HYBRID CONTROL SYSTEM, Diagnostic DTC:P0A79-136

DTC Code DTC Name
P0A79-136 Drive Motor "B" Inverter Performance

DESCRIPTION

For a description of the inverter, Click here.

If an abnormal amount of current flows through the rear motor inverter, the MG ECU detects it and sends a signal to inform the power management control ECU (HV CPU) of the malfunction.

Tech Tips

The term "drive motor B" indicates MGR.

DTC No. INF Code DTC Detection Condition Trouble Area
P0A79 136

Abnormal rear motor current value detection

(System malfunction)

  • Inverter with converter assembly

  • Rear traction motor with transaxle assembly

  • PCU Fuse

  • Wire harness or connector

  • Power management control ECU

  • NO.3 wire frame

  • Extension wire assembly

WIRING DIAGRAM

Refer to the wiring diagram for DTC P324E-788 Click here.

A01NH4LE01

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 disconnecting 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.

Tech Tips

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

PROCEDURE


  1. CHECK DTC OUTPUT (HV)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the power switch on (IG).

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

    4. Check if DTCs are output.

      Result
      Result Proceed to
      P0A79-716 is not output. A
      P0A79-716 is also output. B

      Note


      • If P0A79-716 is output, troubleshoot it first. After completing the troubleshooting for P0A79-716, return to perform troubleshooting for this DTC.

      • Parts repaired or replaced during troubleshooting for P0A79-716 do not need to be re-inspected in this diagnosis procedure.

    5. Turn the power switch off.


    B

    GO TO DTC CHART Click here

    A

  2. CHECK DTC OUTPUT (HV)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the power switch on (IG).

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

    4. Check if DTCs are output.

      Tech Tips


      • If P0A79-716 was not output in step 1 of this diagnosis procedure, check Table 1 below.

      • If P0A79-716 was output in step 1 of this diagnosis procedure, repair that DTC first, then check Table 2 below.

      Result
      Result Proceed to
      P0A79-136 only is output. A
      Any of the following DTCs are also output. B
      Table 1
      DTC No. Relevant Diagnosis
      P0A1A (all INF codes)*1 Generator Control Module
      P0A1B (all INF codes)*1 Drive Motor "A" Control Module
      P0A1C (all INF codes)*1 Drive Motor "B" 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
      P0A45-669 Drive Motor "B" Position Sensor Circuit
      P0A46-671 Drive Motor "B" Position Sensor Circuit Range / Performance
      P0A47-670 Drive Motor "B" 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
      P0A69 (all INF codes)*1 Drive Motor "B" Phase V Current
      P0A6C (all INF codes)*1 Drive Motor "B" Phase W Current
      P0A72 (all INF codes)*1 Generator Phase V Current
      P0A75 (all INF codes)*1 Generator Phase W Current
      P0A78-118, 119, 120, 266, 267, 279, 287, 306, 503, 504, 505, 506, 586, 806, 807, 808 Drive Motor "A" Inverter Performance
      P0A79-693, 694, 695, 704, 812, 813, 814 Drive Motor "B" Inverter Performance
      P0A7A-324, 325, 344, 517, 518, 809, 810, 811 Generator Inverter Performance
      P0A90-509 Drive Motor "A" Performance
      P0A91-702 Drive Motor "B" Performance
      P0A92-521 Hybrid Generator Performance
      P0A94-124, 125, 126, 169, 170, 171, 442, 547, 548, 549, 554, 555, 556, 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
      Table 2
      DTC No. Relevant Diagnosis
      P0A1A (all INF codes)*1 Generator Control Module
      P0A1B (all INF codes)*1 Drive Motor "A" Control Module
      P0A1C (all INF codes)*1 Drive Motor "B" 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
      P0A45-669 Drive Motor "B" Position Sensor Circuit
      P0A46-671 Drive Motor "B" Position Sensor Circuit Range / Performance
      P0A47-670 Drive Motor "B" 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
      P0A69-677 Drive Motor "B" Phase V Current
      P0A6C-678 Drive Motor "B" Phase W Current
      P0A72 (all INF codes)*1 Generator Phase V Current
      P0A75 (all INF codes)*1 Generator Phase W Current
      P0A78-118, 119, 120, 266, 267, 279, 287, 306, 503, 504, 505, 506, 586, 806, 807, 808 Drive Motor "A" Inverter Performance
      P0A79-693, 694, 695, 812, 813, 814 Drive Motor "B" Inverter Performance
      P0A7A-324, 325, 344, 517, 518, 809, 810, 811 Generator Inverter Performance
      P0A90-509 Drive Motor "A" Performance
      P0A92-521 Hybrid Generator Performance
      P0A94-124, 125, 126, 169, 170, 171, 442, 547, 548, 549, 554, 555, 556, 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.

      • P0A79-136 may be set due to a malfunction which also causes DTCs in the preceding table to be set. 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 Click here

    A

  3. 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.

      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.

      A01NHWR

    2. Check the connection of the low voltage connector of the inverter with converter assembly.

      OK
      The connector is connected securely and there are no contact problems.

      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.


    NG

    CONNECT SECURELY

    OK

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

    CAUTION:

    Be sure to wear insulated gloves.


    1. Disconnect the low voltage connector A79 from the inverter with converter assembly.

    2. Turn the power switch on (IG).

    3. A01NHEQE01
      Text in Illustration
      *1

      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
      Tester Connection Switch Condition Specified Condition
      A79-34 (RRF) - Body ground Power switch on (IG) Below 1 V
      A79-23 (RRFG) - Body ground Power switch on (IG) Below 1 V
      A79-33 (RSN) - Body ground Power switch on (IG) Below 1 V
      A79-22 (RSNG) - Body ground Power switch on (IG) Below 1 V
      A79-32 (RCS) - Body ground Power switch on (IG) Below 1 V
      A79-21 (RCSG) - Body ground Power switch on (IG) Below 1 V

      Note

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

    4. Turn the power switch off.

    5. Connect the inverter with converter assembly connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. CHECK REAR MOTOR RESOLVER


    1. Disconnect the low voltage connector A79 from the inverter with converter assembly.

    2. A01NHEQE01
      Text in Illustration
      *1

      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)
      Tester Connection Switch Condition Specified Condition
      A79-34 (RRF) - A79-23 (RRFG) Power switch off 4.2 to 12.5 Ω
      A79-33 (RSN) - A79-22 (RSNG) Power switch off 9.8 to 20.1 Ω
      A79-32 (RCS) - A79-21 (RCSG) Power switch off 9.8 to 20.1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Switch Condition Specified Condition
      A79-34 (RRF) or A79-23 (RRFG) - Body ground and other terminals Power switch off 10 kΩ or higher
      A79-33 (RSN) or A79-22 (RSNG) - Body ground and other terminals Power switch off 10 kΩ or higher
      A79-32 (RCS) or A79-21 (RCSG) - Body ground and other terminals Power switch off 10 kΩ or higher

    3. Connect the inverter with converter assembly connector.


    NG

    Click here

    OK

  6. CHECK INVERTER WITH CONVERTER ASSEMBLY (REAR MOTOR CABLE 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. A01NE6E

      Remove the inverter terminal cover from the inverter with converter assembly.

    3. A01NEMY

      Check that the bolts for the rear motor cable are tightened to the specified torque, the rear motor cable is connected securely, and there are no contact problems.

      Specified Condition
      T=8.0 N*m {82 kgf*cm, 71 in.*lbf}

      Note

      Make sure that the tightening torque of the bolts is between 6.4 and 9.6 N*m (65 and 98 kgf*cm, 57 and 85 in.*lbf).

    4. Check for arc marks at the bolts for the rear motor cable.

      Result
      Result Proceed to
      The terminals are connected securely and there are no contact problems. There are no arc marks. A
      The terminals are not connected securely and there is a contact problem. There are arc marks. B
      The terminals are not connected securely and there is a contact problem. There are no arc marks. C
      The terminals are connected securely and there are no contact problems. There are arc marks. B

    5. Install the inverter terminal cover.


    B

    REPLACE MALFUNCTIONING PARTS

    C

    CONNECT SECURELY

    A

  7. CHECK REAR TRACTION MOTOR WITH TRANSAXLE ASSEMBLY (MGR)

    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. A01NE6E

      Remove the inverter terminal cover from the inverter with converter assembly.

    3. A01NEMY

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

    4. A01NCLKE05
      Text in Illustration
      *1 Rear Motor Cable
      *2 Shielded Ground

      Check MGR for an interphase short using a milliohmmeter.


      1. Using a milliohmmeter, measure the resistance according to the value(s) in the table below.

        Tech Tips

        If the MGR temperature is high, the resistance will vary greatly from the specification. Therefore, measure the resistance at least 8 hours after the vehicle is stopped.

        Standard Resistance
        Tester Connection Switch Condition Specified Condition
        g4-3 (R-U) - g4-2 (R-V) Power switch off 162 to 176 mΩ
        g4-2 (R-V) - g4-1 (R-W) Power switch off 162 to 176 mΩ
        g4-1 (R-W) - g4-3 (R-U) Power switch off 162 to 176 mΩ

        Tech Tips

        To correct the variation of the measured resistance due to temperature, use the following formula to calculate the resistance at 20°C (68° F).


        • R20 = Rt / {1 + 0.00393 X (T - 20)}

        The calculation is based on the following:


        • R20: Resistance at 20°C (68° F) (mΩ)

        • Rt: Measured resistance (mΩ)

        • T: Temperature when the resistance is measured (° C)

    5. 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 Switch Condition Specified Condition
      g4-3 (R-U) - Body ground and shielded ground Power switch off 100 MΩ or higher
      g4-2 (R-V) - Body ground and shielded ground Power switch off 100 MΩ or higher
      g4-1 (R-W) - Body ground and shielded ground Power switch off 100 MΩ or higher

    6. Connect the rear motor cable.

    7. Install the inverter terminal cover.


    NG

    Click here

    OK

  8. CHECK FUSE (PCU)


    1. A01NEJ5E02
      Text in Illustration
      *1 Engine Room Relay Block No. 2
      *2 PCU fuse

      Remove the PCU fuse from the engine room relay block No. 2.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      PCU fuse Always Below 1Ω

    3. Install the PCU fuse.


    NG

    Click here

    OK

  9. CHECK HARNESS AND CONNECTOR (INVERTER WITH CONVERTER ASSEMBLY POWER SOURCE CIRCUIT)

    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 connector A79 from inverter with converter assembly.

    3. A01NFV3E03
      Text in Illustration
      *1

      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
      Tester Connection Switch Condition Specified Condition
      A79-10 (GND1) - Body ground Power switch off Below 1 Ω
      A79-11 (GND2) - Body ground Power switch off Below 1 Ω

    4. Turn the power switch on (IG).

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      A79-30 (+B) - Body ground Power switch on (IG) 11 to 14V
      A79-31 (+B2) - Body ground Power switch on (IG) 11 to 14V

    6. Turn the power switch off.

    7. Connect the inverter with converter assembly connector.


    NG

    REPAIR OR REPLACE POWER SOURCE CIRCUIT

    OK

  10. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - INVERTER WITH CONVERTER)

    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. Turn the power switch off.

    3. Disconnect connector A79 from the inverter with converter assembly.

    4. Disconnect connector A81 from the power management control ECU.

    5. A01NFR8E01
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Inverter with Converter Assembly)
      *2

      Front view of wire harness connector

      (to Power Management Control ECU)

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

      Standard Resistance (Check for open)
      Tester Connection Switch Condition Specified Condition
      A81-24 (HTM+) - A79-9 (HTM+) Power switch off Below 1 Ω
      A81-25 (HTM-) - A79-20 (HTM-) Power switch off Below 1 Ω
      A81-30 (MTH+) - A79-8 (MTH+) Power switch off Below 1 Ω
      A81-29 (MTH-) - A79-19 (MTH-) Power switch off Below 1 Ω
      A81-33 (REQ+) - A79-26 (REQ+) Power switch off Below 1 Ω
      A81-32 (REQ-) - A79-37 (REQ-) Power switch off Below 1 Ω
      A81-21 (CLK+) - A79-7 (CLK+) Power switch off Below 1 Ω
      A81-20 (CLK-) - A79-18 (CLK-) Power switch off Below 1 Ω
      Standard Resistance (Check for short)
      Tester Connection Switch Condition Specified Condition
      A81-24 (HTM+) or A79-9 (HTM+) - Body ground and other terminals Power switch off 10 kΩ or higher
      A81-25 (HTM-) or A79-20 (HTM-) - Body ground and other terminals Power switch off 10 kΩ or higher
      A81-30 (MTH+) or A79-8 (MTH+) - Body ground and other terminals Power switch off 10 kΩ or higher
      A81-29 (MTH-) or A79-19 (MTH-) - Body ground and other terminals Power switch off 10 kΩ or higher
      A81-33 (REQ+) or A79-26 (REQ+) - Body ground and other terminals Power switch off 10 kΩ or higher
      A81-32 (REQ-) or A79-37 (REQ-) - Body ground and other terminals Power switch off 10 kΩ or higher
      A81-21 (CLK+) or A79-7 (CLK+) - Body ground and other terminals Power switch off 10 kΩ or higher
      A81-20 (CLK-) or A79-18 (CLK-) - Body ground and other terminals Power switch off 10 kΩ or higher

    6. Turn the power switch on (IG).

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      A81-24 (HTM+) or A79-9 (HTM+) - Body ground Power switch on (IG) Below 1 V
      A81-25 (HTM-) or A79-20 (HTM-) - Body ground Power switch on (IG) Below 1 V
      A81-30 (MTH+) or A79-8 (MTH+) - Body ground Power switch on (IG) Below 1 V
      A81-29 (MTH-) or A79-19 (MTH-) - Body ground Power switch on (IG) Below 1 V
      A81-33 (REQ+) or A79-26 (REQ+) - Body ground Power switch on (IG) Below 1 V
      A81-32 (REQ-) or A79-37 (REQ-) - Body ground Power switch on (IG) Below 1 V
      A81-21 (CLK+) or A79-7 (CLK+) - Body ground Power switch on (IG) Below 1 V
      A81-20 (CLK-) or A79-18 (CLK-) - Body ground Power switch on (IG) Below 1 V

      Note

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

    8. Turn the power switch off.

    9. Connect the power management control ECU connector.

    10. Connect the inverter with converter assembly connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  11. CHECK POWER MANAGEMENT CONTROL ECU


    1. Disconnect connector A81 from the power management control ECU.

    2. A01NDFFE03
      Text in Illustration
      *1

      Component without harness connected

      (Power Management Control ECU)

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      A81-24 (HTM+) - A81-25 (HTM-) Power switch off 109 to 131Ω
      A81-30 (MTH+) - A81-29 (MTH-) Power switch off 109 to 131Ω
      A81-33 (REQ+) - A81-32 (REQ-) Power switch off 109 to 131Ω
      A81-21 (CLK+) - A81-20 (CLK-) Power switch off 109 to 131Ω
      Result
      Result Proceed to
      OK A
      NG (for LHD) B
      NG (for RHD) C

    3. Connect the power management control ECU connector.


    B

    REPLACE POWER MANAGEMENT CONTROL ECU (for LHD) Click here

    C

    REPLACE POWER MANAGEMENT CONTROL ECU (for RHD) Click here

    A

  12. CHECK CONNECTOR CONNECTION CONDITION (REAR MOTOR RESOLVER CONNECTOR)


    1. A01ND2X

      Check the connection of the rear motor resolver connector.

      OK
      The connector is connected securely and there are no contact problems.

    NG

    CONNECT SECURELY

    OK

    REPLACE INVERTER WITH CONVERTER ASSEMBLY Click here

  13. CHECK CONNECTOR CONNECTION CONDITION (REAR MOTOR RESOLVER CONNECTOR)


    1. A01ND2X

      Check the connection of the rear motor resolver connector.

      OK
      The connector is connected securely and there are no contact problems.

    NG

    CONNECT SECURELY

    OK

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


    1. Disconnect the low voltage connector A79 from the inverter with converter assembly.

    2. A01NHYRE01
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Rear Motor Resolver)
      *2

      Front view of wire harness connector

      (to Inverter with Converter Assembly)

      Disconnect the rear motor resolver connector.

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

      Standard Resistance (Check for Open)
      Tester Connection Switch Condition Specified Condition
      g11-1 (RRF) - A79-34 (RRF) Power switch off Below 1 Ω
      g11-4 (RRFG) - A79-23 (RRFG) Power switch off Below 1 Ω
      g11-2 (RSN) - A79-33 (RSN) Power switch off Below 1 Ω
      g11-5 (RSNG) - A79-22 (RSNG) Power switch off Below 1 Ω
      g11-3 (RCS) - A79-32 (RCS) Power switch off Below 1 Ω
      g11-6 (RCSG) - A79-21 (RCSG) Power switch off Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Switch Condition Specified Condition
      g11-1 (RRF) or A79-34 (RRF) - Body ground and other terminals Power switch off 10 kΩ or higher
      g11-4 (RRFG) or A79-23 (RRFG) - Body ground and other terminals Power switch off 10 kΩ or higher
      g110-2 (RSN) or A79-33 (RSN) - Body ground and other terminals Power switch off 10 kΩ or higher
      g11-5 (RSNG) or A79-22 (RSNG) - Body ground and other terminals Power switch off 10 kΩ or higher
      g11-3 (RCS) or A79-32 (RCS) - Body ground and other terminals Power switch off 10 kΩ or higher
      g11-6 (RCSG) or A79-21 (RCSG) - Body ground and other terminals Power switch off 10 kΩ or higher

      Tech Tips

      The rear motor resolver is not available separately. If it requires replacement, replace the rear traction motor with transaxle assembly.

    4. Connect the rear motor resolver connector.

    5. Connect the inverter with converter assembly connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE REAR TRACTION MOTOR WITH TRANSAXLE ASSEMBLY Click here

  15. CHECK REAR TRACTION MOTOR WITH TRANSAXLE ASSEMBLY (REAR MOTOR CABLE 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. A01NE5V

      Check that the bolts for the rear motor cable are tightened to the specified torque, the rear motor cable is connected securely, and there are no contact problems.

      Specified Condition
      T=8.0 N*m{82 kgf*cm, 71 in.*lbf}

      Note

      Make sure that the tightening torque of the bolts is between 6.4 and 9.6 N*m (65 and 98 kgf*cm, 57 and 85 in.*lbf).

    3. Disconnect the rear motor cable from the rear traction motor with transaxle assembly.

    4. Check for arc marks at the bolts for the rear motor cable.

      Result
      Result Proceed to
      The terminals are connected securely and there are no contact problems. There are no arc marks. A
      The terminals are not connected securely and there is a contact problem. There are arc marks. B
      The terminals are not connected securely and there is a contact problem. There are no arc marks. C
      The terminals are connected securely and there are no contact problems. There are arc marks. B

    5. Connect the rear motor cable.


    B

    REPLACE MALFUNCTIONING PARTS

    C

    CONNECT SECURELY

    A

  16. CHECK NO.3 WIRE FRAME (REAR MOTOR CABLE)

    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. A01NE6E

      Remove the inverter terminal cover from the inverter with converter assembly.

    3. A01NEMY

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

    4. A01NE5V

      Disconnect the rear motor cable from the rear traction motor with transaxle assembly.

    5. A01NDPUE02
      Text in Illustration
      *1 Rear Motor Cable
      *2 Shielded Ground

      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 Switch Condition Specified Condition
      g4-3 (R-U) - Body ground and shielded ground Power switch off 10 MΩ or higher
      g4-2 (R-V) - Body ground and shielded ground Power switch off 10 MΩ or higher
      g4-1 (R-W) - Body ground and shielded ground Power switch off 10 MΩ or higher

      Note

      Wrap the terminals of three-phase AC cable with insulating tape to avoid them coming into contact with body ground.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      g4-3 (R-U) - g5-3 (R-U) Power switch off Below 1 Ω
      g4-2 (R-V) - g5-2 (R-V) Power switch off Below 1 Ω
      g4-1 (R-W) - g5-1 (R-W) Power switch off Below 1 Ω
      g4-3 (R-U) - g5-2 (R-V) Power switch off 10 kΩ or higher
      g4-2 (R-V) - g5-1 (R-W) Power switch off 10 kΩ or higher
      g4-1 (R-W) - g5-3 (R-U) Power switch off 10 kΩ or higher

    7. Connect the rear motor cable to the rear traction motor with transaxle assembly.

    8. Connect the rear motor cable to the inverter with converter assembly.

    9. Install the inverter terminal cover.


    NG

    REPLACE NO.3 WIRE FRAME Click here

    OK

  17. CHECK EXTENSION WIRE 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 rear traction motor with transaxle assembly.

    3. Remove the extension wire assembly from the rear traction motor with transaxle assembly.

    4. A01NFEFE03
      Text in Illustration
      *1 Extension Wire Assembly
      *2 Shielded Ground

      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 Switch Condition Specified Condition
      R-U - Body ground and shielded ground Power switch off 10 MΩ or higher
      R-V - Body ground and shielded ground Power switch off 10 MΩ or higher
      R-W - Body ground and shielded ground Power switch off 10 MΩ or higher

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      R-U - R-U Power switch off Below 1 Ω
      R-V - R-V Power switch off Below 1 Ω
      R-W - R-W Power switch off Below 1 Ω
      R-U - R-V Power switch off 10 kΩ or higher
      R-V - R-W Power switch off 10 kΩ or higher
      R-W - R-U Power switch off 10 kΩ or higher

    6. Install the extension wire.

    7. Install the rear traction motor with transaxle assembly.


    NG

    REPLACE EXTENSION WIRE ASSEMBLY Click here

    OK

    REPLACE REAR TRACTION MOTOR WITH TRANSAXLE ASSEMBLY Click here

  18. CHECK HARNESS AND CONNECTOR (INVERTER WITH CONVERTER ASSEMBLY - PCU FUSE)

    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 connector A79 from the inverter with converter assembly.

    3. A01NFV3E02
      Text in Illustration
      *1

      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
      Tester Connection Switch Condition Specified Condition
      A79-30 (+B) - Body ground Power switch off 10 kΩor higher
      A79-31 (+B2) - Body ground Power switch off 10 kΩor higher

    4. Connect the inverter with converter assembly connector.


    NG

    Click here

    OK

  19. REPLACE INVERTER WITH CONVERTER ASSEMBLY


    1. Replace the inverter with converter assembly Click here.


    NEXT

    REPLACE FUSE (PCU)

  20. REPAIR OR REPLACE HARNESS OR CONNECTOR


    1. Repair or replace the wire harness or connector.


    NEXT

    REPLACE FUSE (PCU)