HYBRID BATTERY SYSTEM, Diagnostic DTC:P0A95-123

DTC Code DTC Name
P0A95-123 High Voltage Fuse

DESCRIPTION

DTC No. INF Code DTC Detection Condition Trouble Area
P0A95 123 Voltage between VA28 and GA2 terminals is below the standard despite the interlock switch being engaged (1 trip detection)

  • Service plug grip

  • HV battery

  • Hybrid battery junction block assembly

  • Inverter with converter assembly

WIRING DIAGRAM

Refer to the wiring diagram for DTC P0AE6-225 Click here.

A005DQAE16
*a Service Plug Grip
*b HV Battery
*c Battery Smart Unit
A005DQAE17
*a Service Plug Grip
*b HV Battery
*c Battery Smart Unit

CAUTION / NOTICE / HINT

CAUTION:


  • Before inspecting the high-voltage system or disconnecting the low voltage connector of the inverter with converter assembly, 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.

  • When disposing of an HV battery, make sure to return it through an authorized collection agent who is capable of handling it safely. If the HV battery is returned via the manufacturer specified route, it will be returned properly and in a safe manner by an authorized collection agent.

  • Before returning the HV battery, make sure to perform a 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.

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.

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 Click here.

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

    5. Turn the power switch off.


    B

    GO TO DTC CHART (P0AFC-123) Click here

    A

  2. CHECK HV BATTERY

    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. 2 hybrid battery shield sub-assembly Click here.

    3. A005CTQE02

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      k3-1 (+) - h3-1 (-) Power switch off 10 kΩ or higher

    4. Install the No. 2 hybrid battery shield sub-assembly.


    NG

    CHECK HYBRID BATTERY JUNCTION BLOCK ASSEMBLY (SMRP, SMRB, SMRG) Click here

    OK

  3. CHECK INVERTER WITH CONVERTER 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. 2 hybrid battery shield sub-assembly Click here.

    3. A005CRLE02

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      T6-1 (CBI) - T5-1 (CEI) Power switch off 10 kΩ or higher

    4. Install the No. 2 hybrid battery shield sub-assembly.


    NG

    CHECK HYBRID BATTERY JUNCTION BLOCK ASSEMBLY Click here

    OK

  4. INSPECT SERVICE PLUG GRIP


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

    2. Remove the service plug grip Click here.

    3. A005EWB

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

      Standard Resistance
      Tester Connection Condition Standard Resistance
      Service plug grip Always Below 1 Ω

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


    OK

    REPLACE HV BATTERY Click here

    NG

    REPLACE SERVICE PLUG GRIP Click here

  5. CHECK HYBRID BATTERY JUNCTION BLOCK ASSEMBLY (SMRP, SMRB, SMRG)

    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. 2 hybrid battery shield sub-assembly Click here.

    3. A005DCFE02

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

      Standard Resistance (SMRB)
      Tester Connection Condition Specified Condition
      T6-1 (CBI) - k3-1 (+) Power switch off 10 kΩ or higher

      Tech Tips

      If a system main relay is stuck closed, inspect the hybrid battery junction block assembly without removing it from the vehicle, in order to keep the relay closed.

    4. A005AU7E02

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

      Standard Resistance (SMRG)
      Tester Connection Condition Specified Condition
      T5-1 (CEI) - h3-1 (-) Power switch off 10 kΩ or higher

      Tech Tips


      • If a system main relay is stuck closed, inspect the hybrid battery junction block assembly without removing it from the vehicle, in order to keep the relay closed.

      • If the resistance is between 28.5 and 31.5 Ω, it can be determined that SMRP is stuck closed.

    5. Install the No. 2 hybrid battery shield sub-assembly.


    NG

    REPLACE HYBRID BATTERY JUNCTION BLOCK ASSEMBLY Click here

    OK

  6. 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. 2 hybrid battery shield sub-assembly Click here.

    3. A005CTQE02

      Disconnect the k3 and h3 hybrid battery junction block assembly connectors.

    4. A005DVEE02

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      k3-1 (+) - h3-1 (-) Power switch off 10 kΩ or higher

    5. Reconnect the k3 and h3 hybrid battery junction block assembly connectors.

    6. Install the No. 2 hybrid battery shield sub-assembly.


    OK

    REPLACE HV BATTERY Click here

    NG

  7. REPLACE HYBRID BATTERY JUNCTION BLOCK ASSEMBLY

    Click here


    NEXT

    REPLACE SERVICE PLUG GRIP Click here

  8. REPLACE HYBRID BATTERY JUNCTION BLOCK ASSEMBLY

    Click here


    NEXT

  9. CHECK INVERTER WITH CONVERTER 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. 2 hybrid battery shield sub-assembly Click here.

    3. A005DGS

      Disconnect the frame wire.

    4. A005EOXE02

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      T6-1 (CBI) - T5-1 (CEI) Power switch off 10 kΩ or higher

    5. Connect the frame wire.

    6. Install the No. 2 hybrid battery shield sub-assembly.


    OK

    REPLACE SERVICE PLUG GRIP Click here

    NG

  10. REPLACE INVERTER WITH CONVERTER ASSEMBLY

    Click here


    NEXT

    REPLACE SERVICE PLUG GRIP Click here

  11. 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. 2 hybrid battery shield sub-assembly Click here.

    3. A005DGS

      Disconnect the frame wire.

    4. A005EI4

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      T6-1 (CBI) - T5-1 (CEI) Power switch off 10 kΩ or higher

    5. Connect the frame wire.

    6. Install the No. 2 hybrid battery shield sub-assembly.


    NG

    REPLACE HYBRID BATTERY JUNCTION BLOCK ASSEMBLY Click here

    OK

  12. REPLACE INVERTER WITH CONVERTER ASSEMBLY

    Click here


    NEXT

    REPLACE SERVICE PLUG GRIP Click here

  13. REPLACE HYBRID BATTERY JUNCTION BLOCK ASSEMBLY

    Click here


    NEXT

    REPLACE SERVICE PLUG GRIP Click here