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Home >> Buick >> 2011 >> LaCrosse CX, 2.4 C >> Repair and Diagnosis >> Accessories & Equipment >> Anti-Theft Systems >> Keyless Entry System And Remote Functions >> Diagnostic Information and Procedures >> DTC B3105 >> Circuit/System Testing
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Circuit/System Testing

  1. Verify that the transmitter is the correct transmitter for the vehicle. This can be accomplished by comparing the part number printed on the transmitter to the appropriate part number in the parts catalog.
    • If not correct, replace the transmitter.
  2. Attempt to program the transmitter. Refer to Replacing Keys (with BTM) or Replacing Keys (without BTM) . The transmitter should program.
    • If the transmitter does not program, replace the transmitter.
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