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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 switch. If power door lock functions properly, go to next step. If power door lock does 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, repair wiring as necessary. See POWER REAR COMPARTMENT & FUEL DOOR RELEASE SYSTEMS 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.
  4. 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  9 .
  5. If none of the buttons sound tone or illuminate the Green light, go to next step. If any button sounds tone and illuminates Green light, replace transmitter. Go to step  8 .
  6. Replace transmitter battery. Resynchronize transmitter. See TRANSMITTER RESYNCHRONIZATION  under PROGRAMMING. Go to next step.
  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, go to next step. If a tone sounds and the Green light illuminates after each button is pressed, go to step  9 .
  8. Replace RKE transmitter, and go to step  12 .
  9. 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  12 .
  10. Resynchronize transmitter. See TRANSMITTER RESYNCHRONIZATION  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  12 .
  11. 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  20 .
  12. 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  20 .
  13. Turn ignition off. Disconnect RCDLR. Connect a test light between RCDLR connector terminal No. 1 (Orange wire) and ground. See Figure . If test light is on, go to next step. If test light is off, repair open, high resistance or short to ground in Orange wire between fuse block and RCDLR. See WIRING DIAGRAMS  . Go to step  20 .
  14. Connect a test light between RCDLR connector terminal No. 4 (Black/White wire) and battery positive. See Figure . If test light is on, go to next step. If test light is off, repair open or high resistance in Black wire between RCDLR and ground (G203). See WIRING DIAGRAMS  . Go to step  20 .
  15. Disconnect test light. Turn ignition on, engine off. Using a DVOM, measure voltage between RCDLR connector terminal No. 2 (Light Green wire) and ground. See Figure . See WIRING DIAGRAMS  . If battery voltage is present, go to next step. If battery voltage is not present, go to step  17 .
  16. Check Light Green wire between RCDLR and BCM for short to power. See WIRING DIAGRAMS  . If problem was found, repair as necessary, and go to step  20 . If problem was not found, go to step  18 .
  17. Check Light Green wire between RCDLR and BCM for open, high resistance or short to ground. See WIRING DIAGRAMS  . If problem was found, repair as necessary, and go to step  20 . If problem was not found, go to step  19 .
  18. Check RCDLR connector for poor connections. If connector is okay, replace RCDLR. See REMOTE CONTROL DOOR LOCK RECEIVER (RCDLR)  under REMOVAL & INSTALLATION. Reprogram transmitters. See TRANSMITTER PROGRAMMING  under PROGRAMMING. Go to step  20 .
  19. Check BCM connectors for poor connections. If connectors are okay, replace BCM. See appropriate BODY CONTROL MODULES article. Go to next step.
  20. Operate system to verify repair.
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