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Test K: Invalid Or Missing Vehicle Security Data

WARNING: This page is about a different car, the 2002 Lincoln Blackwood and 2002 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.
  1. Turn ignition switch to START position. Observe THEFT indicator. Indicator should illuminate, then go out within 3 seconds and vehicle should start. If vehicle will not start, go to next step. If THEFT indicator operates as specified and vehicle starts, verify proper Powertrain Control Module (PCM) calibration. Check for any PCM calibration related technical service bulletins.
  2. Turn ignition switch to LOCK position. Connect New Generation Star (NGS) tester to Data Link Connector (DLC). DLC is located below center of instrument panel, right of steering column. Turn ignition switch to RUN position. Retrieve and record any DTCs. Clear continuous DTCs. Using NGS, perform PCM self-test. Record any DTCs that exist and go to next step. If NGS tester does not communicate with PCM, repair module communications concern. See MODULE COMMUNICATIONS NETWORK - BLACKWOOD article or MODULE COMMUNICATIONS NETWORK - F150 PICKUP article.
  3. If DTC P1260 was retrieved in previous step, go to next step. If DTC P1260 was not retrieved during previous step, check PCM power and ground circuits. See COMPUTERIZED ENGINE CONTROLS in SYSTEM & COMPONENT TESTING - EEC-V - GASOLINE article in ENGINE PERFORMANCE.
  4. Perform data link diagnostic test. See DATA LINK DIAGNOSTIC TEST under SELF-DIAGNOSTIC SYSTEM in MODULE COMMUNICATIONS NETWORK - BLACKWOOD article or MODULE COMMUNICATIONS NETWORK - F150 PICKUP article. Turn ignition switch to LOCK position. If DTC U1147 does not exist, system is functioning properly at this time. If DTC U1147 exists, replace instrument cluster. See INSTRUMENT CLUSTER  under REMOVAL & INSTALLATION. Cycle ignition switch to RUN position using 2 encoded ignition keys. Go to TEST I: POWERTRAIN CONTROL MODULE ID DOES NOT MATCH INSTRUMENT CLUSTER ID  to match new instrument cluster ID to PCM. Repeat self-test. If DTC U1147 is still present, replace PCM and repeat self-test. See POWERTRAIN CONTROL MODULE .
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