DTC P0746: Pressure Control Solenoid "A" Performance (Shift Solenoid Valve SL1) [11/2021 - ]: 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 / ECT / Trouble Codes.

   Powertrain > ECT > Trouble Codes 

5. Read the DTCs using the Techstream.

   Result

   Result	Proceed to
   Only DTCs P0746 and P2714 are output	A
   Only DTCs P0746 and P0873 are output	B
   P0746, P0873, P2714, and other DTCs are output	C

   HINT: 

   If DTCs other than P0746, P0873 and P2714 are output, perform troubleshooting for those DTCs first.

Result: 

B 

GO TO DTC P0873 FLOWCHART. Refer to  DTC P0873: Transmission Fluid Pressure Sensor / Switch "C" Circuit High [11/2021 - ] 

Result: 

C 

GO TO DTC CHART. Refer to  DIAGNOSTIC TROUBLE CODE CHART [11/2021 - ] 

Result: 

A 

See step  2

1. Clear the DTCs.

   HINT: 

   Write down the currently output DTCs before clearing them.

   Powertrain > ECT > Clear DTCs 

2. Start the engine, drive at a low vehicle speed and perform the inspection.

   Result

   Result	Proceed to
   Vehicle cannot be driven (vehicle changes to neutral)	A
   Vehicle can be driven (vehicle creep occurs)	B

Result: 

B 

See step  4

Result: 

A 

See step  3

1. Remove the shift solenoid valve SL1.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Component without harness connected (Shift Solenoid Valve SL1)

   Refer to DISASSEMBLY [11/2021 - ]

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   Terminal 1 of the shift solenoid valve SL1 - 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 2 and a negative (-) lead to terminal 1 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: 

OK 

See step  5

Result: 

NG 

REPLACE SHIFT SOLENOID VALVE SL1. Refer to  COMPONENTS [11/2021 - ] 

1. Remove the shift solenoid valve SLT.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Component without harness connected (Shift Solenoid Valve SLT)

   Refer to DISASSEMBLY [11/2021 - ]

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   Terminal 1 of the shift solenoid valve SLT - 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 2 and a negative (-) lead to terminal 1 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 SHIFT SOLENOID VALVE SLT. Refer to  COMPONENTS [11/2021 - ] 

Result: 

OK 

See step  5

1. Check the transmission valve body assembly.

   Refer to REMOVAL [11/2021 - ]

   OK

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

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPAIR OR REPLACE AUTOMATIC TRANSMISSION ASSEMBLY. Refer to  COMPONENTS [11/2021 - ] 

Result: 

NG 

REPAIR OR REPLACE TRANSMISSION VALVE BODY ASSEMBLY. Refer to  COMPONENTS [11/2021 - ]