Visual Inspection
This inspection will identify modifications or additions to the vehicle operating system that may affect diagnosis.a. Vehicle modification.
b. Electronic add-on items:
- air conditioning
- generators (alternators)
- engine turbos
- cellular telephones
- cruise controls
- CB radios
- linear boosters
- backup alarm signals
- computers
c. Leaks
d. Proper linkage adjustments
e. These items, if not installed properly, will affect powertrain control module or transaxle function. Pay particular attention to add-on wiring splices in the powertrain control module harness or transmission wiring harness, abnormal tire size, or axle ratio changes.