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Circuit/System Testing

  1. Verify that the transmitter is the correct transmitter for the vehicle.
    • If not the correct transmitter, replace the transmitter.
  2. Verify the scan tool FOB Programmed parameter is Yes.
    • If not Yes, program the transmitter.
  3. Place the transmitter on the test pad of the J 43241  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 none of the buttons sounds the tone and illuminates the green light, replace the transmitter battery.
    • If one or more of the buttons sounds the tone and illuminates the green light, replace the transmitter.
  4. Verify the scan tool FOB Function responds to every function on the transmitter.
    • If it does not respond to every function, test the keyless entry antenna for an open/high resistance.
  5. Replace the RCDLR module.
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