LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Cadillac >> 2000 >> DeVille Base >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Remote Keyless Entry Systems >> Symptom Tests >> Test A: Remote Keyless Entry System Inoperative
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Test A: Remote Keyless Entry System Inoperative

  1. If diagnostic system check was performed, go to next step. If diagnostic system check was not performed, see DIAGNOSTIC SYSTEM CHECK  under DIAGNOSTIC TESTS.
  2. Check power door lock function using door mounted switches. If power door lock functions properly, go to next step. If power door locks do not function properly, see appropriate POWER DOOR LOCKS article.
  3. Check trunk release function using instrument panel mounted switch. If trunk lid release functions properly, go to next step. If trunk lid release does not function properly, see appropriate POWER TRUNK & FUEL DOOR RELEASE article.
  4. NOTE: Inspect keyless entry transmitter to ensure it is correct model for this vehicle. A wrong model transmitter may pass this test, but will not activate vehicle remote system.
  5. Turn on Keyless Entry Tester (J43241). Place transmitter on keyless entry tester pad. Press each button of transmitter one at a time. If a tone does not sound or the Green light does not illuminate after each button is pressed, go to next step. If a tone sounds and the Green light illuminates after each button is pressed, go to step  7 .
  6. If none of the buttons sound tone or illuminate the Green light, replace transmitter battery, and go to next step. If any button sounds tone and illuminates Green light, replace transmitter. Go to step  10 .
  7. Turn on Keyless Entry Tester (J43241). Place transmitter on keyless entry tester pad. Press each button of transmitter one at a time. If a tone does not sound or the Green light does not illuminate after each button is pressed, replace transmitter, and go to step  10 . If a tone sounds and the Green light illuminates after each button is pressed, go to next step.
  8. Press instant alarm button on transmitter. If instant alarm function operates normally, go to next step. If instant alarm function does not operate normally, go to step  10 .
  9. Resynchronize transmitter. See SYNCHRONIZING TRANSMITTERS  under PROGRAMMING. If locks cycle to lock, then unlock, go to next step. If locks do not cycle to lock, then unlock, go to step  10 .
  10. Operate transmitter within range of vehicle. If all RFA functions do not operate normally, go to next step. If all RFA functions operate normally, go to step  12 .
  11. Program transmitter. See TRANSMITTER PROGRAMMING  under PROGRAMMING. If locks do not cycle to lock, then unlock, go to next step. If locks cycle to lock, then unlock, go to step  12 .
  12. Replace RFA module. See REMOTE FUNCTION ACTUATOR MODULE  under REMOVAL & INSTALLATION. Go to next step.
  13. Operate system to verify repair.