DTC P2756-7F: Torque Converter Clutch Pressure Control Solenoid Control Actuator Stuck Off [09/2019 - ]: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Powertrain / Transmission / Trouble Codes.

   Powertrain > Transmission > Trouble Codes 

5. Read the DTCs using the Techstream.

   Result

   Result	Proceed to
   Only DTC P2756-7F is output	A
   DTC P2756-7F and other DTCs are output	B

   HINT: 

   • If any DTCs other than P2756-7F are output, perform troubleshooting for those DTCs first.
   • If a solenoid valve is stuck ON or OFF, DTCs for several solenoid valves including the malfunctioning solenoid valve will be stored.

Result: 

B 

GO TO DTC CHART. Refer to  DIAGNOSTIC TROUBLE CODE CHART [09/2019 - 10/2020]  , or refer to  DIAGNOSTIC TROUBLE CODE CHART [10/2020 - ] 

Result: 

A 

See step  2

1. Remove the solenoid (SLU) valve.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Component without harness connected (Solenoid (SLU) Valve)

   Refer to DISASSEMBLY [06/2017 - ]

2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   Solenoid (SLU) valve connector terminal 1 - Terminal 2	20°C (68°F)	5.0 to 5.6 Ω

3. Connect a positive (+) lead from the battery with a 21 W bulb to terminal 1 and a negative (-) lead to terminal 2 of the solenoid valve connector. Check that the valve moves and makes an operating sound.

   OK

   Valve moves and makes an operating sound.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE SOLENOID (SLU) VALVE. Refer to  COMPONENTS [06/2017 - ] 

Result: 

OK 

See step  3

1. Inspect the transmission valve body assembly.

   Refer to REMOVAL [08/2018 - ]

   OK

   There is no foreign matter on each valve and they operate smoothly.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE TRANSMISSION VALVE BODY ASSEMBLY. Refer to  COMPONENTS [06/2017 - ] 

Result: 

OK 

See step  4

1. Inspect the torque converter assembly.

   Refer to INSPECTION [06/2017 - ]

   OK

   The torque converter assembly is normal.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE TORQUE CONVERTER ASSEMBLY. Refer to  COMPONENTS [09/2019 - ] 

Result: 

OK 

See step  5

1. Repair or replace the automatic transaxle assembly.

   Refer to COMPONENTS [09/2019 - ]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

PERFORM REGISTRATION. Refer to  REGISTRATION [06/2017 - ]