System Tests: Notes
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:
All diagnostic tests are written specifically for New Generation Star (NGS) tester and Worldwide Diagnostic System (WDS) testers. Most generic scan tools should be able to perform all test procedures.
NOTE:
If malfunction indicator light is illuminated or flashes, check PCM for stored codes. See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.
Before performing any system test, perform complete visual inspection of system. Check all fuses. Check operation of stoplights including high mounted stoplight. Check speedometer operation. Repair as necessary.
SYMPTOM INDEX
| Symptom | Perform Test | ||
|---|---|---|---|
| Cruise Control Inoperative | A | ||
| Set Speed Fluctuates | B | ||
| Cruise Control System Does Not Disengage When Brakes Are Applied | C | ||
| Cruise Control Switch Does Not Operate | D | ||
| No Dynamic Pull Occurs/Speed Control Inoperative (Expedition) | E | ||
| Brake Pedal Position Switch Circuit Failure (Expedition) | F | ||
| Brake Pressure Switch Circuit Failure (Expedition) | G | ||
| CRUISE Indicator Always On (Expedition) | H | ||
| Speed Signal Circuit | I | ||
| CRUISE Indicator Inoperative | (1) | ||
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