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Home >> Cadillac >> 2009 >> STS V >> Repair and Diagnosis >> External Pages >> Different car >> Section 773 (Keyless Entry System And Remote Functions) >> Diagnostic Information and Procedures >> DTC B3105 >> Circuit/System Testing
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Circuit/System Testing

WARNING: This page is about a different car, the 2013 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Verify that the transmitter is the correct transmitter for the vehicle.
    • If not correct, replace the transmitter.
  2. Place the transmitter on the test pad of the J 43241  keyless entry tester and press each button of the transmitter one at a time. The tester should sound a tone and illuminate a green light when each button is pressed.
    • If one or more buttons does not sound the tone and illuminate the green light, replace the transmitter battery and retest with the J 43241  keyless entry tester. If the condition continues after battery replacement, replace the transmitter.
  3. Attempt to program the transmitter, refer to Remote Control Door Lock Transmitter Learn (without ATH) , (without ATH) or Remote Control Door Lock and Theft Deterrent Transmitter Programming (with ATH - N America and Asia) , Remote Control Door Lock and Theft Deterrent Transmitter Programming (with ATH - Canada and Europe)  (with ATH). The transmitter should program.
    • If the transmitter does not program, replace the RCDLR.
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