LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Ford >> 1998 >> Contour Base, Automatic >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> Module Communications Network >> Testing >> Test F: No Module/Network Communication
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Test F: No Module/Network Communication

  1. Turn ignition off. Inspect NGS tester connector for loose, damaged or corroded terminals. Repair as necessary and retest system for normal operation. If connector is okay, go to next step.
  2. Inspect Data Link Connector (DLC) for physical damage, bent terminals or corrosion. Repair as necessary and retest system for normal operation. If connector is okay, go to next step.
  3. Remove and inspect fuse No. 28 (30-amp) from instrument panel fuse block. If fuse is blown, go to next step. If fuse is okay, reinstall fuse and go to step 5).
  4. Replace fuse and retest system for normal operation. Recheck fuse. If fuse is okay, go to next step. If fuse is blown, repair short to ground in circuit 29-PB9 (Orange wire) between instrument panel fuse block and DLC. Retest system for normal operation.
  5. Measure voltage between ground and terminal No. 16 (Orange wire) at DLC. See Figure. If voltage is more than 10 volts, go to next step. If voltage is 10 volts or less, repair circuit 29-PB9 (Orange wire) between instrument panel fuse block and DLC. Retest system for normal operation.
  6. Measure resistance between ground and terminals No. 4 (Black wire) and No. 5 (Black/Orange wire) at DLC. If both resistance readings are less than 5 ohms, repair or replace NGS tester. Retest system for normal operation. If any resistance reading is 5 ohms or more, repair open in Black wire or Black/Orange wire between ground and DLC. Retest system for normal operation.
scientia non olet · About LEMON Manuals