Description

NOTE: Only perform this test when directed to do so. This drive test is only designed to resolve a Code 4 condition. Performing this test for any other reason will often lead to incorrect diagnosis of system problem and incorrect replacement of components.

PURPOSE
- This drive test assumes that pinpoint test Code 4 has been completed. If this is not the case, complete the test before proceeding. System Pre Check

- If Pinpoint Test Code 4 is not successful in resolving the system concern, this drive test can be used to conduct additional, more in depth, diagnostics.

DRIVE DESCRIPTION
This drive test is designed to induce a Code 4 if there is a system concern that can create a Code 4 on a repeatable basis. Carefully record the data when performing the drive test. Know what part of the drive test you are in when a diagnostic trouble Code 4 is detected.