Diagnostic Circuit Check

DIAGNOSTIC CIRCUIT CHECK
The Diagnostic Circuit Check is an organized approach to identifying a problem created by an antilock brake system (ABS) malfunction. It must be the starting point for any ABS complaint diagnosis, because it directs the service technician to the next logical step in diagnosing the complaint.
The Scan Data listed in the table may be used after completing the Diagnostic Circuit Check and finding the onboard diagnostics functioning properly and diagnostic trouble codes (DTCs) displayed.

NOTICE: Do not use a scan tool that displays faulty data. This can result in misdiagnosis and unnecessary parts replacement. Report that problem to the manufacturer.











Diagnostic Circuit Check