СИСТЕМА УПРАВЛЕНИЯ ГИБРИДНОЙ СИСТЕМОЙ, Diagnostic DTC:P0A94-549

DTC Code DTC Name
P0A94-549 DC / DC Converter Performance

DESCRIPTION

For a description of the boost converter Click here.

If a malfunction occurs in the boost converter, the MG ECU detects it and transmits this information to the power management control ECU.

DTC No. DTC Detection Condition Trouble Area
P0A94-549

Boost converter overvoltage signal detection (overvoltage due to hybrid vehicle transmission assembly malfunction)

Overvoltage is detected before boosting.*

(1 trip detection logic)

  • Wire harness or connector

  • Inverter with converter assembly

  • Hybrid vehicle transmission assembly

WIRING DIAGRAM

Refer to the wiring diagram for DTC P0A1A-200 Click here.

INSPECTION PROCEDURE

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.

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

After the repair, clear the DTCs and perform the following procedure to check that DTCs are not output.


  1. Turn the power switch on (READY) and wait for 5 seconds or more.

  2. Depress the accelerator pedal of the vehicle with the engine stopped and the shift lever in P to start the engine.

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. Check for DTCs.

      Result
      Result Proceed to
      P0A94-549 only is output, or DTCs except the ones in the table below are also output. A
      Any of the following DTCs including pending DTCs are also output. B
      Relevant DTC
      P0A1A (all INF codes)*1 Generator Control Module
      P0A1B (all INF codes)*1 Drive Motor "A" Control Module
      P0A1D (all INF codes)*1 Hybrid Powertrain Control Module
      P0A3F-243 Drive Motor "A" Position Sensor Circuit
      P0A40-500 Drive Motor "A" Position Sensor Circuit Range / Performance
      P0A41-245 Drive Motor "A" Position Sensor Circuit Low
      P0A4B-253 Generator Position Sensor Circuit
      P0A4C-513 Generator Position Sensor Circuit Range / Performance
      P0A4D-255 Generator Position Sensor Circuit Low
      P0A60 (all INF codes)*1 Drive Motor "A" Phase V Current
      P0A63 (all INF codes)*1 Drive Motor "A" Phase W Current
      P0A72 (all INF codes)*1 Generator Phase V Current
      P0A75 (all INF codes)*1 Generator Phase W Current
      P0A78-266, 267, 287, 505, 506, 586, 806, 807, 808 Drive Motor "A" Inverter Performance
      P0A7A-325, 517, 518, 809, 810, 811 Generator Inverter Performance
      P0A94-554, 555, 556, 564, 585, 587, 589, 590 DC / DC Converter Performance
      P0ADB-227 Hybrid Battery Positive Contactor Control Circuit Low
      P0ADC-226 Hybrid Battery Positive Contactor Control Circuit High
      P0ADF-229 Hybrid Battery Negative Contactor Control Circuit Low
      P0AE0-228 Hybrid Battery Negative Contactor Control Circuit High
      P0C76-523 Hybrid Battery System Discharge Time Too Long
      P3004-803 High Voltage Power Resource

      Tech Tips


      • *1: If any INF codes are output for this DTC, refer to the corresponding diagnostic procedure.

      • P0A94-549 may be stored due to a malfunction which also causes DTCs in the preceding table to be stored. In this case, first troubleshoot the output DTCs in the preceding table. Then, perform a test to attempt to reproduce the problems, and check that no DTCs are output.

    5. Turn the power switch off.


    B

    GO TO DTC CHART (HYBRID CONTROL SYSTEM) Click here

    A

  2. CHECK CONNECTOR CONNECTION CONDITION (INVERTER WITH CONVERTER ASSEMBLY CONNECTOR)

    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. Check connection condition of the low voltage connector of the inverter with converter assembly and the contact pressure of each terminal. Check the terminals for deformation, and check the connector for water ingress and foreign matter Click here.

      A01FRYME01
      Text in Illustration
      *A for LHD *B for RHD

      Note

      Before disconnecting the connector, confirm that it is properly connected by checking that the locking claws are engaged and that the connector does not pull out.

      OK
      - The connector is connected securely.
      - The terminals are not deformed and are connected securely.
      - No water or foreign matter in the connector.
      Result
      Result Proceed to
      OK A
      NG (The connector is not connected securely.) B
      NG (The terminals are not making secure contact or are deformed, or water or foreign matter exists in the connector.) C

      Tech Tips

      When connecting the connector, insert it with the locking lever in the raised position. Rotate the lever downward and make sure that the connector is pulled into its socket. When the locking lever is in its fully closed position, a click will be heard as its locking claws engage. After the click is heard, pull up on the connector to confirm that it is properly connected.


    B

    CONNECT SECURELY

    C

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    A

  3. CHECK HARNESS AND CONNECTOR (INVERTER WITH CONVERTER ASSEMBLY - GENERATOR RESOLVER)

    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. Disconnect the A38*1 or A74*2 inverter with converter assembly connector.


      • *1: for LHD

      • *2: for RHD

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

    4. Turn the power switch on (IG).

    5. A01FQOWE17
      Text in Illustration
      *A for LHD
      *B for RHD
      *a

      Front view of wire harness connector

      (to Inverter with Converter Assembly)

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

      Standard Voltage
      for LHD
      Tester Connection Switch Condition Specified Condition
      A38-20 (GRF) - Body ground Power switch on (IG) Below 1 V
      A38-9 (GRFG) - Body ground Power switch on (IG) Below 1 V
      A38-18 (GSN) - Body ground Power switch on (IG) Below 1 V
      A38-7 (GSNG) - Body ground Power switch on (IG) Below 1 V
      A38-17 (GCS) - Body ground Power switch on (IG) Below 1 V
      A38-6 (GCSG) - Body ground Power switch on (IG) Below 1 V
      for RHD
      Tester Connection Switch Condition Specified Condition
      A74-20 (GRF) - Body ground Power switch on (IG) Below 1 V
      A74-9 (GRFG) - Body ground Power switch on (IG) Below 1 V
      A74-18 (GSN) - Body ground Power switch on (IG) Below 1 V
      A74-7 (GSNG) - Body ground Power switch on (IG) Below 1 V
      A74-17 (GCS) - Body ground Power switch on (IG) Below 1 V
      A74-6 (GCSG) - Body ground Power switch on (IG) Below 1 V

      Note

      Turning the power switch on (IG) with the inverter with converter assembly disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.

    6. Turn the power switch off.

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

    8. Reconnect the A38*1 or A74*2 inverter with converter assembly connector.


      • *1: for LHD

      • *2: for RHD


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. CHECK GENERATOR RESOLVER

    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. Disconnect the A38*1 or A74*2 inverter with converter assembly connector.


      • *1: for LHD

      • *2: for RHD

    3. A01FQOWE17
      Text in Illustration
      *A for LHD
      *B for RHD
      *a

      Front view of wire harness connector

      (to Inverter with Converter Assembly)

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

      Standard Resistance (Check for Open)
      for LHD
      Tester Connection Switch Condition Specified Condition
      A38-20 (GRF) - A38-9 (GRFG) Power switch off 4.2 to 12.5 Ω
      A38-18 (GSN) - A38-7 (GSNG) Power switch off 9.8 to 20.1 Ω
      A38-17 (GCS) - A38-6 (GCSG) Power switch off 9.8 to 20.1 Ω
      for RHD
      Tester Connection Switch Condition Specified Condition
      A74-20 (GRF) - A74-9 (GRFG) Power switch off 4.2 to 12.5 Ω
      A74-18 (GSN) - A74-7 (GSNG) Power switch off 9.8 to 20.1 Ω
      A74-17 (GCS) - A74-6 (GCSG) Power switch off 9.8 to 20.1 Ω
      Standard Resistance (Check for Short)
      for LHD
      Tester Connection Switch Condition Specified Condition
      A38-20 (GRF) or A38-9 (GRFG) - Body ground and other terminals Power switch off 1 MΩ or higher
      A38-18 (GSN) or A38-7 (GSNG) - Body ground and other terminals Power switch off 1 MΩ or higher
      A38-17 (GCS) or A38-6 (GCSG) - Body ground and other terminals Power switch off 1 MΩ or higher
      for RHD
      Tester Connection Switch Condition Specified Condition
      A74-20 (GRF) or A74-9 (GRFG) - Body ground and other terminals Power switch off 1 MΩ or higher
      A74-18 (GSN) or A74-7 (GSNG) - Body ground and other terminals Power switch off 1 MΩ or higher
      A74-17 (GCS) or A74-6 (GCSG) - Body ground and other terminals Power switch off 1 MΩ or higher

    4. Reconnect the A38*1 or A74*2 inverter with converter assembly connector.


      • *1: for LHD

      • *2: for RHD


    NG

    Click here

    OK

  5. CHECK HARNESS AND CONNECTOR (INVERTER WITH CONVERTER ASSEMBLY - MOTOR RESOLVER)

    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. Disconnect the A38*1 or A74*2 inverter with converter assembly connector.


      • *1: for LHD

      • *2: for RHD

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

    4. Turn the power switch on (IG).

    5. A01FQOWE18
      Text in Illustration
      *A for LHD
      *B for RHD
      *a

      Front view of wire harness connector

      (to Inverter with Converter Assembly)

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

      Standard Voltage
      for LHD
      Tester Connection Switch Condition Specified Condition
      A38-40 (MRF) - Body ground Power switch on (IG) Below 1 V
      A38-29 (MRFG) - Body ground Power switch on (IG) Below 1 V
      A38-39 (MSN) - Body ground Power switch on (IG) Below 1 V
      A38-28 (MSNG) - Body ground Power switch on (IG) Below 1 V
      A38-38 (MCS) - Body ground Power switch on (IG) Below 1 V
      A38-27 (MCSG) - Body ground Power switch on (IG) Below 1 V
      for RHD
      Tester Connection Switch Condition Specified Condition
      A74-40 (MRF) - Body ground Power switch on (IG) Below 1 V
      A74-29 (MRFG) - Body ground Power switch on (IG) Below 1 V
      A74-39 (MSN) - Body ground Power switch on (IG) Below 1 V
      A74-28 (MSNG) - Body ground Power switch on (IG) Below 1 V
      A74-38 (MCS) - Body ground Power switch on (IG) Below 1 V
      A74-27 (MCSG) - Body ground Power switch on (IG) Below 1 V

      Note

      Turning the power switch on (IG) with the inverter with converter assembly disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.

    6. Turn the power switch off.

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

    8. Reconnect the A38*1 or A74*2 inverter with converter assembly connector.


      • *1: for LHD

      • *2: for RHD


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. CHECK MOTOR RESOLVER

    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. Disconnect the A38*1 or A74*2 inverter with converter assembly connector.


      • *1: for LHD

      • *2: for RHD

    3. A01FQOWE18
      Text in Illustration
      *A for LHD
      *B for RHD
      *a

      Front view of wire harness connector

      (to Inverter with Converter Assembly)

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

      Standard Resistance (Check for Open)
      for LHD
      Tester Connection Switch Condition Specified Condition
      A38-40 (MRF) - A38-29 (MRFG) Power switch off 4.2 to 12.5 Ω
      A38-39 (MSN) - A38-28 (MSNG) Power switch off 9.8 to 20.1 Ω
      A38-38 (MCS) - A38-27 (MCSG) Power switch off 9.8 to 20.1 Ω
      for RHD
      Tester Connection Switch Condition Specified Condition
      A74-40 (MRF) - A74-29 (MRFG) Power switch off 4.2 to 12.5 Ω
      A74-39 (MSN) - A74-28 (MSNG) Power switch off 9.8 to 20.1 Ω
      A74-38 (MCS) - A74-27 (MCSG) Power switch off 9.8 to 20.1 Ω
      Standard Resistance (Check for Short)
      for LHD
      Tester Connection Switch Condition Specified Condition
      A38-40 (MRF) or A38-29 (MRFG) - Body ground and other terminals Power switch off 1 MΩ or higher
      A38-39 (MSN) or A38-28 (MSNG) - Body ground and other terminals Power switch off 1 MΩ or higher
      A38-38 (MCS) or A38-27 (MCSG) - Body ground and other terminals Power switch off 1 MΩ or higher
      for RHD
      Tester Connection Switch Condition Specified Condition
      A74-40 (MRF) or A74-29 (MRFG) - Body ground and other terminals Power switch off 1 MΩ or higher
      A74-39 (MSN) or A74-28 (MSNG) - Body ground and other terminals Power switch off 1 MΩ or higher
      A74-38 (MCS) or A74-27 (MCSG) - Body ground and other terminal Power switch off 1 MΩ or higher

    4. Reconnect the A38*1 or A74*2 inverter with converter assembly connector.


      • *1: for LHD

      • *2: for RHD


    NG

    Click here

    OK

  7. CHECK CONNECTOR CONNECTION CONDITION (GENERATOR RESOLVER CONNECTOR)


    1. A01FS4V

      Remove the hybrid vehicle transmission assembly Click here.

    2. Check the connection condition of the generator resolver connector and the contact pressure of each terminal. Check the terminals for deformation, and check the connector for water ingress and foreign matter Click here.

      OK
      - The connector is connected securely.
      - The terminals are not deformed and are connected securely.
      - No water or foreign matter in the connector.
      Result
      Result Proceed to
      OK A
      NG (The connector is not connected securely.) B
      NG (The terminals are not making secure contact or are deformed, or water or foreign matter exists in the connector.) C

    B

    CONNECT SECURELY

    C

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    A

  8. CHECK CONNECTOR CONNECTION CONDITION (MOTOR RESOLVER CONNECTOR)


    1. A01FT1X

      Check the connection condition of the motor resolver connector and the contact pressure of each terminal. Check the terminals for deformation, and check the connector for water ingress and foreign matter Click here.

      OK
      - The connector is connected securely.
      - The terminals are not deformed and are connected securely.
      - No water or foreign matter in the connector.
      Result
      Result Proceed to
      OK A
      NG (The connector is not connected securely.) B
      NG (The terminals are not making secure contact or are deformed, or water or foreign matter exists in the connector.) C

    2. Install the hybrid vehicle transmission assembly.


    B

    CONNECT SECURELY

    C

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    A

    REPLACE INVERTER WITH CONVERTER ASSEMBLY Click here

  9. CHECK CONNECTOR CONNECTION CONDITION (GENERATOR RESOLVER CONNECTOR)


    1. Remove the hybrid vehicle transmission assembly Click here.

    2. A01FS4V

      Check the connection condition of the generator resolver connector and the contact pressure of each terminal. Check the terminals for deformation, and check the connector for water ingress and foreign matter Click here.

      OK
      - The connector is connected securely.
      - The terminals are not deformed and are connected securely.
      - No water or foreign matter in the connector.
      Result
      Result Proceed to
      OK A
      NG (The connector is not connected securely.) B
      NG (The terminals are not making secure contact or are deformed, or water or foreign matter exists in the connector.) C

    B

    CONNECT SECURELY

    C

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    A

  10. CHECK HARNESS AND CONNECTOR (INVERTER WITH CONVERTER ASSEMBLY - GENERATOR RESOLVER)

    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. Disconnect the A38*1 or A74*2 inverter with converter assembly connector.


      • *1: for LHD

      • *2: for RHD

    3. Disconnect the F50 generator resolver connector.

    4. A01FT2DE03
      Text in Illustration
      *A for LHD
      *B for RHD
      *a

      Front view of wire harness connector

      (to Generator Resolver)
      *b

      Front view of wire harness connector

      (to Inverter with Converter Assembly)

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

      Standard Resistance (Check for Open)
      for LHD
      Tester Connection Switch Condition Specified Condition
      A38-20 (GRF) - F50-1 (GRF) Power switch off Below 1 Ω
      A38-9 (GRFG) - F50-5 (GRFG) Power switch off Below 1 Ω
      A38-18 (GSN) - F50-2 (GSN) Power switch off Below 1 Ω
      A38-7 (GSNG) - F50-6 (GSNG) Power switch off Below 1 Ω
      A38-17 (GCS) - F50-3 (GCS) Power switch off Below 1 Ω
      A38-6 (GCSG) - F50-7 (GCSG) Power switch off Below 1 Ω
      for RHD
      Tester Connection Switch Condition Specified Condition
      A74-20 (GRF) - F50-1 (GRF) Power switch off Below 1 Ω
      A74-9 (GRFG) - F50-5 (GRFG) Power switch off Below 1 Ω
      A74-18 (GSN) - F50-2 (GSN) Power switch off Below 1 Ω
      A74-7 (GSNG) - F50-6 (GSNG) Power switch off Below 1 Ω
      A74-17 (GCS) - F50-3 (GCS) Power switch off Below 1 Ω
      A74-6 (GCSG) - F50-7 (GCSG) Power switch off Below 1 Ω
      Standard Resistance (Check for Short)
      for LHD
      Tester Connection Switch Condition Specified Condition
      A38-20 (GRF) or F50-1 (GRF) - Body ground and other terminals Power switch off 1 MΩ or higher
      A38-9 (GRFG) or F50-5 (GRFG) - Body ground and other terminals Power switch off 1 MΩ or higher
      A38-18 (GSN) or F50-2 (GSN) - Body ground and other terminals Power switch off 1 MΩ or higher
      A38-7 (GSNG) or F50-6 (GSNG) - Body ground and other terminals Power switch off 1 MΩ or higher
      A38-17 (GCS) or F50-3 (GCS) - Body ground and other terminals Power switch off 1 MΩ or higher
      A38-6 (GCSG) or F50-7 (GCSG) - Body ground and other terminals Power switch off 1 MΩ or higher
      for RHD
      Tester Connection Switch Condition Specified Condition
      A74-20 (GRF) or F50-1 (GRF) - Body ground and other terminals Power switch off 1 MΩ or higher
      A74-9 (GRFG) or F50-5 (GRFG) - Body ground and other terminals Power switch off 1 MΩ or higher
      A74-18 (GSN) or F50-2 (GSN) - Body ground and other terminals Power switch off 1 MΩ or higher
      A74-7 (GSNG) or F50-6 (GSNG) - Body ground and other terminals Power switch off 1 MΩ or higher
      A74-17 (GCS) or F50-3 (GCS) - Body ground and other terminals Power switch off 1 MΩ or higher
      A74-6 (GCSG) or F50-7 (GCSG) - Body ground and other terminals Power switch off 1 MΩ or higher

      Tech Tips

      The generator resolver is not available as a supply part. If it requires replacement, replace the hybrid vehicle transmission assembly.

    5. Reconnect the F50 generator resolver connector.

    6. Reconnect the A38*1 or A74*2 inverter with converter assembly connector.


      • *1: for LHD

      • *2: for RHD


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE HYBRID VEHICLE TRANSMISSION ASSEMBLY Click here

  11. CHECK CONNECTOR CONNECTION CONDITION (MOTOR RESOLVER CONNECTOR)


    1. Remove the hybrid vehicle transmission assembly Click here.

    2. A01FT1X

      Check the connection condition of the motor resolver connector and the contact pressure of each terminal. Check the terminals for deformation, and check the connector for water ingress and foreign matter Click here.

      OK
      - The connector is connected securely.
      - The terminals are not deformed and are connected securely.
      - No water or foreign matter in the connector.
      Result
      Result Proceed to
      OK A
      NG (The connector is not connected securely.) B
      NG (The terminals are not making secure contact or are deformed, or water or foreign matter exists in the connector.) C

    B

    CONNECT SECURELY

    C

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    A

  12. CHECK HARNESS AND CONNECTOR (INVERTER WITH CONVERTER ASSEMBLY - MOTOR RESOLVER)

    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. Disconnect the A38*1 or A74*2 inverter with converter assembly connector.


      • *1: for LHD

      • *2: for RHD

    3. Disconnect the F51 motor resolver connector.

    4. A01FT2DE04
      Text in Illustration
      *A for LHD
      *B for RHD
      *a

      Front view of wire harness connector

      (to Motor Resolver)
      *b

      Front view of wire harness connector

      (to Inverter with Converter Assembly)

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

      Standard Resistance (Check for Open)
      for LHD
      Tester Connection Switch Condition Specified Condition
      A38-40 (MRF) - F51-1 (MRF) Power switch off Below 1 Ω
      A38-29 (MRFG) - F51-5 (MRFG) Power switch off Below 1 Ω
      A38-39 (MSN) - F51-2 (MSN) Power switch off Below 1 Ω
      A38-28 (MSNG) - F51-6 (MSNG) Power switch off Below 1 Ω
      A38-38 (MCS) - F51-3 (MCS) Power switch off Below 1 Ω
      A38-27 (MCSG) - F51-7 (MCSG) Power switch off Below 1 Ω
      for RHD
      Tester Connection Switch Condition Specified Condition
      A74-40 (MRF) - F51-1 (MRF) Power switch off Below 1 Ω
      A74-29 (MRFG) - F51-5 (MRFG) Power switch off Below 1 Ω
      A74-39 (MSN) - F51-2 (MSN) Power switch off Below 1 Ω
      A74-28 (MSNG) - F51-6 (MSNG) Power switch off Below 1 Ω
      A74-38 (MCS) - F51-3 (MCS) Power switch off Below 1 Ω
      A74-27 (MCSG) - F51-7 (MCSG) Power switch off Below 1 Ω
      Standard Resistance (Check for Short)
      for LHD
      Tester Connection Switch Condition Specified Condition
      A38-40 (MRF) or F51-1 (MRF) - Body ground and other terminals Power switch off 1 MΩ or higher
      A38-29 (MRFG) or F51-5 (MRFG) - Body ground and other terminals Power switch off 1 MΩ or higher
      A38-39 (MSN) or F51-2 (MSN) - Body ground and other terminals Power switch off 1 MΩ or higher
      A38-28 (MSNG) or F51-6 (MSNG) - Body ground and other terminals Power switch off 1 MΩ or higher
      A38-38 (MCS) or F51-3 (MCS) - Body ground and other terminals Power switch off 1 MΩ or higher
      A38-27 (MCSG) or F51-7 (MCSG) - Body ground and other terminals Power switch off 1 MΩ or higher
      for RHD
      Tester Connection Switch Condition Specified Condition
      A74-40 (MRF) or F51-1 (MRF) - Body ground and other terminals Power switch off 1 MΩ or higher
      A74-29 (MRFG) or F51-5 (MRFG) - Body ground and other terminals Power switch off 1 MΩ or higher
      A74-39 (MSN) or F51-2 (MSN) - Body ground and other terminals Power switch off 1 MΩ or higher
      A74-28 (MSNG) or F51-6 (MSNG) - Body ground and other terminals Power switch off 1 MΩ or higher
      A74-38 (MCS) or F51-3 (MCS) - Body ground and other terminals Power switch off 1 MΩ or higher
      A74-27 (MCSG) or F51-7 (MCSG) - Body ground and other terminals Power switch off 1 MΩ or higher

      Tech Tips

      The motor resolver is not available as a supply part. If it requires replacement, replace the hybrid vehicle transmission assembly.

    5. Reconnect the F51 motor resolver connector.

    6. Reconnect the A38*1 or A74*2 inverter with converter assembly connector.


      • *1: for LHD

      • *2: for RHD


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE HYBRID VEHICLE TRANSMISSION ASSEMBLY Click here