How To Proceed With Troubleshooting

In general, the ECU controlled system is considered to be a very intricate system requiring a high level of technical knowledge and expert skill to troubleshoot. However, the fact is that if you proceed to inspect the circuits one by one, troubleshooting of these systems is not complex. If you have adequate understanding of the system and a basic knowledge of electricity, accurate diagnosis and necessary repair can be performed to locate and fix the problem. The ALLDATA system, using OEM procedures, is designed through emphasis of the above stand point to help service technicians perform accurate and effective troubleshooting.

Make use of the "Flow of Diagnosis" and the explanation articles under this section when diagnosing a problem in a Powertrain Management related system.