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B1A2D-KEY 4 COMMUNICATION ERROR For a complete wiring diagram Refer to Section 8W. • When Monitored: • Set Condition: Possible Causes MULTIPLE KEY OPERATION IGNITION KEY SKREEM INTERMITTENT WIRING HARNESS PROBLEM Diagnostic Test 1. DETERMINING IF DTC IS CURRENT With the scan tool, read and record the SKREEM DTCs. With the scan tool, erase the SKREEM DTCs NOTE: Perform the following test several times to ensure the DTC is current. Wait 10 seconds. Turn the ignition on. With the scan tool, read the SKREEM DTCs. Does the scan tool display the DTC that was previously erased? Yes >> Go To 2 No >> Go To 6 2. CHECKING FOR MULTIPLE KEYS Are there multiple vehicle ignition keys available? Yes >> Go To 3 No >> Go To 4 3. MULTIPLE KEY OPERATION NOTE: Perform the following steps using one of the vehicle ignition keys. When finished, repeat the pro- Turn the ignition off. Wait 10 seconds. Turn the ignition on With the scan tool, read the SKREEM DTCs. Is the DTC present for all ignition keys? Yes >> Replace and program the Sentry Key Remote Entry Module in accordance with the Service Information. Perform SKREEM VERIFICATION TEST. No >> Replace the ignition key(s) that cause the SKIM DTC. Perform SKREEM VERIFICATION TEST. PM VEHICLE THEFT SECURITY - ELECTRICAL DIAGNOSTICS 8Q - 45 |