Diagnostic Process

Perform the following steps in order when servicing the ABS/EBD system. Failure to do so may result in the loss of important diagnostic data and may lead to difficulties and time-consuming diagnosis procedures.

1. Perform the tests of the table below.
2. Perform a road test if directed by the table.
   • Test drive the vehicle while using the snapshot feature of the scan tool.
   • Perform normal acceleration, stopping and turning maneuvers.
   • If this does not reproduce the malfunction, perform an ABS stop on a low friction surface such as gravel.
3. Clear the Diagnostic Trouble Codes (DTCs) after all system malfunctions have been corrected.