Test K: NVM Configuration Failure
- Turn ignition switch to LOCK position. Connect New Generation Star (NGS) tester to Data Link Connector (DLC). DLC is located below driver's side of instrument panel, to right of steering column. Turn ignition switch to RUN position. Using NGS tester, perform instrument cluster self-test. If no DTCs are retrieved, system is okay at this time. If only DTC B2141 is retrieved, go to next step. If DTC B2141 and DTC U1147 are retrieved together, perform TEST C: INVALID/MISSING DATA FOR VEHICLE SECURITY .
- Use diagnostic card for PCM active command KEEP ALIVE MEMORY RESET. Turn ignition switch to LOCK position. Turn ignition switch to RUN position for 30 seconds. Turn ignition switch to LOCK position. Attempt to start vehicle. If vehicle does not start, go to next step. If vehicle starts, system is okay at this time.
- Turn ignition switch to LOCK position. Using NGS tester, clear all continuous DTCs. Turn ignition switch to RUN position for 30 seconds. Turn ignition switch to LOCK position. Using NGS tester, perform instrument cluster self-test. If no DTCs are retrieved, system is okay at this time. If DTC B2141 is retrieved, go to next step. If any other DTCs are retrieved, perform appropriate test. See INSTRUMENT CLUSTER DIAGNOSTIC TROUBLE CODE INDEX table under SELF-DIAGNOSTIC SYSTEM.
- Verify PCM calibration is correct for vehicle. See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE. If calibration is correct, replace instrument cluster. See ANALOG INSTRUMENT PANELS - MUSTANG article. Cycle ignition switch to RUN position using 2 encoded ignition keys. Perform TEST J: SECURITY IDENTIFICATION DOES NOT MATCH BETWEEN INSTRUMENT CLUSTER & POWERTRAIN CONTROL MODULE . Perform instrument cluster self-test and clear DTCs.