DTC P0516-769: Battery Temperature Sensor Circuit Low; DTC P0517-770: Battery Temperature Sensor Circuit High [08/2015 - ]: Procedure

NG → CONNECT SECURELY 

OK: Go to next step 

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Enter the following menus: Powertrain / Hybrid Control / Data List / Auxiliary Batt Temperature.
4. Read the Data List.

   Result

   Result	Proceed to
   -40°C (-40°F)	A
   215°C (419°F)	B
   Same as actual temperature	C

5. Turn the power switch off.

B → Refer to   5 

C → Refer to   7 

A: Go to next step 

1. Disconnect connector S17 from the thermistor assembly.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

2. Connect terminals 2 (THB) and 1 (E2) of vehicle side connector S17 of the thermistor assembly.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

3. Connect the Techstream to the DLC3.
4. Turn the power switch on (IG).
5. Enter the following menus: Powertrain / Hybrid Control / Data List / Auxiliary Batt Temperature.
6. Read the Data List.

   OK

   Tester Display	Condition	Specified Condition
   Auxiliary Batt Temperature	Terminals THB and E2 connected. Power switch on (IG)	215°C (419°F)

   TEXT IN ILLUSTRATION
   
   

   *a	Front view of wire harness connector (to Thermistor Assembly)

7. Turn the power switch off.
8. Connect the thermistor assembly connector.

NG → Refer to   4 

OK → REPLACE THERMISTOR ASSEMBLY 

1. Connect terminals 28 (THB) and 30 (ETHB) of connector L5 of the power management control ECU.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

2. Connect the Techstream to the DLC3.
3. Turn the power switch on (IG).
4. Enter the following menus: Powertrain / Hybrid Control / Data List / Auxiliary Batt Temperature.
5. Read the Data List.

   OK

   Tester Display	Condition	Specified Condition
   Auxiliary Batt Temperature	Terminals THB and ETHB connected. Power switch on (IG)	215°C (419°F)

   TEXT IN ILLUSTRATION
   
   

   *a	Component with harness connected (Power Management Control ECU)

6. Turn the power switch off.

NG → Refer to   8 

OK → REPAIR OR REPLACE HARNESS OR CONNECTOR 

1. Disconnect connector S17 from the thermistor assembly.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

2. Connect the Techstream to the DLC3.
3. Turn the power switch on (IG).
4. Enter the following menus: Powertrain / Hybrid Control / Data List / Auxiliary Batt Temperature.
5. Read the Data List.

   OK

   Tester Display	Switch Condition	Specified Condition
   Auxiliary Batt Temperature	Power switch on (IG)	-40°C (-40°F)

6. Turn the power switch off.
7. Connect the thermistor assembly connector.

NG → Refer to   6 

OK → REPLACE THERMISTOR ASSEMBLY 

1. Disconnect connector S17 from the thermistor assembly.
2. Disconnect connector L5 from the power management control ECU.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

   Standard Resistance (Check for Open)

   Tester Connection	Switch Condition	Specified Condition
   L5-28 (THB) - S17-2 (THB)	Power switch off	Below 1 Ω
   L5-30 (ETHB) - S17-1 (E2)	Power switch off	Below 1 Ω

   Standard Resistance (Check for Short)

   Tester Connection	Switch Condition	Specified Condition
   L5-28 (THB) or S17-2 (THB) - Body ground and other terminals	Power switch off	10 kΩ or higher
   L5-30 (ETHB) or S17-1 (E2) - Body ground and other terminals	Power switch off	10 kΩ or higher

   TEXT IN ILLUSTRATION
   
   

   *a	Front view of wire harness connector (to Thermistor Assembly)
   *b	Rear view of wire harness connector (to Power Management Control ECU)

4. Connect the thermistor assembly connector.
5. Connect the power management control ECU connector.

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → Refer to   8