HYBRID BATTERY SYSTEM, Diagnostic DTC:P0C7E-123, P0C7F-123, P0C83-123, P0C84-123, P0C8A-123, P0C8B-123

DTC Code DTC Name
P0C7E-123 Hybrid Battery Temperature Sensor "G" Circuit Low
P0C7F-123 Hybrid Battery Temperature Sensor "G" Circuit High
P0C83-123 Hybrid Battery Temperature Sensor "H" Circuit Low
P0C84-123 Hybrid Battery Temperature Sensor "H" Circuit High
P0C8A-123 Hybrid Battery Temperature Sensor "I" Circuit Low
P0C8B-123 Hybrid Battery Temperature Sensor "I" Circuit High

DESCRIPTION


DTC No. INF Code DTC Detection Condition Trouble Area
P0C7E 123 When the temperature of the battery temperature sensor is less than the standard value (open) or higher than the standard value (shorted) (1 trip detection).

  • No. 3 hybrid vehicle supply stack sub-assembly

  • Battery smart unit

  • Wire harness or connector

  • Hybrid battery junction block assembly
P0C7F
P0C83
P0C84
P0C8A
P0C8B

Tech Tips

After confirming that a DTC is output, use the GTS to check "Temp of BATT TB 1 to 12" in the hybrid vehicle control system ECU data list.

Temperature Displayed Malfunction
Below -45°C (-49°F) Open or +B short circuit
95°C (203°F) or more GND short circuit

WIRING DIAGRAM

Refer to the wiring diagram for DTC P0A9C-123 Click here.

Refer to the wiring diagram for DTC P0ABF-123 Click here.

INSPECTION PROCEDURE

CAUTION:


  • Before inspecting the high-voltage system or disconnecting the low voltage connector of the inverter with converter assembly or electric vehicle charger assembly, turn the power switch off. Also, take safety precautions such as wearing insulated gloves and removing the service plug grip to prevent electrical shocks. After removing the service plug grip, put it in your pocket to prevent other technicians from accidentally reconnecting it while you are working on the high-voltage system.

  • After removing the service plug grip, wait for at least 10 minutes before touching any of the high-voltage connectors or terminals. After waiting for 10 minutes, check the voltage at the terminals in the inspection point in the inverter with converter assembly. The voltage should be 0 V before beginning work Click here.

    Tech Tips

    Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly and electric vehicle charger assembly.

  • When disposing of HV batteries and hybrid vehicle supply stack sub-assemblies, make sure to return them through an authorized collection agent who is capable of handling them safely. If they are returned via the manufacturer specified route, they will be returned properly and in a safe manner by an authorized collection agent.

  • Before returning the HV battery, make sure to perform recovery inspection Click here.

  • Before returning the hybrid vehicle supply stack sub-assembly, make sure to perform recovery inspection Click here.

  • Make a note of the output DTCs as some of them may be necessary for recovery inspection of the HV battery and hybrid vehicle supply stack sub-assemblies.

Note

After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work Click here.

Tech Tips

If a short to +B occurs in the battery current sensor, intake air temperature sensor or battery temperature sensor, the following DTCs may be output simultaneously.

DTC No. Relevant Diagnosis
P0ABF-123 Hybrid Battery Pack Current Sensor Circuit
P0C7F-123 Hybrid Battery Temperature Sensor "G" Circuit High
P0C84-123 Hybrid Battery Temperature Sensor "H" Circuit High
P0C8B-123 Hybrid Battery Temperature Sensor "I" Circuit High
P0C90-123 Hybrid Battery Temperature Sensor "J" Circuit High
P0C95-123 Hybrid Battery Temperature Sensor "K" Circuit High
P0C9A-123 Hybrid Battery Temperature Sensor "L" Circuit High
P0AAF-123 Hybrid Battery Pack Air Temperature Sensor "A" Circuit High
P0AB4-123 Hybrid Battery Pack Air Temperature Sensor "B" Circuit High
P33A8-123 Hybrid Battery Pack Air Temperature Sensor "C" Circuit High
P33AD-123 Hybrid Battery Pack Air Temperature Sensor "D" Circuit High
P0A85-123 Hybrid Battery Pack Cooling Fan 1 Control Circuit High

PROCEDURE


  1. CHECK DTC OUTPUT (HYBRID CONTROL)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.

    4. Read output DTCs.

      Result
      Result Proceed to
      P31AB-123, P1A61-123 ,P1A64-123, P1A67-123 is not output A
      P31AB-123, P1A61-123 ,P1A64-123, P1A67-12 is output B

    5. Disconnect the GTS from the DLC3.

    6. Turn the power switch off.


    B

    GO TO DTC CHART (HYBRID BATTERY SYSTEM) Click here

    A

  2. CHECK DTC OUTPUT (HYBRID CONTROL)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.

    4. Read output DTCs Click here.

      Result
      Result Proceed to
      P0AFC-123 is not output. A
      P0AFC-123 is also output. B

    5. Disconnect the GTS from the DLC3.


    B

    GO TO DTC CHART (P0AFC-123) Click here

    A

  3. READ VALUE USING GTS


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Enter the following menus: Powertrain / Hybrid Control / Data List / Temp of Batt TB 1 to 12.

      Tech Tips

      Compare the temperature of the 12 battery temperature sensors to determine the sensor with the malfunction (Temp of Batt TB1 to TB12).


    NEXT

  4. CHECK CONNECTOR CONNECTION CONDITION

    CAUTION:

    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 power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.

    2. Remove the No. 1 hybrid vehicle battery shield panel Click here.

    3. Remove the No. 1 hybrid battery intake duct Click here.

    4. A00412KE02

      Check the connections of the j2 connector of the battery smart unit.

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

    5. Install the No. 1 hybrid battery intake duct.

    6. Install the No. 1 hybrid vehicle battery shield panel.


    NG

    CONNECT SECURELY

    OK

  5. CHECK HV BATTERY (BATTERY TEMPERATURE SENSOR)

    CAUTION:

    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 power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.

    2. Remove the No. 1 hybrid vehicle battery shield panel Click here.

    3. A0041O6E02

      Disconnect the u2 battery smart unit connector.

    4. A0043C3E03
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to Battery Smart Unit)

      Measure the resistance of the circuit for the malfunctioning sensor (battery temperature sensor 0 to 2).

      Tester Connection
      Tester Connection Battery Temperature Sensor No.
      u2-21 (TB6) - u2-9 (GB6) 6
      u2-22 (TB7) - u2-10 (GB7) 7
      u2-13 (TB8) - u2-1 (GB8) 8
      Standard Resistance
      Thermistor Temperature Condition Specified Condition
      0 °C (32 °F) Power switch off 26.7 to 27.8 kΩ
      25 °C (77 °F) Power switch off 9.9 to 10.1 kΩ
      40 °C (104 °F) Power switch off 5.73 to 5.92 kΩ

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      u2-21 (TB6) - Body ground and other terminals Power switch off 10 kΩ or higher
      u2-9 (GB6) - Body ground and other terminals Power switch off 10 kΩ or higher
      u2-22 (TB7) - Body ground and other terminals Power switch off 10 kΩ or higher
      u2-10 (GB7) - Body ground and other terminals Power switch off 10 kΩ or higher
      u2-13 (TB8) - Body ground and other terminals Power switch off 10 kΩ or higher
      u2-1 (GB8) - Body ground and other terminals Power switch off 10 kΩ or higher

    6. Connect the cable to the negative (-) auxiliary battery terminal.

    7. Turn the power switch on (IG).

    8. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Condition Specified Condition
      u2-21 (TB6) - Body ground Power switch on (IG) 1 V or less
      u2-9 (GB6) - Body ground Power switch on (IG) 1 V or less
      u2-22 (TB7) - Body ground Power switch on (IG) 1 V or less
      u2-10 (GB7) - Body ground Power switch on (IG) 1 V or less
      u2-13 (TB8) - Body ground Power switch on (IG) 1 V or less
      u2-1 (GB8) - Body ground Power switch on (IG) 1 V or less

      Note

      Turning the power switch on (IG) with the service grip removed causes other DTCs to be stored. Clear the DTCs after performing this inspection.

    9. Turn the power switch off.

    10. Disconnect the cable from the negative (-) auxiliary battery terminal.

    11. Reconnect the u2 battery smart unit connector.

    12. Install the No. 1 hybrid vehicle battery shield panel.


    NG

    REPLACE NO. 3 HYBRID VEHICLE SUPPLY STACK SUB-ASSEMBLY Click here

    OK

  6. CHECK BATTERY SMART UNIT (VIB VOLTAGE)

    CAUTION:

    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 power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.

    2. Remove the No. 1 hybrid vehicle battery shield panel Click here.

    3. Remove the No. 1 hybrid battery intake duct Click here.

    4. Connect the cable to the negative (-) auxiliary battery terminal.

    5. Turn the power switch on (IG).

    6. A0043P5E05
      Text in Illustration
      *a

      Component with harness connected

      (Battery Smart Unit)

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      c5-2 (VIB) - c5-8 (GIB) Power switch on (IG) 4.6 to 5.4 V

      Note

      Turning the power switch on (IG) with the service grip removed causes other DTCs to be stored. Clear the DTCs after performing this inspection.

    7. Turn the power switch off.

    8. Disconnect the cable from the negative (-) auxiliary battery terminal.

    9. Install the No. 1 hybrid battery intake duct.

    10. Install the No. 1 hybrid vehicle battery shield panel.


    NG

    Click here

    OK

    REPLACE BATTERY SMART UNIT Click here

  7. CHECK HYBRID BATTERY JUNCTION BLOCK ASSEMBLY

    CAUTION:

    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 power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.

    2. Remove the No. 1 hybrid vehicle battery shield panel Click here.

    3. A0041Y1E02

      Disconnect the c6 hybrid battery junction block assembly connector.

    4. Connect the cable to the negative (-) auxiliary battery terminal.

    5. Turn the power switch on (IG).

    6. A0042S6E02
      Text in Illustration
      *a

      Front view of wire harness connector

      (Battery Junction Block Assembly)

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      c6-1 (VIB) - c6-3 (GIB) Power switch on (IG) 4.6 to 5.4 V

      Note

      Turning the power switch on (IG) with the service grip removed causes other DTCs to be stored. Clear the DTCs after performing this inspection.

    7. Turn the power switch off.

    8. Disconnect the cable from the negative (-) auxiliary battery terminal.

    9. Install the No. 1 hybrid vehicle battery shield panel.


    NG

    Click here

    OK

    REPLACE HYBRID BATTERY JUNCTION BLOCK ASSEMBLY Click here

  8. CHECK HARNESS AND CONNECTOR (HYBRID BATTERY JUNCTION BLOCK ASSEMBLY - BATTERY SMART UNIT)

    CAUTION:

    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 power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.

    2. Remove the No. 1 hybrid battery intake duct Click here.

    3. Remove the No. 1 hybrid vehicle battery shield panel Click here.

    4. A00437AE02

      Disconnect only the c5 battery smart unit connector.

    5. A0041Y1E02

      Disconnect the c6 battery current sensor connector from the hybrid battery junction block assembly.

    6. A00434QE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to Battery Smart Unit)
      *b

      Front view of wire harness connector

      (to Hybrid Battery Junction Block Assembly)

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

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      c5-7 (IB1) - c6- 2 (IB1) Power switch off Below 1 Ω
      c5-8 (GIB) - c6- 3 (GIB) Power switch off Below 1 Ω
      c5-1 (IB0) - c6- 4 (IB0) Power switch off Below 1 Ω
      c5-2 (VIB) - c6- 1 (VIB) Power switch off Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      c5-7 (IB1) or c6- 2 (IB1) - Body ground and other terminals Power switch off 10 kΩ or higher
      c5-8 (GIB) or c6- 3 (GIB) - Body ground and other terminals Power switch off 10 kΩ or higher
      c5-1 (IB0) or c6- 4 (IB0) - Body ground and other terminals Power switch off 10 kΩ or higher
      c5-2 (VIB) or c6- 1 (VIB) - Body ground and other terminals Power switch off 10 kΩ or higher

    7. Reconnect the c5 battery smart unit connector.

    8. Reconnect the c6 battery current sensor connector to the hybrid battery junction block assembly.

    9. Install the No. 1 hybrid battery intake duct.

    10. Install the No. 1 hybrid vehicle battery shield panel.


    NG

    REPAIR HARNESS OR CONNECTOR OR REPLACE NO. 3 HYBRID VEHICLE SUPPLY STACK SUB-ASSEMBLY Click here

    OK

    REPLACE BATTERY SMART UNIT Click here