Pre-Diagnosis Worksheet

This form is intended as an aid in recording vehicle reference information (make, model, mileage, etc.) and preliminary diagnostic information (symptoms) about a vehicle before retrieving codes. This information when used along with any retrieved codes, can be beneficial in isolating and diagnosing the cause of the malfunction, particularly for “intermittent” problems that occur only under specific operating conditions.

Click here to download the Preliminary Vehicle Diagnosis Worksheet.


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