DTC P0740-11: Torque Converter Clutch Circuit Short to Ground [04/2018 -]: Procedure

1. Disconnect the C52 transmission wire connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Component without harness connected (Transmission Wire)

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   13 (SL) - Body ground	20°C (68°F)	11 to 15 Ω

3. Connect the C52 transmission wire connector.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

See step  4

Result: 

OK 

See step  2

1. Disconnect the C56 ECM connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   C56-62 (SL) - Body ground	20°C (68°F)	11 to 15 Ω

   Result

   Proceed to
   OK
   NG

Result: 

NG 

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

Result: 

OK 

See step  3

1. Replace the ECM.

   Refer to COMPONENTS [04/2018 -]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

PERFORM REGISTRATION. Refer to  REGISTRATION [04/2018 -] 

1. Remove the solenoid (SL) valve.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *1	Solenoid (SL) Valve

   Refer to DISASSEMBLY [04/2018 -]

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   Solenoid (SL) valve connector terminal - Solenoid (SL) valve 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 [04/2018 -] 

Result: 

NG 

REPLACE SOLENOID (SL) VALVE. Refer to  COMPONENTS [04/2018 -]