Test E: No Module/Network Communications - No Power To DLC C2018
- Inspect NGS tester connector for loose, damaged or corroded terminals. Repair connector as necessary and retest system for normal operation. If connector is okay, go to next step.
- Turn ignition off. Inspect Data Link Connector (DLC) C2018 for physical damage, bent terminals or corrosion. DLC C2018 is located below driver's side of instrument panel, to right of steering column. Repair as necessary and retest system for normal operation. If connector is okay, go to next step.
- Measure voltage between ground and terminal No. 16 (Red wire) at DLC. See Fig 1. If voltage is more than 10 volts, go to next step. If voltage is 10 volts or less, repair Red wire between instrument panel fuse block and DLC C2018. Retest system for normal operation.
- Measure resistance between ground and terminals No. 4 (Black wire) and No. 5 (Black/Red 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/Red wire between ground and DLC C2018. Retest system for normal operation.
Courtesy of FORD MOTOR CO.