DTC P2757 [SJ6A-EL]


DTC P2757	Torque converter clutch (TCC) stuck off
DETECTION CONDITION	• TCM detects that TCC control solenoid does not change from on when engine is running Diagnostic support note: • The MIL illuminates if the TCM detects the above malfunction condition in two consecutive drive cycles. • PENDING CODE is available. • FREEZE FRAME DATA is available. • The AT warning light illuminates. • The DTC is stored in the TCM memory.
POSSIBLE CAUSE	• ATF level low • Deteriorated ATF • TCC control solenoid, and line pressure control solenoid stuck • Line pressure low • Control valve stuck. • TCM malfunction


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 Transmission 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 TRANSMISSION FLUID (ATF) REPLACEMENT [SJ6A-EL].)
4	INSPECT ATF LEVEL • Start the engine. • Warm up the AT. • Is the ATF level within the specification? (See AUTOMATIC TRANSMISSION FLUID (ATF) LEVEL ADJUSTMENT [SJ6A-EL].)	Yes	Go to the next step.
4		No	Add ATF to the specified level, then go to Step 7. (See AUTOMATIC TRANSMISSION FLUID (ATF) LEVEL ADJUSTMENT [SJ6A-EL].)
5	INSPECT LINE PRESSURE • Start the engine. • Measure the line pressure. (See Line Pressure Test.) • Are the line pressures within the specifications?	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 [SJ6A-EL].) (See CONTROL VALVE BODY INSTALLATION [SJ6A-EL].)
6	INSPECT SOLENOID VALVE • Inspect the solenoid valve. (See SOLENOID VALVE INSPECTION [SJ6A-EL].) • 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 [SJ6A-EL].) (See CONTROL VALVE BODY INSTALLATION [SJ6A-EL].)
7	VERIFY TROUBLESHOOTING OF DTC P2757 COMPLETED • Make sure to reconnect all the disconnected connectors. • Clear the DTC from the memory using the M-MDS. • Start the engine. • Warm up engine and AT. • 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 no operation) • Is the PENDING CODE for this DTC present?	Yes	Replace the TCM, then go to the next step. (See TCM REMOVAL/INSTALLATION [SJ6A-EL].)
7		No	Go to the next step.
8	VERIFY AFTER REPAIR PROCEDURE • Perform the "After Repair Procedure". (See AFTER REPAIR PROCEDURE [SJ6A-EL].) • Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [SJ6A-EL].)
8		No	DTC troubleshooting completed.