Diagnostic procedure

WARNING: This page is about a different car, the 2005 Mazda MPV. However, it is still accessible from the selected car via links, so may be relevant.

NOISE OCCURS AT IDLE WHEN VEHICLE IS STOPPED IN ALL POSITIONS/RANGES - DIAGNOSTIC PROCEDURE

STEP	INSPECTION		ACTION
1	Inspect engine condition. Is any engine concern (e.g. Rough idle)?	Yes	Go to appropriate symptom troubleshooting. (See SYMPTOM DIAGNOSTIC INDEX .)
1		No	Replace basic inspection and repair or replace any malfunctioning parts according to inspection result
2	Verify test results. If okay, return to DIAGNOSTIC INDEX to service any additional symptoms. If malfunction remains, inspect related Service Bulletins and/or On-line Repair Information and perform repair or diagnosis. If vehicle is repaired, troubleshooting completed. If vehicle is not repaired or additional diagnostic information not available, replace TCM.