LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Cadillac >> 2007 >> Escalade EXT >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Keyless Entry System And Remote Functions >> Diagnostic Information and Procedures >> Keyless Entry System Inoperative >> Circuit/System Testing
April 5, 2026: LEMON Manuals is launched! Read the announcement.

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 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 parameter responds to every function on the transmitter.
    • If it does not respond to every function, replace the RCDLR module.
  5. Replace the transmitter.
scientia non olet · About LEMON Manuals