DTC P0750-15: Shift Solenoid "A" Circuit Short to Battery or Open [09/2015 - ]: Procedure

1. Disconnect the D2 ECM connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   D2-62 (S1) - Body ground	20°C (68°F)	11 to 15 Ω

   Result

   Proceed to
   OK
   NG

Result: 

NG 

See step  3

Result: 

OK 

See step  2

1. Replace the ECM.

   Refer to COMPONENTS [09/2015 - ]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

PERFORM A/T CODE REGISTRATION. Refer to  REGISTRATION [09/2015 - ] 

1. Disconnect the D56 transmission wire connector.
2. Disconnect the D2 ECM connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   D56-18 (SR) - D2-62 (S1)	Always	Below 1 Ω
   D56-18 (SR) or D2-62 (S1) - Other terminals	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR (TRANSMISSION WIRE - ECM) 

Result: 

OK 

See step  4

1. Remove the shift solenoid valve S1.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *1	Shift Solenoid Valve S1

   Refer to DISASSEMBLY [09/2015 - ]

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   Shift solenoid valve S1 connector terminal - Shift solenoid valve S1 body	20°C (68°F)	11 to 15 Ω

3. Connect a positive (+) lead from the battery to the terminal of the solenoid valve connector, and a negative (-) lead to the solenoid body. 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 

REPAIR OR REPLACE TRANSMISSION WIRE. Refer to  COMPONENTS [09/2015 - ] 

Result: 

NG 

REPLACE SHIFT SOLENOID VALVE S1. Refer to  COMPONENTS [09/2015 - 08/2019]  , or refer to  COMPONENTS [08/2019 - ]