Pre-Diagnosis Worksheet

The purpose of this form is to help you gather some preliminary information on your vehicle before you retrieve any codes.

By having a complete account of your vehicle's current problem(s), you will be able to systematically pinpoint the problem(s) by comparing your answers to the fault code(s) you retrieve.

You can also provide this information to your mechanic to guide him or her in the right direction and possibly avoid any costly and unnecessary diagnostic(s) or repair(s). It is important for you to complete this form to help you and/or your mechanic have a clear understanding of your vehicle's problem(s).