HYBRID CONTROL SYSTEM, Diagnostic DTC:P0868-866, P0868-894

DTC Code DTC Name
P0868-866 Transmission Fluid Pressure Low
P0868-894 Transmission Fluid Pressure Low

DESCRIPTION

For a description of the hybrid vehicle transmission assembly, Click here.

DTC No. INF Code DTC Detection Condition Trouble Area
P0868 866 Difference between the value of SP2 rotation speed multiplied by the gear ratio of the 2-stage motor speed reduction planetary gear unit and the MG2 rotation speed exceeds a specified value continuously for a specified time (at a vehicle speed of 35 km/h (22 mph) or more).

  • Wire harness or connector

  • Hybrid vehicle transmission assembly

  • Oil with motor pump assembly

  • Hybrid vehicle control ECU

  • Fusible link block assembly

  • Relay (OIL PMP)

  • Inverter with converter assembly
894 Difference between the value of SP2 rotation speed multiplied by the gear ratio of the 2-stage motor speed reduction planetary gear unit and the MG2 rotation speed exceeds a specified value continuously for a specified time (at a vehicle speed below 35 km/h (22 mph)).

WIRING DIAGRAM


CAUTION / NOTICE / HINT

Tech Tips

Slightly shake the wire harness and connector vertically and horizontally, and check that the malfunction does not occur Click here.

PROCEDURE


  1. CHECK DTC OUTPUT (HV)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the power switch on (IG).

    3. Select the following menu items: Powertrain / Hybrid Control / Trouble Codes.

    4. Read the DTCs and Freeze Frame Data, and then compare the Freeze Frame Data values of "Motor(MG2) Revolution" and "Motor(MG2) Revolution by Rotation Angle Sensor".

      Tech Tips

      The "Freeze Frame Data Example" below is only one example of a malfunction condition and a determination should not be made based on this alone.

      Freeze Frame Data Example
      Item Measured Value Unit
      Motor(MG2) Revolution 4000 rpm
      Motor(MG2) Revolution by Rotation Angle Sensor 8000 rpm

      • 4000 rpm - 8000 rpm = -4000 rpm

      • When normal, "Motor(MG2) Revolution" and "Motor(MG2) Revolution by Rotation Angle Sensor" display approximately the same values.

      Result
      Result Proceed to
      P0868-866 or P0868-894 only is output. Result of "Motor(MG2) Revolution" - "Motor(MG2) Revolution by Rotation Angle Sensor" is larger than 2000 rpm or below -2000 rpm A
      Other than above B
      Any of the following DTCs are also output. C
      DTC No. Relevant Diagnosis
      P0722-854 Output Speed Sensor Circuit No Signal
      P0731-873 Gear 1 Incorrect Ratio
      P0732-869 Gear 2 Incorrect Ratio
      P0748-850 Pressure Control Solenoid "A" Electrical (Shift Solenoid Valve SL1)
      P0778-851 Pressure Control Solenoid "B" Electrical (Shift Solenoid Valve SL2)
      P0867-880 Transmission Fluid Pressure
      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

    B

    CHECK CONNECTOR CONNECTION CONDITION (HYBRID VEHICLE CONTROL ECU CONNECTOR) Click here

    C

    GO TO DTC CHART Click here

    A

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

    Note

    Before disconnecting the connector, confirm that it is properly connected by checking that the locking claws are engaged and that the connector cannot be pulled out.


    1. 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

  3. CHECK CONNECTOR CONNECTION CONDITION (ENGINE ROOM NO. 2 RELAY BLOCK CONNECTOR)


    1. A000TVR

      Check the connection condition of the engine room No. 2 relay block connector and the contact pressure of each terminal. Check the terminals for deformation, and check the connector for water ingress and foreign matter.

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

      Note

      If the terminals connect poorly, are damaged, or contain water or foreign matter, repair or replace the wire harness or connector.


    NG

    CONNECT SECURELY

    OK

  4. CHECK CONNECTOR CONNECTION CONDITION (MOTOR RESOLVER CONNECTOR)


    1. 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.

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

      Note

      If the terminals connect poorly, are damaged, or contain water or foreign matter, repair or replace the wire harness or connector.


    NG

    CONNECT SECURELY

    OK

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

    CAUTION:

    Be sure to wear insulated gloves.


    1. A000UOIE02

      Turn the power switch off.

    2. Remove the service plug grip Click here.

      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.

    3. Disconnect the low voltage connector from the inverter with converter assembly.

    4. Turn the power switch on (IG).

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

      Standard voltage
      LHD
      Tester Connection Switch Condition Specified Condition
      A79-40 (MRF) - Body ground Power switch on (IG) Below 1 V
      A79-29 (MRFG) - Body ground Power switch on (IG) Below 1 V
      A79-39 (MSN) - Body ground Power switch on (IG) Below 1 V
      A79-28 (MSNG) - Body ground Power switch on (IG) Below 1 V
      A79-38 (MCS) - Body ground Power switch on (IG) Below 1 V
      A79-27 (MCSG) - Body ground Power switch on (IG) Below 1 V
      RHD
      Tester Connection Switch Condition Specified Condition
      A88-40 (MRF) - Body ground Power switch on (IG) Below 1 V
      A88-29 (MRFG) - Body ground Power switch on (IG) Below 1 V
      A88-39 (MSN) - Body ground Power switch on (IG) Below 1 V
      A88-28 (MSNG) - Body ground Power switch on (IG) Below 1 V
      A88-38 (MCS) - Body ground Power switch on (IG) Below 1 V
      A88-27 (MCSG) - 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.

      Tech Tips

      Slightly shake the wire harness and connector vertically and horizontally, and check that the malfunction does not occur Click here.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. CHECK MOTOR RESOLVER


    1. Turn the power switch off.

    2. A000UOIE02

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

      Standard resistance (Check for open)
      LHD
      Tester Connection Switch Condition Specified Condition
      A79-40 (MRF) - A79-29 (MRFG) Power switch off 4.5 to 16.8 Ω
      A79-39 (MSN) - A79-28 (MSNG) Power switch off 9.3 to 27.8 Ω
      A79-38 (MCS) - A79-27 (MCSG) Power switch off 12.4 to 30.7 Ω
      RHD
      Tester Connection Switch Condition Specified Condition
      A88-40 (MRF) - A88-29 (MRFG) Power switch off 4.5 to 16.8 Ω
      A88-39 (MSN) - A88-28 (MSNG) Power switch off 9.3 to 27.8 Ω
      A88-38 (MCS) - A88-27 (MCSG) Power switch off 12.4 to 30.7 Ω
      Standard resistance (Check for short)
      LHD
      Tester Connection Switch Condition Specified Condition
      A79-40 (MRF) or A79-29 (MRFG) - Body ground and other terminals Power switch off 1 MΩ or higher
      A79-39 (MSN) or A79-28 (MSNG) - Body ground and other terminals Power switch off 1 MΩ or higher
      A79-38 (MCS) or A79-27 (MCSG) - Body ground and other terminals Power switch off 1 MΩ or higher
      RHD
      Tester Connection Switch Condition Specified Condition
      A88-40 (MRF) or A88-29 (MRFG) - Body ground and other terminals Power switch off 1 MΩ or higher
      A88-39 (MSN) or A88-28 (MSNG) - Body ground and other terminals Power switch off 1 MΩ or higher
      A88-38 (MCS) or A88-27 (MCSG) - Body ground and other terminals Power switch off 1 MΩ or higher

      Tech Tips

      Slightly shake the wire harness and connector vertically and horizontally, and check that the malfunction does not occur Click here.

      Result
      Result Proceed to
      NG A
      OK (for LHD) B
      OK (for RHD) C

    B

    REPLACE INVERTER WITH CONVERTER ASSEMBLY Click here

    C

    REPLACE INVERTER WITH CONVERTER ASSEMBLY Click here

    A

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


    1. A000TEFE01

      Disconnect the motor resolver connector.

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

      Standard resistance (Check for open)
      LHD
      Tester Connection Switch Condition Specified Condition
      A79-40 (MRF) - E63-1 (MRF) Power switch off Below 1 Ω
      A79-29 (MRFG) - E63-5 (MRFG) Power switch off Below 1 Ω
      A79-39 (MSN) - E63-2 (MSN) Power switch off Below 1 Ω
      A79-28 (MSNG) - E63-6 (MSNG) Power switch off Below 1 Ω
      A79-38 (MCS) - E63-3 (MCS) Power switch off Below 1 Ω
      A79-27 (MCSG) - E63-7 (MCSG) Power switch off Below 1 Ω
      RHD
      Tester Connection Switch Condition Specified Condition
      A88-40 (MRF) - E63-1 (MRF) Power switch off Below 1 Ω
      A88-29 (MRFG) - E63-5 (MRFG) Power switch off Below 1 Ω
      A88-39 (MSN) - E63-2 (MSN) Power switch off Below 1 Ω
      A88-28 (MSNG) - E63-6 (MSNG) Power switch off Below 1 Ω
      A88-38 (MCS) - E63-3 (MCS) Power switch off Below 1 Ω
      A88-27 (MCSG) - E63-7 (MCSG) Power switch off Below 1 Ω
      Standard resistance (Check for short)
      LHD
      Tester Connection Switch Condition Specified Condition
      A79-40 (MRF) or E63-1 (MRF) - Body ground and other terminals Power switch off 10 kΩ or higher
      A79-29 (MRFG) or E63-5 (MRFG) - Body ground and other terminals Power switch off 10 kΩ or higher
      A79-39 (MSN) or E63-2 (MSN) - Body ground and other terminals Power switch off 10 kΩ or higher
      A79-28 (MSNG) or E63-6 (MSNG) - Body ground and other terminals Power switch off 10 kΩ or higher
      A79-38 (MCS) or E63-3 (MCS) - Body ground and other terminals Power switch off 10 kΩ or higher
      A79-27 (MCSG) or E63-7 (MCSG) - Body ground and other terminals Power switch off 10 kΩ or higher
      RHD
      Tester Connection Switch Condition Specified Condition
      A88-40 (MRF) or E63-1 (MRF) - Body ground and other terminals Power switch off 10 kΩ or higher
      A88-29 (MRFG) or E63-5 (MRFG) - Body ground and other terminals Power switch off 10 kΩ or higher
      A88-39 (MSN) or E63-2 (MSN) - Body ground and other terminals Power switch off 10 kΩ or higher
      A88-28 (MSNG) or E63-6 (MSNG) - Body ground and other terminals Power switch off 10 kΩ or higher
      A88-38 (MCS) or E63-3 (MCS) - Body ground and other terminals Power switch off 10 kΩ or higher
      A88-27 (MCSG) or E63-7 (MCSG) - Body ground and other terminals Power switch off 10 kΩ or higher

      Tech Tips


      • Slightly shake the wire harness and connector vertically and horizontally, and check that the malfunction does not occur Click here.

      • The motor resolver is not available separately. If it requires replacement, replace the hybrid vehicle transmission assembly.


    OK

    REPLACE HYBRID VEHICLE TRANSMISSION ASSEMBLY Click here

    NG

  8. CHECK HARNESS AND CONNECTOR (INVERTER WITH CONVERTER ASSEMBLY - ENGINE ROOM NO. 2 RELAY BLOCK)


    1. A000WZIE02

      Disconnect the engine room No. 2 relay block connector.

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

      Standard resistance (Check for open)
      LHD
      Tester Connection Switch Condition Specified Condition
      16 - A79-40 (MRF) Power switch off Below 1 Ω
      17 - A79-29 (MRFG) Power switch off Below 1 Ω
      18 - A79-39 (MSN) Power switch off Below 1 Ω
      19 - A79-28 (MSNG) Power switch off Below 1 Ω
      20 - A79-38 (MCS) Power switch off Below 1 Ω
      21 - A79-27 (MCSG) Power switch off Below 1 Ω
      RHD
      Tester Connection Switch Condition Specified Condition
      16 - A88-40 (MRF) Power switch off Below 1 Ω
      17 - A88-29 (MRFG) Power switch off Below 1 Ω
      18 - A88-39 (MSN) Power switch off Below 1 Ω
      19 - A88-28 (MSNG) Power switch off Below 1 Ω
      20 - A88-38 (MCS) Power switch off Below 1 Ω
      21 - A88-27 (MCSG) Power switch off Below 1 Ω
      Standard resistance (Check for short)
      LHD
      Tester Connection Switch Condition Specified Condition
      16 or A79-40 (MRF) - Body ground and other terminals Power switch off 1 MΩ or higher
      17 or A79-29 (MRFG) - Body ground and other terminals Power switch off 1 MΩ or higher
      18 or A79-39 (MSN) - Body ground and other terminals Power switch off 1 MΩ or higher
      19 or A79-28 (MSNG) - Body ground and other terminals Power switch off 1 MΩ or higher
      20 or A79-38 (MCS) - Body ground and other terminals Power switch off 1 MΩ or higher
      21 or A79-27 (MCSG) - Body ground and other terminals Power switch off 1 MΩ or higher
      RHD
      Tester Connection Switch Condition Specified Condition
      16 or A88-40 (MRF) - Body ground and other terminals Power switch off 1 MΩ or higher
      17 or A88-29 (MRFG) - Body ground and other terminals Power switch off 1 MΩ or higher
      18 or A88-39 (MSN) - Body ground and other terminals Power switch off 1 MΩ or higher
      19 or A88-28 (MSNG) - Body ground and other terminals Power switch off 1 MΩ or higher
      20 or A88-38 (MCS) - Body ground and other terminals Power switch off 1 MΩ or higher
      21 or A88-27 (MCSG) - Body ground and other terminals Power switch off 1 MΩ or higher

      Tech Tips

      Slightly shake the wire harness and connector vertically and horizontally, and check that the malfunction does not occur Click here.


    OK

    REPAIR OR REPLACE HARNESS OR CONNECTOR (ENGINE ROOM NO. 2 RELAY BLOCK - MOTOR RESOLVER)

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (INVERTER WITH CONVERTER ASSEMBLY - ENGINE ROOM NO. 2 RELAY BLOCK)

  9. CHECK CONNECTOR CONNECTION CONDITION (HYBRID VEHICLE CONTROL ECU CONNECTOR)


    1. Turn the power switch off.

    2. Check the connections of the hybrid vehicle control ECU connectors.

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

    NG

    CONNECT SECURELY

    OK

  10. CHECK CONNECTOR CONNECTION CONDITION (TRANSMISSION WIRE CONNECTOR)


    1. Check the connection of the transmission wire connector.

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

    NG

    CONNECT SECURELY

    OK

  11. CHECK CONNECTOR CONNECTION CONDITION (OIL PUMP MOTOR CONTROLLER CONNECTOR)

    Note

    Before disconnecting the connectors, confirm that they are properly connected by checking that the locking claws are engaged and that the connectors cannot be pulled out.


    1. A000V7FE04
      *1 Oil Pump Motor Controller

      Check the connections of the oil pump motor controller connectors.

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

      Tech Tips

      For each connector, when connecting it, 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

  12. CHECK FUSIBLE LINK BLOCK ASSEMBLY (OIL PMP)


    1. Check if there is an open circuit in the fusible link (OIL PMP) in the engine room No. 1 junction block.

      A000W5ME02
      *1 Engine Room No. 1 Junction Block
      *2 for LHD:
      *3 for RHD:
      *4 OIL PMP
      OK
      There is no open circuit in the fusible link (OIL PMP).

    NG

    REPLACE FUSIBLE LINK BLOCK ASSEMBLY

    OK

  13. CHECK HYBRID VEHICLE TRANSMISSION ASSEMBLY (SL1 SOLENOID VALVE, SL2 SOLENOID VALVE AND SP SOLENOID VALVE)


    1. Turn the power switch off.

    2. A000Y6VE02
      *1 Rear view of wire harness connector: (to Hybrid Vehicle Control ECU)
      *2 SP

      Disconnect connector E58 from the hybrid vehicle control ECU.

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

      Standard resistance
      Tester Connection Condition Specified Condition
      E58-8 (SP) - Body ground Power switch off 11 to 15 Ω
      E58-3 (SL1+) - E58-2 (SL1-)

      20°C (68° F)

      Power switch off

      		 5.0 to 5.6 Ω
      E58-11 (SL2+) - E58-10 (SL2-)

      20°C (68° F)

      Power switch off

      		 5.0 to 5.6 Ω

    NG

    CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU - TRANSMISSION WIRE) Click here

    OK

  14. CHECK RELAY (OIL PMP)


    1. A000WWVE01
      *1 Engine Room No. 5 Relay Block
      *2 OIL PMP Relay

      Remove the OIL PMP relay from the engine room No. 5 relay block.

    2. A000WPYE01
      *1 OIL PMP Relay

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

      Standard resistance
      Tester Connection Switch Condition Specified Condition
      1 - 2 Always 151 to 203 Ω
      3 - 5 Auxiliary battery voltage is not applied between terminals 1 and 2 10 kΩ or higher
      Auxiliary battery voltage is applied between terminals 1 and 2 Below 1 Ω

    NG

    REPLACE RELAY (OIL PMP) Click here

    OK

  15. CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU - OIL PUMP MOTOR CONTROLLER)


    1. A000WKWE01
      *1 Rear view of wire harness connector: (to Hybrid Vehicle Control ECU)
      *2 Front view of wire harness connector: (to Oil Pump Motor Controller)

      Turn the power switch off.

    2. Disconnect connector A76 from the hybrid vehicle control ECU.

    3. Disconnect connector A80 from the oil pump motor controller.

    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
      A76-32 (OPM1) - Body ground Power switch on (IG) Below 1 V
      A76-33 (OPST) - Body ground Power switch on (IG) Below 1 V

      Note

      Turning the power switch on (IG) with the hybrid vehicle control ECU connector and oil pump motor controller connector disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.

    6. Turn the power switch off.

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

      Standard resistance (Check for open)
      Tester Connection Switch Condition Specified Condition
      A76-32 (OPM1) - A80-6 (SI) Power switch off Below 1 Ω
      A76-33 (OPST) - A80-7 (OPST) Power switch off Below 1 Ω
      Standard resistance (Check for short)
      Tester Connection Switch Condition Specified Condition
      A76-32 (OPM1) - Body ground and other terminals Power switch off 10 kΩ or higher
      A76-33 (OPST) - Body ground and other terminals Power switch off 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  16. CHECK OIL WITH MOTOR PUMP ASSEMBLY


    1. A000VJIE04

      Disconnect the connectors from the oil pump motor controller.

    2. Turn the power switch on (IG).

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

      Standard voltage
      Tester Connection Switch Condition Specified Condition
      W - Body ground Power switch on (IG) Below 1 V
      U - Body ground Power switch on (IG) Below 1 V
      V - Body ground Power switch on (IG) Below 1 V
      OHW - Body ground Power switch on (IG) Below 1 V
      OHV - Body ground Power switch on (IG) Below 1 V
      OHU - Body ground Power switch on (IG) Below 1 V
      OIGH - Body ground Power switch on (IG) Below 1 V
      OHG - Body ground Power switch on (IG) Below 1 V

      Note

      Turning the power switch on (IG) with the oil pump motor controller connectors disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.

    4. Turn the power switch off.

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

      Standard resistance (Check for open)
      Tester Connection Switch Condition Specified Condition
      W - U Power switch off Below 1 Ω
      W - V Power switch off Below 1 Ω
      Standard resistance (Check for short)
      Tester Connection Switch Condition Specified Condition
      W - Body ground Power switch off 10 kΩ or higher
      U - Body ground Power switch off 10 kΩ or higher
      V - Body ground Power switch off 10 kΩ or higher
      OHW - Body ground Power switch off 10 kΩ or higher
      OHV - Body ground Power switch off 10 kΩ or higher
      OHU - Body ground Power switch off 10 kΩ or higher
      OIGH - Body ground Power switch off 10 kΩ or higher
      OHG - Body ground Power switch off 10 kΩ or higher

    NG

    REPLACE OIL WITH MOTOR PUMP ASSEMBLY Click here

    OK

  17. CHECK OIL PUMP MOTOR CONTROLLER (POWER SOURCE CIRCUIT)


    1. Turn the power switch off.

    2. Disconnect connector A80 from the oil pump motor controller.

    3. A000WWVE01
      *1 Engine Room No. 5 Relay Block
      *2 OIL PMP Relay

      Install the OIL PMP relay to the engine room No. 5 relay block.

    4. Turn the power switch on (IG).

    5. A000WQXE01
      *1 Front view of wire harness connector: (to Oil Pump Motor Controller)

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

      Standard voltage
      Tester Connection Switch Condition Specified Condition
      A80-5 (+B) - Body ground Power switch on (IG) 11 to 14 V

    6. Turn the power switch off.

    7. A000WWVE01
      *1 Engine Room No. 5 Relay Block
      *2 OIL PMP Relay

      Remove the OIL PMP relay from the engine room No. 5 relay block.

    8. A000X13E01
      *1 Engine Room No. 5 Relay Block
      *2 OIL PMP Relay
      *3 Front view of wire harness connector: (to Oil Pump Motor Controller)

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

      Standard resistance (Check for open)
      Tester Connection Switch Condition Specified Condition
      Engine room No. 5 relay block OIL PMP Relay terminal 3 - A80-5 (+B) Power switch off Below 1 Ω
      Engine room No. 5 relay block OIL PMP Relay terminal 2 - Body ground Power switch off Below 1 Ω
      Standard resistance (Check for short)
      Tester Connection Switch Condition Specified Condition
      Engine room No. 5 relay block OIL PMP Relay terminal 3 - Body ground Power switch off 10 kΩ or higher
    9. A000VLEE01
      *1 Rear view of wire harness connector: (to Hybrid Vehicle Control ECU)
      *2 Engine Room No. 5 Relay Block
      *3 OIL PMP Relay

      Disconnect connector A76 from the hybrid vehicle control ECU.

    10. Turn the power switch off.

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

      Standard resistance (Check for open)
      Tester Connection Switch Condition Specified Condition
      A76-24 (OPM2) - Engine room No. 5 relay block OIL PMP Relay terminal 1 Power switch off Below 1 Ω
      Standard resistance (Check for short)
      Tester Connection Switch Condition Specified Condition
      A76-24 (OPM2) or Engine room No. 5 relay block OIL PMP Relay terminal 1 - Body ground Power switch off 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  18. CHECK TRANSMISSION REVOLUTION SENSOR (SP2)


    1. A000TGSE02
      *1 Rear view of wire harness connector: (to Hybrid Vehicle Control ECU)

      Disconnect connector E58 from the hybrid vehicle control ECU.

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

      Standard resistance
      Tester Connection Condition Specified Condition
      E58-29 (SP2+) - E58-28 (SP2-) 20°C (68° F) 560 to 680 Ω

    NG

    CHECK CONNECTOR CONNECTION CONDITION (TRANSMISSION REVOLUTION SENSOR (SP2) CONNECTOR) Click here

    OK

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

    Note

    Before disconnecting the connector, confirm that it is properly connected by checking that the locking claws are engaged and that the connector cannot be pulled out.


    1. 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

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

    CAUTION:

    Be sure to wear insulated gloves.


    1. A000UOIE02

      Turn the power switch off.

    2. Remove the service plug grip Click here.

      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.

    3. Disconnect the low voltage connector from the inverter with converter assembly.

    4. Turn the power switch on (IG).

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

      Standard voltage
      LHD
      Tester Connection Switch Condition Specified Condition
      A79-40 (MRF) - Body ground Power switch on (IG) Below 1 V
      A79-29 (MRFG) - Body ground Power switch on (IG) Below 1 V
      A79-39 (MSN) - Body ground Power switch on (IG) Below 1 V
      A79-28 (MSNG) - Body ground Power switch on (IG) Below 1 V
      A79-38 (MCS) - Body ground Power switch on (IG) Below 1 V
      A79-27 (MCSG) - Body ground Power switch on (IG) Below 1 V
      RHD
      Tester Connection Switch Condition Specified Condition
      A88-40 (MRF) - Body ground Power switch on (IG) Below 1 V
      A88-29 (MRFG) - Body ground Power switch on (IG) Below 1 V
      A88-39 (MSN) - Body ground Power switch on (IG) Below 1 V
      A88-28 (MSNG) - Body ground Power switch on (IG) Below 1 V
      A88-38 (MCS) - Body ground Power switch on (IG) Below 1 V
      A88-27 (MCSG) - 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.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  21. CHECK MOTOR RESOLVER


    1. Turn the power switch off.

    2. A000UOIE02

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

      Standard resistance (Check for open)
      LHD
      Tester Connection Switch Condition Specified Condition
      A79-40 (MRF) - A79-29 (MRFG) Power switch off 4.5 to 16.8 Ω
      A79-39 (MSN) - A79-28 (MSNG) Power switch off 9.3 to 27.8 Ω
      A79-38 (MCS) - A79-27 (MCSG) Power switch off 12.4 to 30.7 Ω
      RHD
      Tester Connection Switch Condition Specified Condition
      A88-40 (MRF) - A88-29 (MRFG) Power switch off 4.5 to 16.8 Ω
      A88-39 (MSN) - A88-28 (MSNG) Power switch off 9.3 to 27.8 Ω
      A88-38 (MCS) - A88-27 (MCSG) Power switch off 12.4 to 30.7 Ω
      Standard resistance (Check for short)
      LHD
      Tester Connection Switch Condition Specified Condition
      A79-40 (MRF) or A79-29 (MRFG) - Body ground and other terminals Power switch off 1 MΩ or higher
      A79-39 (MSN) or A79-28 (MSNG) - Body ground and other terminals Power switch off 1 MΩ or higher
      A79-38 (MCS) or A79-27 (MCSG) - Body ground and other terminals Power switch off 1 MΩ or higher
      RHD
      Tester Connection Switch Condition Specified Condition
      A88-40 (MRF) or A88-29 (MRFG) - Body ground and other terminals Power switch off 1 MΩ or higher
      A88-39 (MSN) or A88-28 (MSNG) - Body ground and other terminals Power switch off 1 MΩ or higher
      A88-38 (MCS) or A88-27 (MCSG) - Body ground and other terminals Power switch off 1 MΩ or higher

    NG

    CHECK CONNECTOR CONNECTION CONDITION (MOTOR RESOLVER CONNECTOR) Click here

    OK

  22. CLEAR DTC


    1. Select the following menu items: Powertrain / Hybrid Control / Trouble Codes.

    2. Read and record the DTCs and freeze frame data.

    3. Select the following menu items: Powertrain / Hybrid Control / Trouble Codes.

    4. Clear DTCs and freeze frame data.


    NEXT

  23. SIMULATION TEST


    1. Turn the power switch on (READY).

    2. Select the following menu items: Powertrain / Hybrid Control / Motor (MG2) Revolution, Output Shaft Speed, Output Shaft Speed Calculated by Wheel Speed.

    3. Perform a stall test and road test, and read the data list.

      A000ZSKE01

      Note


      • Before inspection, sufficiently warm up the engine.

      • Make sure to perform this procedure after the engine has been inspected and adjusted.

      • Do not perform a stall test for 5 or more seconds.

      • Perform a stall test on an asphalt surface or other place with a high friction coefficient (μ) in order to prevent wheel spin.

      Tech Tips


      • When performing a road test, the vehicle speed should be 35 km/h (22 mph) or more.

      • Avoid sudden acceleration and deceleration during a road test.

      OK
      The "Motor (MG2) Revolution" value in the data list changes normally. The "Output Shaft Speed" and "Output Shaft Speed Calculated by Wheel Speed" values should be almost equal with a vehicle speed of 35 km/h (22 mph) or more.

    NG

    REPLACE HYBRID VEHICLE TRANSMISSION ASSEMBLY Click here

    OK

  24. CHECK FOR INTERMITTENT PROBLEMS


    1. Check for intermittent problems Click here.


    NG

    REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA

    OK

  25. CHECK FLUID LEAKS


    1. Check for fluid leaks from the hybrid vehicle transmission assembly.

      OK
      There are no fluid leaks.

    OK

    REPLACE HYBRID VEHICLE CONTROL ECU Click here

    NG

    REPAIR OR REPLACE HYBRID VEHICLE TRANSMISSION ASSEMBLY Click here

  26. CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU - TRANSMISSION WIRE)


    1. A000XHIE02
      *1 Front view of wire harness connector: (to Transmission Wire)
      *2 SP
      *3 Rear view of wire harness connector: (to Hybrid Vehicle Control ECU)

      Disconnect the transmission wire connector.

    2. Turn the power switch on (IG).

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

      Standard voltage
      Tester Connection Switch Condition Specified Condition
      E58-8 (SP) - Body ground Power switch on (IG) Below 1 V
      E58-2 (SL1-) - Body ground Power switch on (IG) Below 1 V
      E58-3 (SL1+) - Body ground Power switch on (IG) Below 1 V
      E58-10 (SL2-) - Body ground Power switch on (IG) Below 1 V
      E58-11 (SL2+) - Body ground Power switch on (IG) Below 1 V

      Note

      Turning the power switch on (IG) with the hybrid vehicle control ECU connector disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.

    4. Turn the power switch off.

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

      Standard resistance (Check for open)
      Tester Connection Switch Condition Specified Condition
      E58-8 (SP) - E64-4 (SP) Power switch off Below 1 Ω
      E58-2 (SL1-) - E64-13 (SL1-) Power switch off Below 1 Ω
      E58-3 (SL1+) - E64-6 (SL1+) Power switch off Below 1 Ω
      E58-10 (SL2-) - E64-12 (SL2-) Power switch off Below 1 Ω
      E58-11 (SL2+) - E64-5 (SL2+) Power switch off Below 1 Ω
      Standard resistance (Check for short)
      Tester Connection Switch Condition Specified Condition
      E58-8 (SP) or E64-4 (SP) - Body ground and other terminals Power switch off 10 kΩ or higher
      E58-2 (SL1-) or E64-13 (SL1-) - Body ground and other terminals Power switch off 10 kΩ or higher
      E58-3 (SL1+) or E64-6 (SL1+) - Body ground and other terminals Power switch off 10 kΩ or higher
      E58-10 (SL2-) or E64-12 (SL2-) - Body ground and other terminals Power switch off 10 kΩ or higher
      E58-11 (SL2+) or E64-5 (SL2+) - Body ground and other terminals Power switch off 10 kΩ or higher

    OK

    REPLACE HYBRID VEHICLE TRANSMISSION ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  27. CHECK CONNECTOR CONNECTION CONDITION (TRANSMISSION REVOLUTION SENSOR (SP2) CONNECTOR)


    1. Check the connection of the transmission revolution sensor (SP2) connector.

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

    NG

    CONNECT SECURELY

    OK

  28. CHECK HARNESS AND CONNECTOR (TRANSMISSION REVOLUTION SENSOR - HYBRID VEHICLE CONTROL ECU)


    1. A000W45E01
      *1 Front view of wire harness connector: (to Transmission Revolution Sensor)
      *2 Rear view of wire harness connector: (to Hybrid Vehicle Control ECU)

      Disconnect the transmission revolution sensor (SP2) connector.

    2. Turn the power switch on (IG).

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

      Standard voltage
      Tester Connection Switch Condition Specified Condition
      E58-28 (SP2-) - Body ground Power switch on (IG) Below 1 V
      E58-29 (SP2+) - Body ground Power switch on (IG) Below 1 V

      Note

      Turning the power switch on (IG) with the hybrid vehicle control ECU connector disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.

    4. Turn the power switch off.

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

      Standard resistance (Check for open)
      Tester Connection Switch Condition Specified Condition
      E58-28 (SP2-) - E66-1 Power switch off Below 1 Ω
      E58-29 (SP2+) - E66-2 Power switch off Below 1 Ω
      Standard resistance (Check for short)
      Tester Connection Switch Condition Specified Condition
      E58-28 (SP2-) or E66-1 - Body ground and other terminals Power switch off 10 kΩ or higher
      E58-29 (SP2+) or E66-2 - Body ground and other terminals Power switch off 10 kΩ or higher

    OK

    REPLACE HYBRID VEHICLE TRANSMISSION ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  29. CHECK CONNECTOR CONNECTION CONDITION (MOTOR RESOLVER CONNECTOR)


    1. 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.

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

      Note

      If the terminals connect poorly, are damaged, or contain water or foreign matter, repair or replace the wire harness or connector.


    NG

    CONNECT SECURELY

    OK

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


    1. A000TEFE01

      Disconnect the motor resolver connector.

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

      Standard resistance (Check for open)
      LHD
      Tester Connection Switch Condition Specified Condition
      A79-40 (MRF) - E63-1 (MRF) Power switch off Below 1 Ω
      A79-29 (MRFG) - E63-5 (MRFG) Power switch off Below 1 Ω
      A79-39 (MSN) - E63-2 (MSN) Power switch off Below 1 Ω
      A79-28 (MSNG) - E63-6 (MSNG) Power switch off Below 1 Ω
      A79-38 (MCS) - E63-3 (MCS) Power switch off Below 1 Ω
      A79-27 (MCSG) - E63-7 (MCSG) Power switch off Below 1 Ω
      RHD
      Tester Connection Switch Condition Specified Condition
      A88-40 (MRF) - E63-1 (MRF) Power switch off Below 1 Ω
      A88-29 (MRFG) - E63-5 (MRFG) Power switch off Below 1 Ω
      A88-39 (MSN) - E63-2 (MSN) Power switch off Below 1 Ω
      A88-28 (MSNG) - E63-6 (MSNG) Power switch off Below 1 Ω
      A88-38 (MCS) - E63-3 (MCS) Power switch off Below 1 Ω
      A88-27 (MCSG) - E63-7 (MCSG) Power switch off Below 1 Ω
      Standard resistance (Check for short)
      LHD
      Tester Connection Switch Condition Specified Condition
      A79-40 (MRF) or E63-1 (MRF) - Body ground and other terminals Power switch off 1 MΩ or higher
      A79-29 (MRFG) or E63-5 (MRFG) - Body ground and other terminals Power switch off 1 MΩ or higher
      A79-39 (MSN) or E63-2 (MSN) - Body ground and other terminals Power switch off 1 MΩ or higher
      A79-28 (MSNG) or E63-6 (MSNG) - Body ground and other terminals Power switch off 1 MΩ or higher
      A79-38 (MCS) or E63-3 (MCS) - Body ground and other terminals Power switch off 1 MΩ or higher
      A79-27 (MCSG) or E63-7 (MCSG) - Body ground and other terminals Power switch off 1 MΩ or higher
      RHD
      Tester Connection Switch Condition Specified Condition
      A88-40 (MRF) or E63-1 (MRF) - Body ground and other terminals Power switch off 1 MΩ or higher
      A88-29 (MRFG) or E63-5 (MRFG) - Body ground and other terminals Power switch off 1 MΩ or higher
      A88-39 (MSN) or E63-2 (MSN) - Body ground and other terminals Power switch off 1 MΩ or higher
      A88-28 (MSNG) or E63-6 (MSNG) - Body ground and other terminals Power switch off 1 MΩ or higher
      A88-38 (MCS) or E63-3 (MCS) - Body ground and other terminals Power switch off 1 MΩ or higher
      A88-27 (MCSG) or E63-7 (MCSG) - Body ground and other terminals Power switch off 1 MΩ or higher

      Tech Tips

      The motor resolver is not available separately. If it requires replacement, replace the hybrid vehicle transmission assembly.


    OK

    REPLACE HYBRID VEHICLE TRANSMISSION ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR