Retrieving Diagnostic Trouble Codes

WARNING: This page is about a different car, the 2002 Mazda Millenia and 2001 Mazda Millenia. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Before retrieving DTCs, ensure proper battery voltage exists for self-diagnostic system operation. If any DTCs are present other than those listed below, see appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.

Ensure ignition switch is in OFF position. Connect scan tool to DLC located under left side of instrument panel. See Fig 1. Turn ignition on. Check for stored DTCs. See DIAGNOSTIC TROUBLE CODE DEFINITIONS . For trouble shooting of DTCs, see DIAGNOSTIC TESTS .

Fig 1: Connecting Scan Tool To Data Link Connector

Courtesy of MAZDA MOTORS CORP.

NOTE: Once repairs have been performed, DTCs must be cleared from PCM memory and vehicle test driven. See CLEARING DIAGNOSTIC TROUBLE CODES .