Initial Inspection and Diagnostic Overview

INTRODUCTION TO A/T KEY INTERLOCK AND SHIFT LOCK MECHANISMS
If the key interlock and shift lock mechanisms indicates a malfunction, the key interlock cable, the shift lock cable or the selector lever assembly may be defective. In this case, follow troubleshooting below.

A/T KEY INTERLOCK AND SHIFT LOCK MECHANISMS DIAGNOSTIC TROUBLESHOOTING STRATEGY
Use these steps to plan your diagnostic strategy. If your follow then carefully, you will be sure that you have exhausted most of the possible ways to find A/T key interlock and shift lock mechanisms fault.
1. Gather information from the customer.
2. Verify that the condition described by the customer exists.
3. Find the malfunction by follows the Symptom Chart.
4. Verify malfunction is eliminated.