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Test Description

WARNING: This page is about a different car, the 2002 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to the step numbers on the diagnostic table.

  1. 2.  Clear all DTCs and radio theft information. Cycle the ignition in order for the radio to learn the VIN.
  2. 3.  Clear all DTCs after the repair procedure is complete.
Fig 1: Identifying DTC B1780 Diagnostic Table
G01779772Courtesy of GENERAL MOTORS CORP.
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