Self-Diagnostic System: Notes

WARNING: This page is about a different car, the 2002 Ford Focus. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Tests included in this article are written specifically for Worldwide Diagnostic System (WDS) or New Generation Star (NGS) tester. Other OBD II-compatible scan tools may be used, but may not be equipped with equal test function capabilities. Refer to scan tool manufacturer's instructions.

NOTE: Before checking for any communication concern, inspect Data Link Connector (DLC) for loose, damaged or corroded terminals. Pay particular attention to terminals No. 2 (Gray/Red wire), No. 7 (White/Black wire) and No. 10 (Blue/Red wire).