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Home >> Lexus >> 2019 >> ES 350 Luxury >> Repair and Diagnosis >> External Pages >> Different car >> Section 138 (Hybrid Battery System (For Lithium-Ion Battery) - Diagnostic Codes (2 Of 3)) >> HYBRID BATTERY SYSTEM (for LITHIUM-ION BATTERY) >> DTC P0E2D-00: Hybrid/EV Battery Energy Control Module Hybrid/EV Battery Monitor Performance [08/2020 - ] >> Procedure

DTC P0E2D-00: Hybrid/EV Battery Energy Control Module Hybrid/EV Battery Monitor Performance [08/2020 - ]: Procedure

WARNING: This page is about a different car, the 2024 Lexus ES 300h, 2023 Lexus ES 300h, 2022 Lexus ES 300h, and 2021 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK DTC OUTPUT (HV BATTERY, HYBRID CONTROL) 
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Enter the following menus: Powertrain / HV Battery and Hybrid Control / Trouble Codes.
    4. Check for DTCs.

      Powertrain > HV Battery > Trouble Codes 

      Powertrain > Hybrid Control > Trouble Codes 

      Result

      Result Proceed to
      "P0E2D-00" only is output, or DTCs except the ones in the table below are also output. A
      DTCs of hybrid battery system in the table below are output. B
      DTCs of hybrid control system in the table below are output. C
      System Relevant DTC
      Hybrid battery system P060A-47 Hybrid/EV Battery Energy Control Module Monitoring Processor Watchdog / Safety MCU Failure
      P060B-49 Hybrid/EV Battery Energy Control Module A/D Processing Internal Electronic Failure
      P0606-87 Hybrid/EV Battery Energy Control Module Processor to Monitoring Processor Missing Message
      P1A00-1C Hybrid Battery Stack 2 Cell Voltage Detection Voltage Out of Range
      P1AC4-13 Hybrid/EV Battery Stack 1 Current Interrupt Device Circuit Open
      P1AC4-9E Hybrid/EV Battery Stack 1 Current Interrupt Device Stuck On
      P1AC5-13 Hybrid/EV Battery Stack 2 Current Interrupt Device Circuit Open
      P1AC5-9E Hybrid/EV Battery Stack 2 Current Interrupt Device Stuck On
      P301A-1C Hybrid Battery Stack 1 Cell Voltage Detection Voltage Out of Range
      Hybrid control system P0A1F-94 Hybrid/EV Battery Energy Control Module Unexpected Operation
      P0AA6-49 *1 Hybrid/EV Battery Voltage System Isolation Internal Electronic Failure

      *1: If area specific insulation resistance malfunction DTCs (P1C7C-49, P1C7D-49, P1C7E-49 or P1C7F-49) are output, perform repairs according to each DTC.

    5. Turn the power switch off.

    Result: 

    B 

    GO TO DTC CHART (HYBRID BATTERY SYSTEM). Refer to  DIAGNOSTIC TROUBLE CODE CHART [08/2020 - ] 

    Result: 

    C 

    GO TO DTC CHART (HYBRID CONTROL SYSTEM). Refer to  DIAGNOSTIC TROUBLE CODE CHART [08/2020 - 08/2021]  , or refer to  DIAGNOSTIC TROUBLE CODE CHART [08/2021 - ] 

    Result: 

    A 

    See step  2

  2. CHECK CONNECTOR CONNECTION CONDITION (BATTERY ECU ASSEMBLY CONNECTOR) 
    WARNING:

    Be sure to wear insulated gloves and protective goggles.

    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 appropriate service information because this may cause a malfunction.

    2. Remove the No. 1 HV battery hose.

      Refer to PROCEDURE - Step 21 [08/2020 - 08/2021] , or refer to PROCEDURE - Step 21 [08/2021 - 09/2022] , or refer to PROCEDURE - Step 21 [09/2022 - ]

    3. Check the connector connections and contact pressure of the relevant terminals for the battery ECU assembly.

      Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE [06/2018 - ]

      GTY946855Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK

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

      Result

      Result Proceed to
      OK A
      Not connected securely The terminals are not damaged or corroded B
      Either connector y13 was not connected securely The terminals are damaged or corroded C
      Either connector y15 was not connected securely The terminals are damaged or corroded D
    4. Install the No. 1 HV battery hose.

    Result: 

    B 

    CONNECT SECURELY 

    Result: 

    C 

    REPLACE NO. 2 HV SUPPLY STACK SUB-ASSEMBLY. Refer to  REMOVAL [08/2020 - 08/2021]  , or refer to  REMOVAL [08/2021 - 09/2022]  , or refer to  REMOVAL [09/2022 - ] 

    Result: 

    D 

    REPLACE NO. 1 HV SUPPLY STACK SUB-ASSEMBLY. Refer to  REMOVAL [08/2020 - 08/2021]  , or refer to  REMOVAL [08/2021 - 09/2022]  , or refer to  REMOVAL [09/2022 - ] 

    Result: 

    A 

    See step  3

  3. CHECK FREEZE FRAME DATA (HV BATTERY) 
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Enter the following menus: Powertrain / HV battery / Trouble Codes.
    4. Read the value of freeze frame data items "Hybrid/EV Battery Cell 1 Voltage" through "Hybrid/EV Battery Cell 70 Voltage" for DTC P0E2D-00 and make a note if the value of any is 1.6 V or less.

      Powertrain > HV Battery > Trouble Codes 

      Result

      Result Proceed to
      The value of any of the freeze frame data items "Hybrid/EV Battery Cell 1 Voltage" through "Hybrid/EV Battery Cell 35 Voltage" is 1.6 V or less. A
      The value of any of the freeze frame data items "Hybrid/EV Battery Cell 36 Voltage" through "Hybrid/EV Battery Cell 70 Voltage" is 1.6 V or less. B
      Other than above C
    5. Turn the power switch off.

    Result: 

    B 

    See step  7

    Result: 

    C 

    See step  10

    Result: 

    A 

    See step  4

  4. CHECK NO. 1 HV SUPPLY STACK SUB-ASSEMBLY (HV BATTERY CELL VOLTAGE) 
    WARNING:
    • Be sure to wear insulated gloves and protective goggles.
    • Disconnect only the connector corresponding to the HV battery cell to be checked. Do not disconnect the other connectors.
    NOTE:

    Make sure to use tester probes with a diameter of approximately 0.5 mm (0.0197 in.) when measuring the voltage of each HV battery cell.

    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 appropriate service information because this may cause a malfunction.

    2. Remove the No. 1 HV battery hose.

      Refer to PROCEDURE - Step 21 [08/2020 - 08/2021] , or refer to PROCEDURE - Step 21 [08/2021 - 09/2022] , or refer to PROCEDURE - Step 21 [09/2022 - ]

    3. Disconnect the y15 battery ECU assembly connector.
      GTY946901Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Measure the voltage according to the value(s) in the table below.

      HINT: 

      Measure the voltage of the HV battery cells whose value in the freeze frame data was 1.6 V or less only.

      GTY946955Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Battery ECU Assembly)      		 - -
      HV Battery Cell Tester Connection Condition
      1 y15-1 (GA0) - y15-13 (VA1) Always
      2 y15-13 (VA1) - y15-25 (VA2) Always
      3 y15-25 (VA2) - y15-2 (VA3) Always
      4 y15-2 (VA3) - y15-14 (VA4) Always
      5 y15-14 (VA4) - y15-26 (VA5) Always
      6 y15-26 (VA5) - y15-3 (VA6) Always
      7 y15-3 (VA6) - y15-15 (VA7) Always
      8 y15-15 (VA7) - y15-27 (VA8) Always
      9 y15-27 (VA8) - y15-4 (VA9) Always
      10 y15-4 (VA9) - y15-16 (VA10) Always
      11 y15-16 (VA10) - y15-28 (VA11) Always
      12 y15-28 (VA11) - y15-5 (VA12) Always
      13 y15-5 (VA12) - y15-17 (VA13) Always
      14 y15-17 (VA13) - y15-29 (VA14) Always
      15 y15-29 (VA14) - y15-6 (VA15) Always
      16 y15-6 (VA15) - y15-18 (VA16) Always
      17 y15-18 (VA16) - y15-30(VA17) Always
      18 y15-30(VA17) - y15-7 (VA18) Always
      19 y15-7 (VA18) - y15-19 (VA19) Always
      20 y15-19 (VA19) - y15-31 (VA20) Always
      21 y15-31 (VA20) - y15-8 (VA21) Always
      22 y15-8 (VA21) - y15-20(VA22) Always
      23 y15-20(VA22) - y15-32 (VA23) Always
      24 y15-32 (VA23) - y15-9 (VA24) Always
      25 y15-9 (VA24) - y15-21 (VA25) Always
      26 y15-21 (VA25) - y15-33 (VA26) Always
      27 y15-33 (VA26) - y15-10(VA27) Always
      28 y15-10(VA27) - y15-22 (VA28) Always
      29 y15-22 (VA28) - y15-34 (VA29) Always
      30 y15-34 (VA29) - y15-11 (VA30) Always
      31 y15-11 (VA30) - y15-23 (VA31) Always
      32 y15-23 (VA31) - y15-35 (VA32) Always
      33 y15-35 (VA32) - y15-12 (VA33) Always
      34 y15-12 (VA33) - y15-24 (VA34) Always
      35 y15-24 (VA34) - y15-36 (VA35) Always
      WARNING:

      Make sure not to cross the electrodes of an electrical tester measurement terminals.

      NOTE:

      Make sure to check the polarity of each terminal (positive (+) or negative (-)) before connecting a tester.

      Result

      Result Proceed to
      The voltage between the terminals is 1.6 V or less. A
      Other than above B
    5. Reconnect the y15 battery ECU assembly connector.
    6. Install the No. 1 HV battery hose.

    Result: 

    B 

    REPLACE BATTERY ECU ASSEMBLY. Refer to  REMOVAL [08/2020 - 08/2021]  , or refer to  REMOVAL [08/2021 - 09/2022]  , or refer to  REMOVAL [09/2022 - ] 

    Result: 

    A 

    See step  5

  5. CHECK BATTERY ECU ASSEMBLY (GA0 - VA35) 
    NOTE:

    Make sure to use tester probes with a diameter of approximately 0.5 mm (0.0197 in.) when measuring the resistance.

    1. Remove the battery ECU assembly.

      Refer to REMOVAL [08/2020 - 08/2021] , or refer to REMOVAL [08/2021 - 09/2022] , or refer to REMOVAL [09/2022 - ]

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

      HINT: 

      Only inspect the terminals of the battery ECU assembly which correspond to the HV battery cells which measured 1.6 V or less in the previous step.

      GTY946945Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Battery ECU Assembly)      		 - -

      Standard Resistance

      HV Battery Cell Tester Connection
      (Tester Probe Polarity)      		 Condition Specified Condition
      1 y15-1 (GA0) (-) - y15-13 (VA1) (+) Always 50 kΩ or more
      2 y15-13 (VA1) (-) - y15-25 (VA2) (+) Always 50 kΩ or more
      3 y15-25 (VA2) (-) - y15-2 (VA3) (+) Always 50 kΩ or more
      4 y15-2 (VA3) (-) - y15-14 (VA4) (+) Always 50 kΩ or more
      5 y15-14 (VA4) (-) - y15-26 (VA5) (+) Always 50 kΩ or more
      6 y15-26 (VA5) (-) - y15-3 (VA6) (+) Always 50 kΩ or more
      7 y15-3 (VA6) (-) - y15-15 (VA7) (+) Always 50 kΩ or more
      8 y15-15 (VA7) (-) - y15-27 (VA8) (+) Always 50 kΩ or more
      9 y15-27 (VA8) (-) - y15-4 (VA9) (+) Always 50 kΩ or more
      10 y15-4 (VA9) (-) - y15-16 (VA10) (+) Always 50 kΩ or more
      11 y15-16 (VA10) (-) - y15-28 (VA11) (+) Always 50 kΩ or more
      12 y15-28 (VA11) (-) - y15-5 (VA12) (+) Always 50 kΩ or more
      13 y15-5 (VA12) (-) - y15-17 (VA13) (+) Always 50 kΩ or more
      14 y15-17 (VA13) (-) - y15-29 (VA14) (+) Always 50 kΩ or more
      15 y15-29 (VA14) (-) - y15-6 (VA15) (+) Always 50 kΩ or more
      16 y15-6 (VA15) (-) - y15-18 (VA16) (+) Always 50 kΩ or more
      17 y15-18 (VA16) (-) - y15-30 (VA17) (+) Always 50 kΩ or more
      18 y15-30 (VA17) (-) - y15-7 (VA18) (+) Always 50 kΩ or more
      19 y15-7 (VA18) (-) - y15-19 (VA19) (+) Always 50 kΩ or more
      20 y15-19 (VA19) (-) - y15-31 (VA20) (+) Always 50 kΩ or more
      21 y15-31 (VA20) (-) - y15-8 (VA21) (+) Always 50 kΩ or more
      22 y15-8 (VA21) (-) - y15-20 (VA22) (+) Always 50 kΩ or more
      23 y15-20 (VA22) (-) - y15-32 (VA23) (+) Always 50 kΩ or more
      24 y15-32 (VA23) (-) - y15-9 (VA24) (+) Always 50 kΩ or more
      25 y15-9 (VA24) (-) - y15-21 (VA25) (+) Always 50 kΩ or more
      26 y15-21 (VA25) (-) - y15-33 (VA26) (+) Always 50 kΩ or more
      27 y15-33 (VA26) (-) - y15-10 (VA27) (+) Always 50 kΩ or more
      28 y15-10 (VA27) (-) - y15-22 (VA28) (+) Always 50 kΩ or more
      29 y15-22 (VA28) (-) - y15-34 (VA29) (+) Always 50 kΩ or more
      30 y15-34 (VA29) (-) - y15-11 (VA30) (+) Always 50 kΩ or more
      31 y15-11 (VA30) (-) - y15-23 (VA31) (+) Always 50 kΩ or more
      32 y15-23 (VA31) (-) - y15-35 (VA32) (+) Always 50 kΩ or more
      33 y15-35 (VA32) (-) - y15-12 (VA33) (+) Always 50 kΩ or more
      34 y15-12 (VA33) (-) - y15-24 (VA34) (+) Always 50 kΩ or more
      35 y15-24 (VA34) (-) - y15-36 (VA35) (+) Always 50 kΩ or more
      NOTE:
      • Make sure to check the polarity of each terminal (positive (+) or negative (-)) before connecting a tester.
      • Read the resistance after the value has stabilized.
      • In order to avoid damaging the terminals of the battery ECU assembly, make sure to use tester probes with a diameter of approximately 0.5 mm (0.0197 in.) when measuring the resistance of the battery ECU assembly.
    3. Install the battery ECU assembly.

      Result

      Result Proceed to
      The voltage between the terminals is 50 kΩ or more. A
      Other than above B

    Result: 

    A 

    REPLACE NO. 1 HV SUPPLY STACK SUB-ASSEMBLY. Refer to  REMOVAL [08/2020 - 08/2021]  , or refer to  REMOVAL [08/2021 - 09/2022]  , or refer to  REMOVAL [09/2022 - ] 

    Result: 

    B 

    See step  6

  6. REPLACE NO. 1 HV SUPPLY STACK SUB-ASSEMBLY 

    Refer to REMOVAL [08/2020 - 08/2021] , or refer to REMOVAL [08/2021 - 09/2022] , or refer to REMOVAL [09/2022 - ]

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    REPLACE BATTERY ECU ASSEMBLY. Refer to  REMOVAL [08/2020 - 08/2021]  , or refer to  REMOVAL [08/2021 - 09/2022]  , or refer to  REMOVAL [09/2022 - ] 

  7. CHECK NO. 2 HV SUPPLY STACK SUB-ASSEMBLY (HV BATTERY CELL VOLTAGE) 
    WARNING:
    • Be sure to wear insulated gloves and protective goggles.
    • Disconnect only the connector corresponding to the HV battery cell to be checked. Do not disconnect the other connectors.
    NOTE:

    Make sure to use tester probes with a diameter of approximately 0.5 mm (0.0197 in.) when measuring the voltage of each HV battery cell.

    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 appropriate service information because this may cause a malfunction.

    2. Remove the No. 1 HV battery hose.

      Refer to PROCEDURE - Step 21 [08/2020 - 08/2021] , or refer to PROCEDURE - Step 21 [08/2021 - 09/2022] , or refer to PROCEDURE - Step 21 [09/2022 - ]

    3. Disconnect the y13 battery ECU assembly connector.
      GTY946857Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Measure the voltage according to the value(s) in the table below.

      HINT: 

      Measure the voltage of the HV battery cells whose value in the freeze frame data was 1.6 V or less only.

      GTY947027Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Battery ECU Assembly)      		 - -
      HV Battery Cell Tester Connection Condition
      36 y13-1 (VAD) - y13-13 (VA36) Always
      37 y13-13 (VA36) - y13-25 (VA37) Always
      38 y13-25 (VA37) - y13-2 (VA38) Always
      39 y13-2 (VA38) - y13-14 (VA39) Always
      40 y13-14 (VA39) - y13-26 (VA40) Always
      41 y13-26 (VA40) - y13-3 (VA41) Always
      42 y13-3 (VA41) - y13-15 (VA42) Always
      43 y13-15 (VA42) - y13-27 (VA43) Always
      44 y13-27 (VA43) - y13-4 (VA44) Always
      45 y13-4 (VA44) - y13-16 (VA45) Always
      46 y13-16 (VA45) - y13-28 (VA46) Always
      47 y13-28 (VA46) - y13-5 (VA47) Always
      48 y13-5 (VA47) - y13-17 (VA48) Always
      49 y13-17 (VA48) - y13-29 (VA49) Always
      50 y13-29 (VA49) - y13-6 (VA50) Always
      51 y13-6 (VA50) - y13-18 (VA51) Always
      52 y13-18 (VA51) - y13-30 (VA52) Always
      53 y13-30 (VA52) - y13-7 (VA53) Always
      54 y13-7 (VA53) - y13-19 (VA54) Always
      55 y13-19 (VA54) - y13-31 (VA55) Always
      56 y13-31 (VA55) - y13-8 (VA56) Always
      57 y13-8 (VA56) - y13-20 (VA57) Always
      58 y13-20 (VA57) - y13-32 (VA58) Always
      59 y13-32 (VA58) - y13-9 (VA59) Always
      60 y13-9 (VA59) - y13-21 (VA60) Always
      61 y13-21 (VA60) - y13-33 (VA61) Always
      62 y13-33 (VA61) - y13-10 (VA62) Always
      63 y13-10 (VA62) - y13-22 (VA63) Always
      64 y13-22 (VA63) - y13-34 (VA64) Always
      65 y13-34 (VA64) - y13-11 (VA65) Always
      66 y13-11 (VA65) - y13-23 (VA66) Always
      67 y13-23 (VA66) - y13-35 (VA67) Always
      68 y13-35 (VA67) - y13-12 (VA68) Always
      69 y13-12 (VA68) - y13-24 (VA69) Always
      70 y13-24 (VA69) - y13-36 (VA70) Always
      WARNING:

      Make sure not to cross the electrodes of an electrical tester measurement terminals.

      NOTE:

      Make sure to check the polarity of each terminal (positive (+) or negative (-)) before connecting a tester.

      Result

      Result Proceed to
      The voltage between the terminals is 1.6 V or less. A
      Other than above B
    5. Reconnect the y13 battery ECU assembly connector.
    6. Install the No. 1 HV battery hose.

    Result: 

    B 

    REPLACE BATTERY ECU ASSEMBLY. Refer to  REMOVAL [08/2020 - 08/2021]  , or refer to  REMOVAL [08/2021 - 09/2022]  , or refer to  REMOVAL [09/2022 - ] 

    Result: 

    A 

    See step  8

  8. CHECK BATTERY ECU ASSEMBLY (VAD - VA70) 
    NOTE:

    Make sure to use tester probes with a diameter of approximately 0.5 mm (0.0197 in.) when measuring the resistance.

    1. Remove the battery ECU assembly.

      Refer to REMOVAL [08/2020 - 08/2021] , or refer to REMOVAL [08/2021 - 09/2022] , or refer to REMOVAL [09/2022 - ]

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

      HINT: 

      Only inspect the terminals of the battery ECU assembly which correspond to the HV battery cells which measured 1.6 V or less in the previous step.

      GTY946988Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Battery ECU Assembly)      		 - -

      Standard Resistance

      HV Battery Cell Tester Connection
      (Tester Probe Polarity)      		 Condition Specified Condition
      36 y13-1 (VAD) (-) - y13-13 (VA36) (+) Always 50 kΩ or more
      37 y13-13 (VA36) (-) - y13-25 (VA37) (+) Always 50 kΩ or more
      38 y13-25 (VA37) (-) - y13-2 (VA38) (+) Always 50 kΩ or more
      39 y13-2 (VA38) (-) - y13-14 (VA39) (+) Always 50 kΩ or more
      40 y13-14 (VA39) (-) - y13-26 (VA40) (+) Always 50 kΩ or more
      41 y13-26 (VA40) (-) - y13-3 (VA41) (+) Always 50 kΩ or more
      42 y13-3 (VA41) (-) - y13-15 (VA42) (+) Always 50 kΩ or more
      43 y13-15 (VA42) (-) - y13-27 (VA43) (+) Always 50 kΩ or more
      44 y13-27 (VA43) (-) - y13-4 (VA44) (+) Always 50 kΩ or more
      45 y13-4 (VA44) (-) - y13-16 (VA45) (+) Always 50 kΩ or more
      46 y13-16 (VA45) (-) - y13-28 (VA46) (+) Always 50 kΩ or more
      47 y13-28 (VA46) (-) - y13-5 (VA47) (+) Always 50 kΩ or more
      48 y13-5 (VA47) (-) - y13-17 (VA48) (+) Always 50 kΩ or more
      49 y13-17 (VA48) (-) - y13-29 (VA49) (+) Always 50 kΩ or more
      50 y13-29 (VA49) (-) - y13-6 (VA50) (+) Always 50 kΩ or more
      51 y13-6 (VA50) (-) - y13-18 (VA51) (+) Always 50 kΩ or more
      52 y13-18 (VA51) (-) - y13-30 (VA52) (+) Always 50 kΩ or more
      53 y13-30 (VA52) (-) - y13-7 (VA53) (+) Always 50 kΩ or more
      54 y13-7 (VA53) (-) - y13-19 (VA54) (+) Always 50 kΩ or more
      55 y13-19 (VA54) (-) - y13-31 (VA55) (+) Always 50 kΩ or more
      56 y13-31 (VA55) (-) - y13-8 (VA56) (+) Always 50 kΩ or more
      57 y13-8 (VA56) (-) - y13-20 (VA57) (+) Always 50 kΩ or more
      58 y13-20 (VA57) (-) - y13-32 (VA58) (+) Always 50 kΩ or more
      59 y13-32 (VA58) (-) - y13-9 (VA59) (+) Always 50 kΩ or more
      60 y13-9 (VA59) (-) - y13-21 (VA60) (+) Always 50 kΩ or more
      61 y13-21 (VA60) (-) - y13-33 (VA61) (+) Always 50 kΩ or more
      62 y13-33 (VA61) (-) - y13-10 (VA62) (+) Always 50 kΩ or more
      63 y13-10 (VA62) (-) - y13-22 (VA63) (+) Always 50 kΩ or more
      64 y13-22 (VA63) (-) - y13-34 (VA64) (+) Always 50 kΩ or more
      65 y13-34 (VA64) (-) - y13-11 (VA65) (+) Always 50 kΩ or more
      66 y13-11 (VA65) (-) - y13-23 (VA66) (+) Always 50 kΩ or more
      67 y13-23 (VA66) (-) - y13-35 (VA67) (+) Always 50 kΩ or more
      68 y13-35 (VA67) (-) - y13-12 (VA68) (+) Always 50 kΩ or more
      69 y13-12 (VA68) (-) - y13-24 (VA69) (+) Always 50 kΩ or more
      70 y13-24 (VA69) (-) - y13-36 (VA70) (+) Always 50 kΩ or more
      NOTE:
      • Make sure to check the polarity of each terminal (positive (+) or negative (-)) before connecting a tester.
      • Read the resistance after the value has stabilized.
      • In order to avoid damaging the terminals of the battery ECU assembly, make sure to use tester probes with a diameter of approximately 0.5 mm (0.0197 in.) when measuring the resistance of the battery ECU assembly.
    3. Install the battery ECU assembly.

      Result

      Result Proceed to
      The voltage between the terminals is 50 kΩ or more. A
      Other than above B

    Result: 

    A 

    REPLACE NO. 2 HV SUPPLY STACK SUB-ASSEMBLY. Refer to  REMOVAL [08/2020 - 08/2021]  , or refer to  REMOVAL [08/2021 - 09/2022]  , or refer to  REMOVAL [09/2022 - ] 

    Result: 

    B 

    See step  9

  9. REPLACE NO. 2 HV SUPPLY STACK SUB-ASSEMBLY 

    Refer to REMOVAL [08/2020 - 08/2021] , or refer to REMOVAL [08/2021 - 09/2022] , or refer to REMOVAL [09/2022 - ]

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    REPLACE BATTERY ECU ASSEMBLY. Refer to  REMOVAL [08/2020 - 08/2021]  , or refer to  REMOVAL [08/2021 - 09/2022]  , or refer to  REMOVAL [09/2022 - ] 

  10. CLEAR DTC 

    Refer to DTC CHECK / CLEAR [08/2020 - ]

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    See step  11

  11. CHECK DTC OUTPUT (HV BATTERY) 
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (IG) and wait for 1 minute or more.
    3. Enter the following menus: Powertrain / HV Battery / Trouble Codes.
    4. Check for DTCs.

      Powertrain > HV Battery > Trouble Codes 

      Result

      Result Proceed to
      "P0E2D-00" is output. A
      "P0E2D-00" is not output. B
    5. Turn the power switch off.

    Result: 

    B 

    REPLACE BATTERY ECU ASSEMBLY. Refer to  REMOVAL [08/2020 - 08/2021]  , or refer to  REMOVAL [08/2021 - 09/2022]  , or refer to  REMOVAL [09/2022 - ] 

    Result: 

    A 

    See step  12

  12. SIMULATION TEST 
    NOTE:

    Do not turn the power switch off while performing this inspection.

    1. With the vehicle stopped and the shift position in P, turn the power switch on (IG) and wait for at least 70 seconds.
    2. Turn the power switch on (READY) and without depressing the accelerator pedal, and while depressing the brake pedal, change the shift position to D and wait for 1 minutes. (Step A)
    3. Drive the vehicle 0.5 m (1.6 ft.) forward and perform step A.
    4. Drive the vehicle another 0.5 m (1.6 ft.) forward and perform step A. Repeat this procedure 5 times (minimum total driving distance: 2 m (6.6 ft.)).
    5. Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.
    6. Check if DTCs are output.

      Powertrain > Hybrid Control > Trouble Codes 

      Result

      Result Proceed to
      "P0AA6-49" is not output. A
      "P0AA6-49" is output. B
    7. Turn the power switch off.

    Result: 

    B 

    GO TO DTC CHART (P0AA6-49). Refer to  DTC P0AA6-49: Hybrid/EV Battery Voltage System Isolation Internal Electronic Failure; DTC P1C7C-49: Hybrid/EV Battery Voltage System Isolation (A/C Area) Internal Electronic Failure; DTC P1C7D-49: Hybrid/EV Battery Voltage System Isolation (Hybrid/EV Battery Area) Internal Electronic Failure; DTC P1C7E-49: Hybrid/EV Battery Voltage System Isolation (Transaxle Area) Internal Electronic Failure; DTC P1C7F-49: Hybrid/EV Battery Voltage System Isolation (Direct Current Area) Internal Electronic Failure [08/2020 - ] 

    Result: 

    A 

    See step  13

  13. CHECK DTC OUTPUT (HV BATTERY) 
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Enter the following menus: Powertrain / HV Battery / Trouble Codes.
    4. Check for DTCs.

      Powertrain > HV Battery > Trouble Codes 

      Result

      Result Proceed to
      "P0E2D-00" is not output. A
      "P0E2D-00" is output. B
    5. Turn the power switch off.

    Result: 

    A 

    See step  15

    Result: 

    B 

    See step  14

  14. CHECK INVERTER WITH CONVERTER 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 power switch on (READY), unless instructed by the appropriate service information because this may cause a malfunction.

    2. Disconnect the motor cable from the inverter with converter assembly.

      HINT: 

      Make sure that no foreign matter, coolant or water enters the inverter with converter assembly.

      GTY763546Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Using a megohmmeter set to 500 V, measure the resistance according to the value(s) in the table below.
      NOTE:

      Be sure to set the megohmmeter to 500 V when performing this test. Using a setting higher than 500 V can result in damage to the component being inspected.

      Standard Resistance

      Tester Connection Condition Specified Condition
      High voltage terminal - Body ground Power switch off 1 MΩ or higher

      HINT: 

      Perform this inspection with the motor cable disconnected from the inverter with converter assembly.

      GTY770198Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a High Voltage Terminal
    4. Reconnect the motor cable to the inverter with converter assembly.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE INVERTER WITH CONVERTER ASSEMBLY. Refer to  REMOVAL [08/2020 - 08/2021]  , or refer to  REMOVAL [08/2021 - 09/2022]  , or refer to  REMOVAL [09/2022 - ] 

    Result: 

    OK 

    See step  15

  15. CHECK HYBRID VEHICLE TRANSAXLE ASSEMBLY (MOTOR CABLE (FOR MG2)) 
    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 power switch on (READY), unless instructed by the appropriate service information because this may cause a malfunction.

    2. Disconnect the motor cable from the inverter with converter assembly.

      HINT: 

      Make sure that no foreign matter, coolant or water enters the inverter with converter assembly.

      GTY763546Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Connect the cable to the negative (-) auxiliary battery terminal.
    4. Turn the power switch on (IG).
      NOTE:

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

    5. Move the shift lever to N and lift the vehicle.
    6. Turn the power switch off.
    7. Using a megohmmeter set to 500 V, measure the resistance according to the value(s) in the table below while rotating the front wheels 2 revolutions in the same direction simultaneously.
      NOTE:
      • Carefully perform this inspection as the motor (MG2) may generate current when the front wheels are rotated by hand.
      • Be sure to set the megohmmeter to 500 V when performing this test. Using a setting higher than 500 V can result in damage to the component being inspected.

      HINT: 

      As the insulation resistance may vary when motor (MG2) rotates, perform this inspection while rotating the front wheels.

      Standard Resistance

      Tester Connection Condition Specified Condition
      Y2-2 (U) - Body ground and shield ground Power switch off 100 MΩ or higher
      Y2-3 (V) - Body ground and shield ground Power switch off 100 MΩ or higher
      Y2-1 (W) - Body ground and shield ground Power switch off 100 MΩ or higher
      GTY946967Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Shield Ground
      *a Motor Cable (for MG2)
      (Inverter with Converter Assembly Side)
    8. Lower the vehicle and move the shift lever to P.
    9. Disconnect the cable from the negative (-) auxiliary battery terminal.
    10. Reconnect the motor cable to the inverter with converter assembly.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  17

    Result: 

    OK 

    See step  16

  16. CHECK HYBRID VEHICLE TRANSAXLE ASSEMBLY (MOTOR CABLE (FOR MG1)) 
    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 power switch on (READY), unless instructed by the appropriate service information because this may cause a malfunction.

    2. Disconnect the motor cable from the inverter with converter assembly.

      HINT: 

      Make sure that no foreign matter, coolant or water enters the inverter with converter assembly.

      GTY763546Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Connect the cable to the negative (-) auxiliary battery terminal.
    4. Turn the power switch on (IG).
      NOTE:

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

    5. Move the shift lever to N and lift the vehicle.
    6. Turn the power switch off.
    7. Using a megohmmeter set to 500 V, measure the resistance according to the value(s) in the table below while rotating the front wheels 2 revolutions in the same direction simultaneously.
      NOTE:
      • Carefully perform this inspection as the motor (MG2) may generate current when the front wheels are rotated by hand.
      • Be sure to set the megohmmeter to 500 V when performing this test. Using a setting higher than 500 V can result in damage to the component being inspected.

      HINT: 

      As the insulation resistance may vary when motor (MG2) rotates, perform this inspection while rotating the front wheels.

      Standard Resistance

      Tester Connection Condition Specified Condition
      Y2-5 (U) - Body ground and shield ground Power switch off 100 MΩ or higher
      Y2-6 (V) - Body ground and shield ground Power switch off 100 MΩ or higher
      Y2-4 (W) - Body ground and shield ground Power switch off 100 MΩ or higher
      GTY946968Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Shield Ground
      *a Motor Cable (for MG1)
      (Inverter with Converter Assembly Side)
    8. Lower the vehicle and move the shift lever to P.
    9. Disconnect the cable from the negative (-) auxiliary battery terminal.
    10. Reconnect the motor cable to the inverter with converter assembly.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE BATTERY ECU ASSEMBLY. Refer to  REMOVAL [08/2020 - 08/2021]  , or refer to  REMOVAL [08/2021 - 09/2022]  , or refer to  REMOVAL [09/2022 - ] 

    Result: 

    NG 

    See step  18

  17. CHECK MOTOR CABLE (FOR MG2) 
    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 power switch on (READY), unless instructed by the appropriate service information because this may cause a malfunction.

    2. Remove the motor cable from the hybrid vehicle transaxle assembly.

      Refer to REMOVAL [08/2020 - 08/2021] , or refer to REMOVAL [08/2021 - 09/2022] , or refer to REMOVAL [09/2022 - ]

    3. Using a megohmmeter set to 500 V, measure the resistance according to the value(s) in the table below.
      NOTE:

      Be sure to set the megohmmeter to 500 V when performing this test. Using a setting higher than 500 V can result in damage to the component being inspected.

      Standard Resistance

      Tester Connection Condition Specified Condition
      Y2-2 (U) - Shield ground Power switch off 100 MΩ or higher
      Y2-3 (V) - Shield ground Power switch off 100 MΩ or higher
      Y2-1 (W) - Shield ground Power switch off 100 MΩ or higher
      GTY946967Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Shield Ground
      *a Motor Cable (for MG2)
      (Inverter with Converter Assembly Side)
    4. Install the motor cable to the inverter with converter assembly.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE HYBRID VEHICLE TRANSAXLE ASSEMBLY. Refer to  REMOVAL [08/2020 - 08/2021]  , or refer to  REMOVAL [08/2021 - 09/2022]  , or refer to  REMOVAL [09/2022 - ] 

    Result: 

    NG 

    REPLACE MOTOR CABLE. Refer to  REMOVAL [08/2020 - 08/2021]  , or refer to  REMOVAL [08/2021 - 09/2022]  , or refer to  REMOVAL [09/2022 - ] 

  18. CHECK MOTOR CABLE (FOR MG1) 
    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 power switch on (READY), unless instructed by the appropriate service information because this may cause a malfunction.

    2. Remove the motor cable from the hybrid vehicle transaxle assembly.

      Refer to REMOVAL [08/2020 - 08/2021] , or refer to REMOVAL [08/2021 - 09/2022] , or refer to REMOVAL [09/2022 - ]

    3. Using a megohmmeter set to 500 V, measure the resistance according to the value(s) in the table below.
      NOTE:

      Be sure to set the megohmmeter to 500 V when performing this test. Using a setting higher than 500 V can result in damage to the component being inspected.

      Standard Resistance

      Tester Connection Condition Specified Condition
      Y2-5 (U) - Shield ground Power switch off 100 MΩ or higher
      Y2-6 (V) - Shield ground Power switch off 100 MΩ or higher
      Y2-4 (W) - Shield ground Power switch off 100 MΩ or higher
      GTY946968Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Shield Ground
      *a Motor Cable (for MG1)
      (Inverter with Converter Assembly Side)
    4. Install the motor cable to the inverter with converter assembly.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE HYBRID VEHICLE TRANSAXLE ASSEMBLY. Refer to  REMOVAL [08/2020 - 08/2021]  , or refer to  REMOVAL [08/2021 - 09/2022]  , or refer to  REMOVAL [09/2022 - ] 

    Result: 

    NG 

    REPLACE MOTOR CABLE. Refer to  REMOVAL [08/2020 - 08/2021]  , or refer to  REMOVAL [08/2021 - 09/2022]  , or refer to  REMOVAL [09/2022 - ] 

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