Retrieving Diagnostic Trouble Codes

WARNING: This page is about a different car, the 2002 Mazda 626 and 2001 Mazda 626. However, it is still accessible from the selected car via links, so may be relevant.

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

Ensure ignition is in OFF position. Connect scan tool to DLC located under left side of instrument panel. See Fig 1. Turn ignition switch to ON position. 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, DTC must be cleared from PCM memory and vehicle test driven. See CLEARING DIAGNOSTIC TROUBLE CODES .