FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

Initial Inspection

Visual Inspection
This inspection will identify modifications or additions to the vehicle operating system that may affect diagnosis.
1. Vehicle modification
2. Electronic add-on items:
- Air conditioning
- Generators (Alternators)
- Engine turbo
- Cellular telephone
- Cruise control
- CB radio
- Linear boosters
- Backup alarm signals
- Computer
3. These above items, if not correctly installed, will affect Powertrain Control Module (PCM) or transaxle function. Pay particular attention to add-on wiring splices in the PCM harness or transaxle wiring harness, abnormal tire size, or axle ratio changes.
4. Leaks.
5. Correct linkage adjustments.