00

Auxiliary Electronic Control Unit (ECU) 1 Performance

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