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PCM Status Or Serial Link External Failure

  1. Turn ignition switch to OFF position. Connect scan tool to Data Link Connector (DLC). See Figure . Turn ignition switch to ON position. Using scan tool, read and record Sentry Key Immobilizer Module (SKIM) DTCs. Erase DTCs. Turn ignition switch to OFF position and wait 2 minutes. Turn ignition switch to ON position. Recheck for DTCs. If DTCs reset, go to next step. If DTCs do not reset, go to step  4 .
  2. Turn ignition switch to OFF position. Visually inspect connectors at Powertrain Control Module (PCM) and SKIM for damaged terminals or chaffed wires. See COMPONENT LOCATIONS  . Check wiring harness for damage. Check for related Technical Service Bulletins (TSB). If no fault is found, go to next step. If fault is found, repair as necessary. Perform SKIS VERIFICATION TEST  under VERIFICATION TESTS.
    3. NOTE: Prior to test procedure, it will be necessary to obtain SKIM Personal Identification Number (PIN). This number can be obtained from vehicle invoice or calling Chrysler Customer Center.
  3. Turn ignition switch to ON position. Using scan tool, display and erase all PCM and SKIM DTCs. Cycle ignition switch from OFF to ON positions 5 times, leaving ignition switch in ON position for a minimum of 90 seconds per cycle. Using scan tool, read and record SKIM DTCs. If DTCs reset, replace PCM. See POWERTRAIN CONTROL MODULE  under REMOVAL & INSTALLATION. Perform SKIS VERIFICATION TEST  under VERIFICATION TESTS. If DTCs do not reset, test is complete.
  4. Turn ignition switch to OFF position. Visually inspect connectors at PCM and SKIM for damaged terminals or chaffed wires. See COMPONENT LOCATIONS  . Check wiring harness for damage. Check for related Technical Service Bulletins (TSB). If no fault is found, test is complete. If fault is found, repair as necessary. Perform SKIS VERIFICATION TEST  under VERIFICATION TESTS.
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