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Remote Keyless Entry System Diagnostic System Check

  1. Vehicle can be equipped with 2 types of Remote Keyless Entry (RKE) systems. Open deck lid. If a Remote Control Door Lock Receiver (RCDLR) module is attached to bottom of rear window package shelf, go to next step. If a Remote Control Door Lock Receiver (RCDLR) module is not attached to bottom of rear window package shelf, go to step  8 .
  2. Connect scan tool to Data Link Connector (DLC). See Figure . DLC is located under left side of instrument panel. If scan tool powers up, go to next step. If scan tool does not power up, perform TEST B: SCAN TOOL DOES NOT POWER UP  under SYSTEM TESTS.
  3. Turn ignition switch to ON position. Using scan tool, select REMOTE FUNCTION ACTUATOR (RFA) and attempt to communicate with Body Control Module (BCM) and Remote Control Door Lock Receiver (RCDLR) module. If scan tool communicates with BCM and RCDLR, go to next step. If scan tool does not communicate with BCM and/or RCDLR, perform TEST A: SCAN TOOL DOES NOT COMMUNICATE WITH CLASS 2 DEVICE  under SYSTEM TESTS.
  4. Select DISPLAY DTCS function on scan tool for BCM and RCDLR. If scan tool displays any DTCs, go to next step. If scan tool does not display any DTCs, repair by symptom. See appropriate REMOTE KEYLESS ENTRY SYSTEMS article.
  5. If scan tool displays any DTCs which begin with a "U", perform TEST A: SCAN TOOL DOES NOT COMMUNICATE WITH CLASS 2 DEVICE  under SYSTEM TESTS. If scan tool does not display any DTCs which begin with a "U", go to next step.
  6. If scan tool displays DTC B1000 or B1001, perform appropriate test. See DIAGNOSTIC TROUBLE CODE DEFINITIONS  . If scan tool does not display DTC B1000 or B1001, go to next step.
  7. If scan tool displays any other DTCs, perform appropriate test. See DIAGNOSTIC TROUBLE CODE DEFINITIONS  . If scan tool does not display any other DTCs, repair by symptom. See POWER DOOR LOCKS & REMOTE KEYLESS ENTRY SYSTEMS - MALIBU article.
  8. Connect scan tool to Data Link Connector (DLC). DLC is located under left side of instrument panel. If scan tool powers up, go to next step. If scan tool does not power up, perform TEST B: SCAN TOOL DOES NOT POWER UP  under SYSTEM TESTS.
  9. Turn ignition switch to ON position. Using scan tool, attempt to communicate with Body Control Module (BCM). If scan tool communicates with BCM, go to next step. If scan tool does not communicate with BCM, perform TEST A: SCAN TOOL DOES NOT COMMUNICATE WITH CLASS 2 DEVICE  under SYSTEM TESTS.
  10. Select DISPLAY DTCS function on scan tool for BCM. If scan tool displays any DTCs, go to next step. If scan tool does not display any DTCs, repair by symptom. See appropriate REMOTE KEYLESS ENTRY SYSTEMS article.
  11. If scan tool displays any DTCs which begin with a "U", perform TEST A: SCAN TOOL DOES NOT COMMUNICATE WITH CLASS 2 DEVICE  under SYSTEM TESTS. If scan tool does not display any DTCs which begin with a "U", go to next step.
  12. If scan tool displays DTC B1000 or B1001, perform appropriate test. See DIAGNOSTIC TROUBLE CODE DEFINITIONS  . If scan tool does not display DTC B1000 or B1001, go to next step.
  13. If scan tool displays any other DTCs, perform appropriate test. See DIAGNOSTIC TROUBLE CODE DEFINITIONS  . If scan tool does not display any other DTCs, repair by symptom. See appropriate REMOTE KEYLESS ENTRY SYSTEMS article.
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