Diagnostic Strategy: Notes

NOTE: Do not take short cuts or assume that critical checks or adjustments have already been made.

Troubleshooting an electronically controlled automatic transmission is simplified by using the proven method of diagnosis. One of the most important things to remember is that there is a definite procedure to follow.

Follow the procedures as written to avoid missing critical components or steps.

To diagnose a concern correctly, the technician may have to use the following:

Refer to INTRODUCTION - GASOLINE article.
Technical Service Bulletins (TSBs).
Wiring Diagram.

This information provides the information required when diagnosing transmission concerns.

Using the Diagnostic Flowchart as a guide, follow the steps as indicated.