Automatic Transmission Diagnostic Procedures: Introduction: Notes

The procedures contained in this service information include all of the specifications, instructions, and graphics needed to diagnose 45RFE/545RFE Electronic Automatic Transmission (EATX) problems. The diagnostics in this service procedure are based on the failure condition or symptom being present at the time of diagnosis.

When repairs are required, refer to the appropriate removal and repair procedure in REMOVAL & INSTALLATION .

Diagnostic procedures change every year. New diagnostic systems may be added and/or carry over systems may be enhanced. It is recommended that you review the entire service information to become familiar with all new and changed diagnostic procedures.