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Remote Keyless Entry Diagnostic System Check

  1. Turn ignition off. Install scan tool. Turn ignition on. Attempt to establish communications with Remote Function Actuation (RFA) system. If scan tool communicates with RFA system, go to next step. If scan tool does not communicate with RFA system, go to step  4 .
  2. Using scan tool, select RFA DTC function. Check for communication related RFA system DTCs (DTCs that begin with "U"). If "U" DTCs are stored, see DTC IDENTIFICATION  table under DIAGNOSTIC TROUBLE CODES under SELF-DIAGNOSTIC TESTING. Perform appropriate test. If any other DTCs are stored, go to next step.
  3. Using scan tool, select RFA DTC function. Check for RFA system DTCs. If DTCs are stored, see DTC IDENTIFICATION  table under DIAGNOSTIC TROUBLE CODES under SELF-DIAGNOSTIC TESTING. Perform appropriate test. If DTCs are not stored, go to step  5 .
  4. Attempt to establish communications with other systems connected to same serial data line (PCM, BCM, ABS, IPC, etc.). If scan tool communicates with other systems, go to step  6 . If scan tool does not communicate with other systems, repair serial data line as necessary. See appropriate wiring diagram in DATA LINK CONNECTORS article in WIRING DIAGRAMS.
  5. Operate transmitter through all button and switch positions. If transmitter is operating properly, system is okay. Test is complete. If transmitter is not operating properly, go to REMOTE KEYLESS ENTRY SYSTEM CHECK  .
  6. Turn ignition off. Disconnect remote control door lock receiver connector. Receiver is located above left rear wheelwell. Turn ignition on. Using a test light connected to ground, check for power on remote control door lock receiver connector terminal "A" (Orange wire). If test light illuminates, go to next step. If test light does not illuminate, go to step  10 .
  7. Using test light connected to battery voltage, probe remote control door lock receiver harness connector terminal "G" (Black/White wire). If test light illuminates, go to next step. If test light does not illuminate, go to step  12 .
  8. Using a DVOM, check for continuity between remote control door lock receiver connector terminal "D" (Pink wire) and Data Link Connector (DLC) terminal No. 2 (Purple wire). If continuity exists, go to next step. If continuity does not exist, go to step  11 .
  9. Replace remote control door lock receiver. See REMOTE CONTROL DOOR LOCK RECEIVER  under REMOVAL & INSTALLATION. Program all RFA transmitters. See TRANSMITTER PROGRAMMING & SYNCHRONIZATION  under SYSTEM PROGRAMMING. Program all Tire Pressure Monitor (TPM) sensors. See TIRE PRESSURE MONITOR (TPM) SENSOR PROGRAMMING  under SYSTEM PROGRAMMING. Go to step  13 .
  10. Repair open remote control door lock receiver connector harness Orange wire (circuit No. 540). Inspect mini fuse No. 27 (located in power distribution center). If fuse is open, locate and repair short to ground in circuit No. 540 (Orange wire). After repair, go to step  13 .
  11. Repair open remote control door lock receiver connector circuit No. 1045 (Pink wire). After repair, go to step  13 .
  12. Repair open remote control door lock receiver connector circuit No. 851 (Black/White wire). After repair, go to next step.
  13. Turn ignition off. Install or connect components which were removed or disconnected. Clear DTCs. See CLEARING CODES  under SELF-DIAGNOSTIC TESTING. If DTCs are cleared, system is okay.
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