Inspection & Verification
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.
- Verify customer complaint by operating system in question. Inspect vehicle for any obvious electrical component wiring or harness connector damage. Inspect connectors for loose, damaged or corroded terminals. Check central junction box fuse No. 3 (20-amp) and fuses related to system in question.
- Inspect 16-pin Data Link Connector (DLC) harness connector and pins for damage. DLC is located below driver's side of instrument panel, to right of steering column. See Fig 1. If harness connector and pins are okay, go to next step. If harness connector or pins are damaged, repair as necessary and proceed to next step.
- If problem is still present after performing inspection, connect New Generation Star (NGS) tester to DLC. Select vehicle to be tested from NGS tester menu. If NGS tester does not communicate with vehicle, ensure program card is properly installed. Check NGS tester cable connections and ensure ignition switch is in RUN position. If NGS tester still does not communicate with vehicle, diagnose communication network. See TEST M: NO MODULE/NETWORK COMMUNICATION - NO POWER TO NGS TESTER under SYSTEM TESTS. If NGS tester communicates with vehicle, perform data link diagnostic test. See DATA LINK DIAGNOSTIC TEST .