Verification of Condition

PRELIMINARY INSPECTION
The following items must be checked before proceeding:

Know And Understand The Concern
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
After understanding when and how the concern occurs, proceed to verifying the concern.

Verification Of Condition

Special Tools:

This provides information which must be used in both determining the actual cause of customer concerns and performing the appropriate repair procedures.
The following procedures must be used when verifying customer concerns for the CD4E transaxle:

Determine Customer Concerns

NOTE:
- If noise/vibration, check for dependencies: rpm, vehicle speed, shift, gear, range or temperature.
- Some CD4E transaxle conditions may cause engine concerns. The torque converter clutch not disengaging will stall the engine.

- Hot or cold vehicle operating temperature
- Hot or cold ambient temperature
- Type of terrain
- Vehicle loaded/unloaded
- City/highway driving
- Upshift
- Downshift
- Coasting
- Engagement
- Noise/vibration

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 properly 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. Proper linkage adjustments.