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Test F: Driver's Seat Module Does Not Respond To NGS Tester

WARNING: This page is about a different car, the 2002 Lincoln Navigator, 2002 Ford Expedition, 2001 Lincoln Navigator, and 2001 Ford Expedition. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: After making any repair, perform data link diagnostic test. See DATA LINK DIAGNOSTIC TEST  under SELF-DIAGNOSTIC SYSTEM.
  1. Turn ignition switch to LOCK position. Disconnect Driver's Seat Module (DSM) 22-pin harness connector C356. DSM is located under driver's seat. Inspect DSM harness connector for loose, damaged or corroded terminals. If problem does not exist with harness connector, go to next step. If problem exists with harness connector, repair as necessary.
  2. Measure resistance in Light Blue/White wire between DSM harness connector C356 terminal No. 22 and Data Link Connector (DLC) terminal No. 7. See Figure and Fig 1 . If resistance is 5 ohms or less, go to next step. If resistance is more than 5 ohms, go to step  4.
  3. Connect DSM harness connector. Perform data link diagnostic test. See DATA LINK DIAGNOSTIC TEST  under SELF-DIAGNOSTIC SYSTEM. If DSM module responds to NGS tester, system is functioning properly. If DSM module does not respond to NGS tester, replace DSM module. See DRIVER'S SEAT MODULE  under REMOVAL & INSTALLATION.
  4. Disconnect and inspect both halves of in-line Black 66-pin harness connector C201. See Figure. Inspect harness connector for loose, damaged or corroded terminals. If problem does not exist with harness connector, go to next step. If problem exists with harness connector, repair as necessary.
  5. Measure resistance of Light Blue/White wire between DLC terminal No. 7 and in-line harness connector C201 terminal No. 11 (male half). See Figure and Fig 2 . If resistance is 5 ohms or less, repair open in Light Blue/White wire between DSM and female half of in-line harness connector C201. If resistance is more than 5 ohms, repair open in Light Blue/White wire between male half of in-line harness connector C201 and DLC.
Fig 1: Identifying Driver's Seat Module Harness Connector C356 Terminals
G97D28772Courtesy of FORD MOTOR CO.
Fig 2: Identifying In-Line Harness Connector C201 Connector Terminals (Female Side Shown)
G98F01436Courtesy of FORD MOTOR CO.
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