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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 107 (Hybrid Control System (2WD) - Diagnostic Codes (4 Of 7)) >> HYBRID CONTROL SYSTEM (for 2WD) >> DTC P0ABF-11: Hybrid/EV Battery Current Sensor "A" Circuit Short to Ground; DTC P0ABF-15: Hybrid/EV Battery Current Sensor "A" Circuit Short to Auxiliary Battery or Open; DTC P1CBB-12: Hybrid/EV Battery Current Sensor Power Supply Circuit Short to Auxiliary Battery; DTC P1CBB-14: Hybrid/EV Battery Current Sensor Power Supply Circuit Short to Ground or Open [12/2019 - 11/2023] >> Procedure

DTC P0ABF-11: Hybrid/EV Battery Current Sensor "A" Circuit Short to Ground; DTC P0ABF-15: Hybrid/EV Battery Current Sensor "A" Circuit Short to Auxiliary Battery or Open; DTC P1CBB-12: Hybrid/EV Battery Current Sensor Power Supply Circuit Short to Auxiliary Battery; DTC P1CBB-14: Hybrid/EV Battery Current Sensor Power Supply Circuit Short to Ground or Open [12/2019 - 11/2023]: Procedure

WARNING: This page is about a different variant/trim than selected.
  1. CHECK DTC OUTPUT (HYBRID CONTROL) 
    1. Check for DTCs.

      Powertrain > Hybrid Control > Trouble Codes 

      Result

      Result Proceed to
      P0AFC-00, P0AFC-96 or P308A-12 is not output. A
      P0AFC-00, P0AFC-96 or P308A-12 is also output. B
    2. Turn the ignition switch off.

    Result: 

    B 

    GO TO DTC CHART (HYBRID CONTROL SYSTEM) 

    Refer to DIAGNOSTIC TROUBLE CODE CHART [12/2019 - 09/2020] , or refer to DIAGNOSTIC TROUBLE CODE CHART [09/2020 - 10/2021] , or refer to DIAGNOSTIC TROUBLE CODE CHART [10/2021 - 11/2023]

    Result: 

    A 

    See step  2

  2. CHECK BATTERY VOLTAGE SENSOR (IGCT VOLTAGE) 

    Refer to PROCEDURE - Step 2

    Result

    Proceed to
    OK
    NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR (BATTERY VOLTAGE SENSOR POWER SOURCE CIRCUIT) 

    Result: 

    OK 

    See step  3

  3. CHECK HARNESS AND CONNECTOR (BATTERY VOLTAGE SENSOR - HV BATTERY JUNCTION BLOCK ASSEMBLY) 
    WARNING:

    Be sure to wear insulated gloves.

    1. Check that the service plug grip is not installed.
      NOTE:

      After removing the service plug grip, do not turn the ignition switch to ON (READY), unless instructed by the repair information because this may cause a malfunction.

    2. Disconnect the z13 battery current sensor connector.
      GTY839195Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

      Before disconnecting the connector, check that it is not loose or disconnected.

    3. Remove the HV battery junction block assembly.

      Refer to REMOVAL [12/2019 - 10/2022] , or refer to REMOVAL [10/2022 - 11/2023]

    4. Disconnect the z12 battery voltage sensor connector.
      NOTE:

      Before disconnecting the connector, check that it is not loose or disconnected.

      GTY878565Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Measure the resistance according to the value(s) in the tables below.
      GTY892890Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Rear view of wire harness connector
      (to Battery Voltage Sensor)
      *b Front view of wire harness connector
      (to HV Battery Junction Block Assembly (Battery Current Sensor))

      Standard Resistance (Check for Open)

      Tester Connection Condition Specified Condition
      z12-9 (IB0) - z13-4 (IB0) Ignition switch off Below 1 Ω
      z12-22 (GIB) - z13-3 (GIB) Ignition switch off Below 1 Ω
      z12-10 (VIB) - z13-1 (VIB) Ignition switch off Below 1 Ω

      Standard Resistance (Check for Short)

      Tester Connection Condition Specified Condition
      z12-9 (IB0) or z13-4 (IB0) - Body ground and other terminals Ignition switch off 10 kΩ or higher
      z12-22 (GIB) or z13-3 (GIB) - Body ground and other terminals Ignition switch off 10 kΩ or higher
      z12-10 (VIB) or z13-1 (VIB) - Body ground and other terminals Ignition switch off 10 kΩ or higher
    6. Reconnect the z12 battery voltage sensor connector.
    7. Install the HV battery junction block assembly.
    8. Reconnect the z13 battery current sensor connector.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE HYBRID BATTERY THERMISTOR (WIRE HARNESS OR CONNECTOR) 

    Refer to REMOVAL [12/2019 - 10/2022] , or refer to REMOVAL [10/2022 - 11/2023]

    Result: 

    OK 

    See step  4

  4. CHECK BATTERY VOLTAGE SENSOR (VIB VOLTAGE) 
    WARNING:

    Be sure to wear insulated gloves.

    1. Check that the service plug grip is not installed.
      NOTE:

      After removing the service plug grip, do not turn the ignition switch to ON (READY), unless instructed by the repair information because this may cause a malfunction.

    2. Disconnect the z13 battery current sensor connector.
      GTY839195Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

      Before disconnecting the connector, check that it is not loose or disconnected.

    3. Remove the HV battery junction block assembly.

      Refer to REMOVAL [12/2019 - 10/2022] , or refer to REMOVAL [10/2022 - 11/2023]

    4. Connect the z13 battery current sensor connector.
    5. Connect the cable to the negative (-) auxiliary battery terminal.
    6. Turn the ignition switch to ON.
    7. Measure the voltage according to the value(s) in the table below.
      GTY863222Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      (Battery Voltage Sensor)

      Standard Voltage

      Tester Connection Condition Specified Condition
      z12-10 (VIB) - z12-22 (GIB) Ignition switch ON 4.6 to 5.4 V
      NOTE:

      Turning the ignition switch to ON with the service plug grip removed causes other DTCs to be stored. Clear the DTCs after performing this inspection.

    8. Turn the ignition switch off.
    9. Disconnect the cable from the negative (-) auxiliary battery terminal.
    10. Install the HV battery junction block assembly.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  9

    Result: 

    OK 

    See step  5

  5. CHECK BATTERY VOLTAGE SENSOR (GIB - GND) 
    WARNING:

    Be sure to wear insulated gloves.

    1. Check that the service plug grip is not installed.
      NOTE:

      After removing the service plug grip, do not turn the ignition switch to ON (READY), unless instructed by the repair information because this may cause a malfunction.

    2. Remove the HV battery junction block assembly.

      Refer to REMOVAL [12/2019 - 10/2022] , or refer to REMOVAL [10/2022 - 11/2023]

    3. Disconnect the z12 and y1 battery voltage sensor connectors.
      NOTE:

      Before disconnecting the connector, check that it is not loose or disconnected.

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

      Standard Resistance

      Tester Connection Condition Specified Condition
      z12-22 (GIB) - y1-7 (GND) Ignition switch off Below 1 Ω
      GTY887130Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Battery Voltage Sensor)
    5. Reconnect the z12 and y1 battery voltage sensor connectors.
    6. Install the HV battery junction block assembly.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE BATTERY VOLTAGE SENSOR 

    Refer to REMOVAL [12/2019 - 10/2022] , or refer to REMOVAL [10/2022 - 11/2023]

    Result: 

    OK 

    See step  6

  6. CHECK BATTERY VOLTAGE SENSOR (BATTERY CURRENT SENSOR OUTPUT VOLTAGE) 
    WARNING:

    Be sure to wear insulated gloves.

    1. Check that the service plug grip is not installed.
      NOTE:

      After removing the service plug grip, do not turn the ignition switch to ON (READY), unless instructed by the repair information because this may cause a malfunction.

    2. Disconnect the z13 battery current sensor connector.
      GTY839195Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

      Before disconnecting the connector, check that it is not loose or disconnected.

    3. Remove the HV battery junction block assembly.

      Refer to REMOVAL [12/2019 - 10/2022] , or refer to REMOVAL [10/2022 - 11/2023]

    4. Connect the z13 battery current sensor connector.
    5. Connect the cable to the negative (-) auxiliary battery terminal.
    6. Turn the ignition switch to ON.
    7. Measure the voltage according to the value(s) in the table below.
      GTY863223Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      (Battery Voltage Sensor)

      Standard Voltage

      Tester Connection Condition Specified Condition
      z12-9 (IB0) - z12-22 (GIB) Ignition switch ON 2.46 to 2.54 V
      NOTE:

      Turning the ignition switch to ON with the service plug grip removed causes other DTCs to be stored. Clear the DTCs after performing this inspection.

      Result

      Result Proceed to
      OK A
      NG (Voltage is outside the specified value and 0.4 V or more.) B
      NG (Voltage is outside the specified value and less than 0.4 V.) C
    8. Turn the ignition switch off.
    9. Disconnect the cable from the negative (-) auxiliary battery terminal.
    10. Install the HV battery junction block assembly.

    Result: 

    A 

    REPLACE BATTERY VOLTAGE SENSOR 

    Refer to REMOVAL [12/2019 - 10/2022] , or refer to REMOVAL [10/2022 - 11/2023]

    Result: 

    C 

    See step  8

    Result: 

    B 

    See step  7

  7. CHECK BATTERY VOLTAGE SENSOR (VIB - IB0) 
    WARNING:

    Be sure to wear insulated gloves.

    1. Check that the service plug grip is not installed.
      NOTE:

      After removing the service plug grip, do not turn the ignition switch to ON (READY), unless instructed by the repair information because this may cause a malfunction.

    2. Remove the HV battery junction block assembly.

      Refer to REMOVAL [12/2019 - 10/2022] , or refer to REMOVAL [10/2022 - 11/2023]

    3. Disconnect the z12 battery voltage sensor connector.
      NOTE:

      Before disconnecting the connector, check that it is not loose or disconnected.

    4. Measure the resistance according to the value(s) in the tables below.
      GTY921800Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Battery Voltage Sensor)
      Tester Connection Condition
      z12-10 (VIB) - z12-9 (IB0) Ignition switch off

      Result

      Result Proceed to
      Below 1 Ω A
      Other than above B
    5. Reconnect the z12 battery voltage sensor connector.
    6. Install the HV battery junction block assembly.

    Result: 

    A 

    REPLACE BATTERY VOLTAGE SENSOR 

    Refer to REMOVAL [12/2019 - 10/2022] , or refer to REMOVAL [10/2022 - 11/2023]

    Result: 

    B 

    REPLACE HV BATTERY JUNCTION BLOCK ASSEMBLY 

    Refer to REMOVAL [12/2019 - 10/2022] , or refer to REMOVAL [10/2022 - 11/2023]

  8. CHECK BATTERY VOLTAGE SENSOR (BATTERY CURRENT SENSOR OUTPUT VOLTAGE) 
    WARNING:

    Be sure to wear insulated gloves.

    1. Check that the service plug grip is not installed.
      NOTE:

      After removing the service plug grip, do not turn the ignition switch to ON (READY), unless instructed by the repair information because this may cause a malfunction.

    2. Disconnect the z13 battery current sensor connector.
      GTY839195Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

      Before disconnecting the connector, check that it is not loose or disconnected.

    3. Remove the HV battery junction block assembly.

      Refer to REMOVAL [12/2019 - 10/2022] , or refer to REMOVAL [10/2022 - 11/2023]

    4. Connect the cable to the negative (-) auxiliary battery terminal.
    5. Turn the ignition switch to ON.
    6. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Condition Specified Condition
      z12-9 (IB0) - z12-22 (GIB) Ignition switch ON 4.6 to 5.4 V
      GTY863223Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      (Battery Voltage Sensor)
      NOTE:

      Turning the ignition switch to ON with the service plug grip removed causes other DTCs to be stored. Clear the DTCs after performing this inspection.

    7. Turn the ignition switch off.
    8. Disconnect the cable from the negative (-) auxiliary battery terminal.
    9. Install the HV battery junction block assembly.
    10. Reconnect the z13 battery current sensor connector.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE HV BATTERY JUNCTION BLOCK ASSEMBLY 

    Refer to REMOVAL [12/2019 - 10/2022] , or refer to REMOVAL [10/2022 - 11/2023]

    Result: 

    NG 

    REPLACE BATTERY VOLTAGE SENSOR 

    Refer to REMOVAL [12/2019 - 10/2022] , or refer to REMOVAL [10/2022 - 11/2023]

  9. CHECK BATTERY VOLTAGE SENSOR (VIB VOLTAGE) 
    WARNING:

    Be sure to wear insulated gloves.

    1. Check that the service plug grip is not installed.
      NOTE:

      After removing the service plug grip, do not turn the ignition switch to ON (READY), unless instructed by the repair information because this may cause a malfunction.

    2. Disconnect the z13 battery current sensor connector.
      GTY839195Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

      Before disconnecting the connector, check that it is not loose or disconnected.

    3. Remove the HV battery junction block assembly.

      Refer to REMOVAL [12/2019 - 10/2022] , or refer to REMOVAL [10/2022 - 11/2023]

    4. Connect the cable to the negative (-) auxiliary battery terminal.
    5. Turn the ignition switch to ON.
    6. Measure the voltage according to the value(s) in the table below.
      GTY863222Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      (Battery Voltage Sensor)

      Standard Voltage

      Tester Connection Condition Specified Condition
      z12-10 (VIB) - z12-22 (GIB) Ignition switch ON 4.6 to 5.4 V
      NOTE:

      Turning the ignition switch to ON with the service plug grip removed causes other DTCs to be stored. Clear the DTCs after performing this inspection.

    7. Turn the ignition switch off.
    8. Disconnect the cable from the negative (-) auxiliary battery terminal.
    9. Install the HV battery junction block assembly.
    10. Reconnect the z13 battery current sensor connector.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE HV BATTERY JUNCTION BLOCK ASSEMBLY 

    Refer to REMOVAL [12/2019 - 10/2022] , or refer to REMOVAL [10/2022 - 11/2023]

    Result: 

    NG 

    REPLACE BATTERY VOLTAGE SENSOR 

    Refer to REMOVAL [12/2019 - 10/2022] , or refer to REMOVAL [10/2022 - 11/2023]

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