Remote Keyless Entry System Diagnostic System Check
- Turn ignition switch to OFF position. Connect scan tool to Data Link Connector (DLC). DLC is located below left side of instrument panel, to right of steering column. See Figure . Turn ignition switch to RUN position. If scan tool powers up, go to next step. If scan tool does not power up, see TEST G: SCAN TOOL DOES NOT POWER UP under SYSTEM TESTS in appropriate BODY CONTROL MODULES article.
- Turn ignition switch to RUN position. Try to establish scan tool communication with Body control Module (BCM). If communication with BCM is established, go to next step. If communication with BCM is not established go to TEST F: SCAN TOOL DOES NOT COMMUNICATE WITH CLASS 2 DEVICE in appropriate BODY CONTROL MODULES article.
- Select DISPLAY DTC function for BCM. Record all displayed DTCs and status of displayed DTCs. If any DTCs are displayed, go to next step. If no DTCs are displayed, attempt to diagnose system by symptom. See SYMPTOM INDEX table under SYSTEM TESTS.
- If scan tool does not display any DTCs that begin with "U", go to next step. If scan tool displays any DTCs that begin with "U", go to TEST F: SCAN TOOL DOES NOT COMMUNICATE WITH CLASS 2 DEVICE in appropriate BODY CONTROL MODULES article.
- If scan tool does not display DTC B1000, B1013 or B1015, go to next step. If scan tool displays DTC B1000, B1013 or B1015, perform appropriate test. See appropriate BODY CONTROL MODULES article.
- If scan tool displays DTC B1334, B1339, B1354 or B1422, perform appropriate test. See appropriate BODY CONTROL MODULES article. If scan tool does not display DTC B1334, B1339, B1354 or B1422, perform appropriate test. See DIAGNOSTIC TROUBLE CODE DEFINITIONS .