DTC P0712: Transmission Fluid Temperature Sensor "A" Circuit Low Input; DTC P0713: Transmission Fluid Temperature Sensor "A" Circuit High Input: Procedure

1. Warm up the engine.
2. Turn the ignition switch off.
3. Connect the Techstream to the DLC3.
4. Turn the ignition switch to ON.
5. Turn the Techstream on.
6. Enter the following menus: Powertrain / Engine and ECT / Data List.
7. In accordance with the display on the Techstream, read the Data List.

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   A/T Oil Temperature 1	CVT Fluid Temperature Sensor Value/ min.: -40°C (-40°F) max.: 215°C (419°F)	After Stall Test; Approximately 80°C (176°F) Equal to ambient temperature when cold soak	If value is -40°C (-40°F) or 150°C (302°F) or more, CVT fluid temperature sensor circuit is open or short.

   RESULT
   
   

   Result	Proceed to
   Data display is not within Normal Condition range	A
   Data display is within Normal Condition range	B

B → See step   3 

A: Go to next step 

1. Disconnect the ECM connector.
   Fig 1: Identifying ECM Connector Terminals

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   B8-70 (THO1) - B8-71 (ETHO)	Always	79 Ω to 156 kΩ
   B8-70 (THO1) - Body ground	Always	10 kΩ or higher
   B8-71 (ETHO) - Body ground	Always	10 kΩ or higher

   TEXT IN ILLUSTRATION
   
   

   *a	Front view of wire harness connector (to ECM)

   HINT: 

   If the resistance is outside the specified range at either of the CVT fluid temperatures shown in the table below, the driveability of the vehicle may be affected.

   CVT Fluid Temperature	Specified Condition
   10°C (50°F)	5 to 8 kΩ
   25°C (77°F)	2.5 to 4.5 kΩ
   110°C (230°F)	0.22 to 0.28 kΩ

NG → See step   5 

OK: Go to next step 

NEXT: Go to next step 

NEXT → END 

1. Disconnect the transmission wire connector from the transaxle.
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   B14-1 (THO) - B8-70 (THO1)	Always	Below 1 Ω
   B14-6 (E2) - B8-71 (ETHO)	Always	Below 1 Ω
   B8-70 (THO1) - Body ground	Always	10 kΩ or higher
   B8-71 (ETHO) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

NEXT: Go to next step 

NEXT → END