Diagnostic procedure

WARNING: This page is about a different car, the 2005 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

NO. 23 TRANSAXLE OVERHEATS [AW6A-EL] DIAGNOSTIC PROCEDURE

STEP	INSPECTION		ACTION
1	Is the line pressure normal? (See LINE PRESSURE TEST .)	Yes	Go to the next step.
1	Is the line pressure normal? (See LINE PRESSURE TEST .)	No	Repair or replace any malfunctioning parts according to the inspection results.
2	Is stall speed normal? (See STALL TEST .)	Yes	Go to the next step.
2	Is stall speed normal? (See STALL TEST .)	No	Repair or replace any malfunctioning parts according to the inspection results.
3	Inspect the TFT sensor and related wiring harness: vibration, intermittent open/short circuit (See TRANSAXLE FLUID TEMPERATURE (TFT) SENSOR INSPECTION .) Is it normal?	Yes	Go to the next step.
3		No	Repair or replace part if necessary.
4	Inspect the line pressure control solenoid. (See SOLENOID VALVE INSPECTION .) Is it normal?	Yes	Go to the next step.
4		No	Replace the control valve body. (See CONTROL VALVE BODY REMOVAL/INSTALLATION .)
5	Inspect for bending, damage, corrosion or kinks of the oil cooler pipes. Are oil cooler pipes normal?	Yes	Replace the transaxle. (See AUTOMATIC TRANSAXLE REMOVAL/INSTALLATION .)
5		No	Replace any malfunctioning parts.
6	Verify test results. If normal, return to the diagnostic index to service any additional symptoms. If malfunction remains, inspect the related Service Bulletins and/or On-line Repair Information and perform repair or diagnosis. If the vehicle is repaired, troubleshooting completed. If the vehicle is not repaired or additional diagnostic information is not available, replace the TCM.