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Home >> Toyota >> 2016 >> Highlander Hybrid Limited >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Control System (2GR-FXE)- Freeze Frame / History Data & Diagnostic Codes >> Hybrid Control System >> DTC P0516-769: Battery Temperature Sensor Circuit Low; DTC P0517-770: Battery Temperature Sensor Circuit High [02/2014 - 11/2016] >> Procedure

DTC P0516-769: Battery Temperature Sensor Circuit Low; DTC P0517-770: Battery Temperature Sensor Circuit High [02/2014 - 11/2016]: Procedure

  1. CHECK CONNECTOR CONNECTION CONDITION (POWER MANAGEMENT CONTROL ECU CONNECTOR) 
    1. Check the connector connections and contact pressure of the relevant terminals for the power management control ECU connectors.
      GTY430312Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE [02/2014 - ] .

      OK

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

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    CONNECT SECURELY 

    Result: 

    OK 

    Go to next step 

  2. READ VALUE USING TECHSTREAM (AUXILIARY BATT TEMPERATURE) 
    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.

      Powertrain > Hybrid Control > Data List 

      Tester Display
      Auxiliary Batt Temperature
    4. Read the Data List.

      Result

      Proceed to
      -40°C (-40°F)
      215°C (419°F)
      Same as actual temperature
    5. Turn the power switch off.

    Result: 

    215°C (419°F) 

    See step  5

    Result: 

    Same as actual temperature 

    CHECK FOR INTERMITTENT PROBLEMS. 

    Refer to CHECK FOR INTERMITTENT PROBLEMS [02/2014 - ] .

    Result: 

    -40°C (-40°F) 

    Go to next step 

  3. READ VALUE USING TECHSTREAM (CHECK FOR OPEN) 
    1. Disconnect the M24 thermistor assembly connector.
      GTY424833Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Connect terminals 2 (THB) and 1 (E2) of the M24 thermistor assembly connector.
      GTY450639Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Thermistor Assembly)
    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.

      Powertrain > Hybrid Control > Data List 

      Tester Display
      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)
    7. Turn the power switch off.
    8. Reconnect the M24 thermistor assembly connector.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE THERMISTOR ASSEMBLY 

    Result: 

    NG 

    Go to next step 

  4. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - THERMISTOR ASSEMBLY) 
    1. Connect terminals 27 (THB) and 26 (ETHB) of the F15 power management control ECU connector.
      GTY439430Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      (Power Management Control ECU)
    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.

      Powertrain > Hybrid Control > Data List 

      Tester Display
      Auxiliary Batt Temperature
    5. 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)
    6. Turn the power switch off.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    NG 

    REPLACE POWER MANAGEMENT CONTROL ECU. 

    Refer to COMPONENTS [02/2014 - 11/2016] .

  5. READ VALUE USING TECHSTREAM (CHECK FOR SHORT) 
    1. Disconnect the M24 thermistor assembly connector.
      GTY424830Courtesy 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.

      Powertrain > Hybrid Control > Data List 

      Tester Display
      Auxiliary Batt Temperature
    5. Read the Data List.

      OK

      Tester Display Condition Specified Condition
      Auxiliary Batt Temperature Power switch on (IG) -40°C (-40°F)
    6. Turn the power switch off.
    7. Reconnect the M24 thermistor assembly connector.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE THERMISTOR ASSEMBLY 

    Result: 

    NG 

    Go to next step 

  6. CHECK HARNESS AND CONNECTOR (THERMISTOR ASSEMBLY - POWER MANAGEMENT CONTROL ECU) 
    1. Disconnect the M24 thermistor assembly connector.
    2. Disconnect the F15 power management control ECU connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance (Check for Open)

      Tester Connection Condition Specified Condition
      M24-2 (THB) - F15-27 (THB) Power switch off Below 1 Ω
      M24-1 (E2) - F15-26 (ETHB) Power switch off Below 1 Ω

      Standard Resistance (Check for Short)

      Tester Connection Condition Specified Condition
      M24-2 (THB) or F15-27 (THB) - Body ground and other terminals Power switch off 10 kΩ or higher
      M24-1 (E2) or F15-26 (ETHB) - Body ground and other terminals Power switch off 10 kΩ or higher
      GTY437094Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Thermistor Assembly)
      *b Rear view of wire harness connector
      (to Power Management Control ECU)
    4. Reconnect the F15 power management control ECU connector.
    5. Reconnect the M24 thermistor assembly connector.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE POWER MANAGEMENT CONTROL ECU. 

    Refer to COMPONENTS [02/2014 - 11/2016] .

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

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