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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 176 (Entertainment Systems) >> Diagnostic Information and Procedures >> DTC B1271: Theft Locked >> Test Description

Test Description

WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. 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:  After clearing the DTCs and theft information, the radio relearns the VIN upon cycling the ignition switch.
  2. 3:  After completing the repair procedure, clear all DTCs.
DTC B1271: Theft Locked

Step Action Yes No
1 Did you perform the Diagnostic System Check - Vehicle? Go to Step 2  Go to Diagnostic System Check - Vehicle in Vehicle DTC Information
  1. Install a scan tool.
  2. Use the scan tool to clear the DTCs.
  3. Perform the radio setup procedure. Refer to Radio Setup .
Does the DTC Reset?
Go to Step 3  System OK
Replace the radio. Refer to Control Module References in Computer/Integrating Systems for replacement, setup and programming.
Did you complete the replacement?
System OK -