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.

DTC P2757 [AW6A-EL] DIAGNOSTIC PROCEDURE

STEP	INSPECTION		ACTION
1	VERIFY FREEZE FRAME DATA HAS BEEN RECORDED Has the FREEZE FRAME DATA been recorded?	Yes	Go to the next step.
1		No	Record the FREEZE FRAME DATA on the repair order, then go to the next step.
2	VERIFY RELATED REPAIR INFORMATION AVAILABILITY Verify related Service Bulletins and or/on-line repair information availability. Is any related repair information available?	Yes	Perform repair or diagnosis according to the available repair information. If the vehicle is not repaired, go to the next step.
2		No	Go to the next step.
3	INSPECT ATF CONDITION Turn the ignition switch to the LOCK position. Inspect the ATF condition. Clear red: Normal Light red (pink): Water mixed in fluid Reddish brown: Deteriorated ATF Is it normal? (See AUTOMATIC TRANSAXLE FLUID (ATF) CONDITION INSPECTION .)	Yes	Go to the next step.
3		No	If the ATF color is milky or reddish brown, replace ATF, then go to Step 7. (See AUTOMATIC TRANSAXLE FLUID (ATF) REPLACEMENT .)
4	INSPECT ATF LEVEL Start the engine. Warm up the ATX. Is the ATF level within the specification? (See AUTOMATIC TRANSAXLE FLUID (ATF) LEVEL INSPECTION .)	Yes	Go to the next step.
4		No	Add ATF to the specified level, then go to Step 7. (See AUTOMATIC TRANSAXLE FLUID (ATF) LEVEL INSPECTION .)
5	INSPECT LINE PRESSURE Start the engine. Measure the line pressure. Specification D, M range Idle: 350-410 kPa {3.6-4.1 kgf/cm ² , 51-59 psi} Stall: 1,375-1,465 kPa {14.1-14.9 kgf/cm ² , 200-212 psi} R position Idle: 380-670 kPa {6.0-6.8 kgf/cm ² , 85-97 psi} Stall: 1,870-2,090 kPa {19.1-21.3 kgf/cm ² , 272-303 psi} Are the line pressures within the specifications? (See LINE PRESSURE TEST .)	Yes	Go to the next step.
5		No	All ranges: Replace the oil pump, then go to Step 7. Any ranges: Replace the control valve body, then go to Step 6. (See CONTROL VALVE BODY REMOVAL/INSTALLATION .)
6	INSPECT SOLENOID VALVE Inspect the solenoid valve. (See SOLENOID VALVE INSPECTION .) Is it normal?	Yes	Go to the next step.
6		No	Replace the control valve body, then go to the next step. (See CONTROL VALVE BODY REMOVAL/INSTALLATION .)
7	VERIFY TROUBLESHOOTING OF DTC P2757 COMPLETED Make sure to reconnect all the disconnected connectors. Clear the DTC from the memory using the WDS or equivalent. Start the engine. Warm up engine and ATX. Drive the vehicle under the following conditions for 2 s or more . ATF temperature (TFT PID): 20 °C {68 °F} or more Drive in the D range, 4GR-6GR (TCC operation) Are any DTCs present?	Yes	Replace the TCM, then go to the next step. (See TCM REMOVAL/INSTALLATION .)
7		No	Go to the next step.
8	VERIFY AFTER REPAIR PROCEDURE Perform the "After Repair Procedure". (See AFTER REPAIR PROCEDURE .) Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE .)
8		No	DTC troubleshooting completed.