How to Diagnose the Problem

How To Diagnose The Problem
1. To avoid incorrect diagnostics, this information needs to be followed accurately. Unless stated, do not jump directly to a section that could contain the solution. Some important information may be missed.
2. The sections in CAPITALS and bold are the main sections that can be found in the contents.
3. The GO TO "SECTION" means to continue to check going to the "section".
4. The GO THROUGH "SECTION" means to go through the "section" and then to go back to the place the GO THROUGH was written.
5. BASIC ELECTRIC CIRCUITS:
You should understand the basic theory of electricity. This includes the meaning of voltage, amps, ohms, and what happens in a circuit with an open or shorted wire. You should also be able to read and understand wiring diagrams.

Check Trans Indicator
Find CHECK TRANS indicator and verify if it is
A. Flashing: GO TO DIAGNOSTIC CHECK. With Generic Scan Tool
B. Staying on: GO THROUGH CHECK TRANS CHECK.
C. Is never ON when the ignition key is turned on: GO THROUGH CHECK TRANS CHECK. Description of On-Board Diagnostics





D. Is ON during 2 seconds at ignition but OFF after: Normal operation. No DTC or malfunction.