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Home >> Toyota >> 2014 >> RAV4 EV >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Control System (Diagnostic Codes (Chg_F076 - U0424-537) & Circuit Tests)) (Electric) >> Hybrid Control System >> DTC P0516-769: Battery Temperature Sensor Circuit Low; DTC P0517-770: Battery Temperature Sensor Circuit High [09/2013 - ] >> Procedure

DTC P0516-769: Battery Temperature Sensor Circuit Low; DTC P0517-770: Battery Temperature Sensor Circuit High [09/2013 - ]: 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. Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE [09/2013 - ] .
      GTY380231Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK

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

    NG → CONNECT SECURELY 

    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 / EV / 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 → See step   5 

    C → See step   7 

    A: Go to next step 

  3. READ VALUE USING TECHSTREAM (CHECK FOR OPEN) 
    1. Disconnect connector A59 from the battery thermometer sensor assembly (thermistor assembly).
      GTY380232Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Connect terminals 2 (THB) and 1 (E2) of the vehicle side connector A59 of the battery thermometer sensor assembly (thermistor assembly).
      GTY383777Courtesy 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 / EV / 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 Battery Thermometer Sensor Assembly (Thermistor Assembly))
    7. Turn the power switch off.
    8. Connect the battery thermometer sensor assembly (thermistor assembly) connector.

    NG → See step   4 

    OK → REPLACE BATTERY THERMOMETER SENSOR ASSEMBLY (THERMISTOR ASSEMBLY) 

  4. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - BATTERY THERMOMETER SENSOR ASSEMBLY (THERMISTOR ASSEMBLY)) 
    1. Connect terminals 28 (THB) and 30 (ETHB) of connector E117 of the power management control ECU.
      GTY368275Courtesy 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 / EV / 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 → See step   8 

    OK → REPAIR OR REPLACE HARNESS OR CONNECTOR 

  5. READ VALUE USING TECHSTREAM (CHECK FOR SHORT) 
    1. Disconnect connector A59 from the battery thermometer sensor assembly (thermistor assembly).
      GTY380232Courtesy 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 / EV / 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 battery thermometer sensor assembly (thermistor assembly) connector.

    NG → See step   6 

    OK → REPLACE BATTERY THERMOMETER SENSOR ASSEMBLY (THERMISTOR ASSEMBLY) 

  6. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - BATTERY THERMOMETER SENSOR ASSEMBLY (THERMISTOR ASSEMBLY)) 
    1. Disconnect connector A59 from the battery thermometer sensor assembly (thermistor assembly).
    2. Disconnect connector E117 from the power management control ECU.
      GTY365541Courtesy 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
      E117-28 (THB) - A59-2 (THB) Power switch off Below 1 Ω
      E117-30 (ETHB) - A59-1 (E2) Power switch off Below 1 Ω

      Standard Resistance (Check for Short)

      Tester Connection Switch Condition Specified Condition
      E117-28 (THB) or A59-2 (THB) - Body ground and other terminals Power switch off 10 kΩ or higher
      E117-30 (ETHB) or A59-1 (E2) - Body ground and other terminals Power switch off 10 kΩ or higher
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to Battery Thermometer Sensor Assembly (Thermistor Assembly))
      *b Rear view of wire harness connector
      (to Power Management Control ECU)
    4. Connect the battery thermometer sensor assembly (thermistor assembly) connector.
    5. Connect the power management control ECU connector.

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK → See step   8 

  7. CHECK FOR INTERMITTENT PROBLEMS. Refer to  CHECK FOR INTERMITTENT PROBLEMS [09/2013 - ] 
  8. REPLACE POWER MANAGEMENT CONTROL ECU. Refer to  REMOVAL [09/2013 - ] 
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