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

1. Disconnect the transmission wire connector from the transaxle.
   Fig 1: Inspecting B47 Transmission Wire Connector (ATF Temperature Sensor)

   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
   1 (THO) - 6 (E2)	Always	79 Ω to 156 kΩ
   1 (THO) - Body ground	Always	10 kΩ or higher
   6 (E2) - Body ground	Always	↑

   HINT: 

   If the resistance is out of the specified range with either the ATF temperature shown in the table below, the driveability of the vehicle may decrease.

   ATF 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   3 

OK: Go to next step 

1. Connect the transmission wire connector to the transaxle.
   Fig 2: Checking Harness And Connector (Transmission Wire - ECM)

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

   Standard resistance

   Tester Connection	Condition	Specified Condition
   B29-70 (THO1) - B29-71 (ETHO)	Always	79 Ω to 156 kΩ

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

   Standard resistance (Check for short)

   Tester Connection	Condition	Specified Condition
   B29-70 (THO1) - Body ground	Always	10 kΩ or higher
   B29-71 (ETHO) - Body ground	Always	↑

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   4