DTC P0710-855: Transmission Fluid Temperature Sensor "A" Circuit; DTC P0712-856: Transmission Fluid Temperature Sensor "A" Circuit Low Input; DTC P0713-857: Transmission Fluid Temperature Sensor "A" Circuit High Input: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Select the following menu items: Powertrain / Hybrid Control / Data List / T/M Oil Temperature.
4. Read the data list.

   OK

   Tester Display	Condition	Tester Display
   T/M Oil Temperature	Vehicle has been left for 24 hours	Approximately equal to ambient temperature

NG → See step   3 

OK: Go to next step 

1. Check for intermittent problems. Refer to CHECK FOR INTERMITTENT PROBLEMS .

NG → REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA 

OK → See step   9 

1. Check the connections of the hybrid vehicle control ECU connectors.

   OK

   The connectors are connected securely and there are no contact problems.

NG → CONNECT SECURELY 

OK: Go to next step 

1. Turn the power switch off.
2. Disconnect connectors E55 and A74 from the hybrid vehicle control ECU.
   Fig 1: Identifying Connectors E55 And A74 From Hybrid Vehicle Control ECU

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Measure the resistance according to the value(s) in the table below.

   Standard resistance

   Tester Connection	Condition	Specified Condition
   E55-33 (THO) - A74-5 (E2)	50°F (10°C)	5.0 to 8.0 kΩ
   E55-33 (THO) - A74-5 (E2)	230°F (110°C)	0.22 to 0.28 kΩ

4. Turn the power switch on (IG).
5. Measure the voltage according to the value(s) in the table below.

   Standard voltage

   Tester Connection	Switch Condition	Specified Condition
   E55-33 (THO) - Body ground	Power switch on (IG)	Below 1 V

   NOTE:

   Turning the power switch on (IG) with the hybrid vehicle control ECU connectors disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.

6. Turn the power switch off.
7. Measure the resistance according to the value(s) in the table below.

   Standard resistance

   Tester Connection	Switch Condition	Specified Condition
   E55-33 (THO) - Body ground and other terminals	Power switch off	10 kΩ or higher
   A74-5 (E2) - Body ground and other terminals	Power switch off	10 kΩ or higher

NG → See step   6 

OK: Go to next step 

1. Check for intermittent problems. Refer to CHECK FOR INTERMITTENT PROBLEMS .

NG → REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA 

OK → See step   9 

1. Check the connection of the transmission wire connector.

   OK

   The connector is connected securely and there are no contact problems.

NG → CONNECT SECURELY 

OK: Go to next step 

1. Disconnect the transmission wire connector.
   Fig 2: Checking Harness And Connector (Hybrid Vehicle Control ECU Transmission Wire)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Turn the power switch on (IG).
3. Measure the voltage according to the value(s) in the table below.

   Standard voltage

   Tester Connection	Switch Condition	Specified Condition
   E55-33 (THO) - Body ground	Power switch on (IG)	Below 1 V
   A74-5 (E2) - Body ground	Power switch on (IG)	Below 1 V

   NOTE:

   Turning the power switch on (IG) with the hybrid vehicle control ECU connectors disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.

4. Turn the power switch off.
5. Measure the resistance according to the value(s) in the table below.

   Standard resistance (Check for open)

   Tester Connection	Switch Condition	Specified Condition
   E55-33 (THO) - E61-9 (THO)	Power switch off	Below 1 Ω
   A74-5 (E2) - E61-3 (E)	Power switch off	Below 1 Ω

   Standard resistance (Check for short)

   Tester Connection	Switch Condition	Specified Condition
   E55-33 (THO) or E61-9 (THO) - Body ground and other terminals	Power switch off	10 kΩ or higher
   A74-5 (E2) or E61-3 (E) - Body ground and other terminals	Power switch off	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   8