Verification of Condition

PRELIMINARY INSPECTION
The following items must be checked prior to beginning the diagnostic procedures:

Know And Understand The Condition
In order to properly diagnose a concern, first understand the customer complaint or condition. Customer contact may be required in order to begin to verify the concern. Understand the conditions as to when the concern occurs. For example:
- Hot or cold vehicle temperature.
- Hot or cold ambient temperature.
- Vehicle driving conditions.
- Vehicle loaded/unloaded.

After understanding when and how the concern occurs, proceed to Verification of Condition.

Verification Of Condition

NOTE: Some transaxle conditions may cause engine concerns. If the torque converter clutch does not disengage, the engine will stall.

Before verifying the condition, check fluid level and condition.

Special Tools:

Required Equipment
- 88 Digital Multimeter.
- 104-Pin Breakout Box.
- New Generation STAR (NGS) Tester.

VISUAL INSPECTION
This inspection will identify modifications or additions to the vehicle operating system that may affect diagnosis. Inspect the vehicle for:
- Add-on devices such as:
- Air conditioning.
- Generator (alternator).
- Engine turbo.
- Cellular telephone.
- Cruise control.
- CB radio.
- Linear booster.
- Backup alarm signal.
- Computer.
- Vehicle modification.

These items, if not installed properly, will affect the 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.
- Leaks.
- Proper linkage adjustments.