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Test B: Generic Electronic Module Does Not Respond To NGS Tester

  1. Turn ignition switch to LOCK position. Disconnect GEM module harness connector C352. Inspect connector for loose, damaged or corroded terminals. If connector is okay, go to next step. If problem exists, repair connector as necessary.
  2. Measure resistance in Light Blue/White wire between terminal No. 6 at GEM module harness connector C352 and terminal No. 7 at DLC. See Figure and Fig 1 . If resistance is 5 ohms or less, replace GEM. If resistance is greater than 5 ohms, repair open in Light Blue/White wire.
Fig 1: Identifying GEM Module Harness Connector C352 Terminals
G99F02718Courtesy of FORD MOTOR CO.