Visual Inspection: Notes

This inspection will identify modifications or additions to the vehicle operating system that may affect diagnosis.

Inspect vehicle for non-Ford approved add-on devices such as:

• Electronic add-on items
  • Air conditioning.
  • Generators (alternators).
  • Engine turbo.
  • Cellular telephones.
  • Cruise controls.
  • CB radios.
  • Linear amplifiers.
  • Backup alarm signals.
  • Electronic brakes for trailer towing.
  • Computers.
• Vehicle modifications.

These items, if not installed correctly, will affect powertrain control module (PCM) or transmission function. Pay particular attention to add-on wiring splices in the PCM harness or transmission wiring harness, abnormal tire size or axle ratio changes.

Leaks; refer to LEAKAGE INSPECTION  in this article.