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

Refer to the description for DTC P0731-871 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 24 mph (39 km/h) or more).

  • Wire harness or connector

  • Hybrid vehicle transmission assembly

  • Oil with motor pump assembly

  • Power management control ECU

  • Fusible link (OIL PMP)

  • OIL PMP Relay

  • 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 24 mph (39 km/h)).

WIRING DIAGRAM

Refer to the wiring diagram for DTC P0722-854 Click here.

Refer to the wiring diagram for DTC P0731-871 Click here.

Refer to the wiring diagram for DTC P0867-882 Click here.

Refer to the wiring diagram for DTC P1CAC-200 Click here.

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 (HYBRID CONTROL)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

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

    4. Read 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" for each time series.

      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 Time Series Unit
      -3 -2 -1 Detection Point 1
      (A) (B) (C) (D) (E)
      Motor(MG2) Revolution 4000 4000 4000 4000 4000 rpm
      Motor(MG2) Revolution by Rotation Angle Sensor 4000 4000 0 4000 8000 rpm

      • Time series (A): 4000 rpm - 4000 rpm = 0 rpm

      • Time series (B): 4000 rpm - 4000 rpm = 0 rpm

      • Time series (C): 4000 rpm - 0 rpm = 4000 rpm

      • Time series (D): 4000 rpm - 4000 rpm = 0 rpm

      • Time series (E): 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 for 1 or more time series 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

    5. Turn the power switch off.


    B

    CHECK CONNECTOR CONNECTION CONDITION (POWER MANAGEMENT CONTROL ECU CONNECTOR) Click here

    C

    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 the connector connections and contact pressure of the low voltage connectors of the inverter with converter assembly Click here.

      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.

      B002BBWE01
      Text in Illustration
      *A for LHD *B for RHD
      OK
      The connectors are connected securely and there are no contact pressure 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 (JUNCTION CONNECTOR)


    1. Check the connection of the junction connector Click here.

      OK
      The connector is connected securely and there are no contact problems.
      B002BUNE01
      Text in Illustration
      *A for LHD *B for RHD

    NG

    CONNECT SECURELY

    OK

  4. CHECK CONNECTOR CONNECTION CONDITION (MOTOR RESOLVER CONNECTOR)


    1. B002B4I

      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 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. 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 connector from the inverter with converter assembly.

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

    4. Turn the power switch on (IG).

    5. B002B4ZE02
      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 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.

    6. Turn the power switch off.

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

    8. Connect the inverter with converter assembly connector.


    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 connector from the inverter with converter assembly.

    3. B002B4ZE02
      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 6.0 to 12.0 Ω
      A38-39 (MSN) - A38-28 (MSNG) Power switch off 12.5 to 24.5 Ω
      A38-38 (MCS) - A38-27 (MCSG) Power switch off 12.5 to 24.5 Ω
      for RHD
      Tester Connection Switch Condition Specified Condition
      A74-40 (MRF) - A74-29 (MRFG) Power switch off 6.0 to 12.0 Ω
      A74-39 (MSN) - A74-28 (MSNG) Power switch off 12.5 to 24.5 Ω
      A74-38 (MCS) - A74-27 (MCSG) Power switch off 12.5 to 24.5 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 10 kΩ or higher
      A38-39 (MSN) or A38-28 (MSNG) - Body ground and other terminals Power switch off 10 kΩ or higher
      A38-38 (MCS) or A38-27 (MCSG) - Body ground and other terminals Power switch off 10 kΩ 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 10 kΩ or higher
      A74-39 (MSN) or A74-28 (MSNG) - Body ground and other terminals Power switch off 10 kΩ or higher
      A74-38 (MCS) or A74-27 (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.

    4. Connect the inverter with converter assembly connector.


    OK

    REPLACE INVERTER WITH CONVERTER ASSEMBLY Click here

    NG

  7. 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 connector from the inverter with converter assembly.

    3. B002BTCE02
      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)

      Disconnect the motor resolver connector.

    4. 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
      F51-1 (MRF) - A38-40 (MRF) Power switch off Below 1 Ω
      F51-5 (MRFG) - A38-29 (MRFG) Power switch off Below 1 Ω
      F51-2 (MSN) - A38-39 (MSN) Power switch off Below 1 Ω
      F51-6 (MSNG) - A38-28 (MSNG) Power switch off Below 1 Ω
      F51-3 (MCS) - A38-38 (MCS) Power switch off Below 1 Ω
      F51-7 (MCSG) - A38-27 (MCSG) Power switch off Below 1 Ω
      for RHD
      Tester Connection Switch Condition Specified Condition
      F51-1 (MRF) - A74-40 (MRF) Power switch off Below 1 Ω
      F51-5 (MRFG) - A74-29 (MRFG) Power switch off Below 1 Ω
      F51-2 (MSN) - A74-39 (MSN) Power switch off Below 1 Ω
      F51-6 (MSNG) - A74-28 (MSNG) Power switch off Below 1 Ω
      F51-3 (MCS) - A74-38 (MCS) Power switch off Below 1 Ω
      F51-7 (MCSG) - A74-27 (MCSG) Power switch off Below 1 Ω
      Standard Resistance (Check for Short)
      for LHD
      Tester Connection Switch Condition Specified Condition
      F51-1 (MRF) or A38-40 (MRF) - Body ground and other terminals Power switch off 10 kΩ or higher
      F51-5 (MRFG) or A38-29 (MRFG) - Body ground and other terminals Power switch off 10 kΩ or higher
      F51-2 (MSN) or A38-39 (MSN) - Body ground and other terminals Power switch off 10 kΩ or higher
      F51-6 (MSNG) or A38-28 (MSNG) - Body ground and other terminals Power switch off 10 kΩ or higher
      F51-3 (MCS) or A38-38 (MCS) - Body ground and other terminals Power switch off 10 kΩ or higher
      F51-7 (MCSG) or A38-27 (MCSG) - Body ground and other terminals Power switch off 10 kΩ or higher
      for RHD
      Tester Connection Switch Condition Specified Condition
      F51-1 (MRF) or A74-40 (MRF) - Body ground and other terminals Power switch off 10 kΩ or higher
      F51-5 (MRFG) or A74-29 (MRFG) - Body ground and other terminals Power switch off 10 kΩ or higher
      F51-2 (MSN) or A74-39 (MSN) - Body ground and other terminals Power switch off 10 kΩ or higher
      F51-6 (MSNG) or A74-28 (MSNG) - Body ground and other terminals Power switch off 10 kΩ or higher
      F51-3 (MCS) or A74-38 (MCS) - Body ground and other terminals Power switch off 10 kΩ or higher
      F51-7 (MCSG) or A74-27 (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.

      Tech Tips

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

    5. Connect the motor resolver connector.

    6. Connect the inverter with converter assembly connector.


    OK

    REPLACE HYBRID VEHICLE TRANSMISSION ASSEMBLY Click here

    NG

  8. CHECK HARNESS AND CONNECTOR (JUNCTION CONNECTOR - INVERTER WITH CONVERTER ASSEMBLY)

    CAUTION:

    Be sure to wear insulated gloves.


    1. Check that the service plug grip is not installed.

      Note

      After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.

    2. Disconnect the junction connector.

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

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

      B002BPZE02
      Standard Resistance (Check for Open)
      for LHD
      Tester Connection Switch Condition Specified Condition
      FA3-1 - A38-40 (MRF) Power switch off Below 1 Ω
      FA3-2 - A38-29 (MRFG) Power switch off Below 1 Ω
      FA3-3 - A38-39 (MSN) Power switch off Below 1 Ω
      FA3-4 - A38-28 (MSNG) Power switch off Below 1 Ω
      FA3-6 - A38-38 (MCS) Power switch off Below 1 Ω
      FA3-7 - A38-27 (MCSG) Power switch off Below 1 Ω
      for RHD
      Tester Connection Switch Condition Specified Condition
      AF1-58 - A74-40 (MRF) Power switch off Below 1 Ω
      AF1-59 - A74-29 (MRFG) Power switch off Below 1 Ω
      AF1-60 - A74-39 (MSN) Power switch off Below 1 Ω
      AF1-61 - A74-28 (MSNG) Power switch off Below 1 Ω
      AF1-38 - A74-38 (MCS) Power switch off Below 1 Ω
      AF1-57 - A74-27 (MCSG) Power switch off Below 1 Ω
      Standard Resistance (Check for Short)
      for LHD
      Tester Connection Switch Condition Specified Condition
      FA3-1 or A38-40 (MRF) - Body ground and other terminals Power switch off 10 kΩ or higher
      FA3-2 or A38-29 (MRFG) - Body ground and other terminals Power switch off 10 kΩ or higher
      FA3-3 or A38-39 (MSN) - Body ground and other terminals Power switch off 10 kΩ or higher
      FA3-4 or A38-28 (MSNG) - Body ground and other terminals Power switch off 10 kΩ or higher
      FA3-6 or A38-38 (MCS) - Body ground and other terminals Power switch off 10 kΩ or higher
      FA3-7 or A38-27 (MCSG) - Body ground and other terminals Power switch off 10 kΩ or higher
      for RHD
      Tester Connection Switch Condition Specified Condition
      AF1-58 or A74-40 (MRF) - Body ground and other terminals Power switch off 10 kΩ or higher
      AF1-59 or A74-29 (MRFG) - Body ground and other terminals Power switch off 10 kΩ or higher
      AF1-60 or A74-39 (MSN) - Body ground and other terminals Power switch off 10 kΩ or higher
      AF1-61 or A74-28 (MSNG) - Body ground and other terminals Power switch off 10 kΩ or higher
      AF1-62 or A74-38 (MCS) - Body ground and other terminals Power switch off 10 kΩ or higher
      AF1-57 or A74-27 (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.

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

      Front view of wire harness connector

      (Junction Connector)

      		 *b

      Front view of wire harness connector

      (to Inverter with Converter Assembly)

    5. Connect the inverter with converter assembly connector.

    6. Connect the junction connector.


    OK

    REPAIR OR REPLACE HARNESS OR CONNECTOR (JUNCTION CONNECTOR - MOTOR RESOLVER)

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (JUNCTION CONNECTOR - INVERTER WITH CONVERTER ASSEMBLY)

  9. CHECK CONNECTOR CONNECTION CONDITION (POWER MANAGEMENT CONTROL ECU CONNECTOR)


    1. B002B9CE01
      Text in Illustration
      *A for LHD
      *B for RHD

      Check the connector connections and contact pressure of the relevant terminals for the power management control ECU connectors Click here.

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

    NG

    CONNECT SECURELY

    OK

  10. CHECK CONNECTOR CONNECTION CONDITION (TRANSMISSION WIRE CONNECTOR)


    1. A000SJ3

      Check the connection of the transmission wire connector Click here.

      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. A000O14

      Check the connections of the oil pump motor controller connectors Click here.

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

      Tech Tips

      For connector A, 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 (OIL PMP)


    1. A000QIHE01
      Text in Illustration
      *1 No. 1 Engine Room Relay Block and Junction Block Assembly
      *2 Fusible Link (OIL PMP)

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

      OK
      There is no open circuit in the fusible link (OIL PMP).

    NG

    REPLACE FUSIBLE LINK (OIL PMP)

    OK

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


    1. B002BKPE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to Power Management Control ECU)

      Disconnect the connector from the power management control ECU.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A36-7 (SP) - Body ground 68°F (20°C) 11 to 15 Ω
      Standard Resistance
      Tester Connection Condition Specified Condition
      N91-14 (SL1+) - N91-13 (SL1-) 68°F (20°C) 5.0 to 5.6 Ω
      N91-12 (SL2+) - N91-11 (SL2-) 68°F (20°C) 5.0 to 5.6 Ω

    3. Connect the power management control ECU connector.


    NG

    CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - TRANSMISSION WIRE) Click here

    OK

  14. CHECK RELAY (OIL PMP)


    1. A000OCIE01
      Text in Illustration
      *1 No. 1 Engine Room Relay Block and Junction Block Assembly
      *2 OIL PMP Relay

      Remove the OIL PMP relay from the No. 1 engine room relay block and junction block assembly.

    2. A000SVRE02
      Text in Illustration
      *1 OIL PMP Relay

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

      Standard Resistance
      Tester Connection 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

    3. Install the OIL PMP relay to the No. 1 engine room relay block and junction block assembly.


    NG

    REPLACE RELAY (OIL PMP)

    OK

  15. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - OIL PUMP MOTOR CONTROLLER)


    1. A000Q7BE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to Power Management Control ECU)
      *b

      Front view of wire harness connector

      (to Oil Pump Motor Controller)

      Disconnect the connector from the power management control ECU.

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

    3. Turn the power switch on (IG).

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      A35-16 (TPM1) - Body ground Power switch on (IG) Below 1 V
      A35-17 (TPST) - Body ground Power switch on (IG) Below 1 V

      Note

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

    5. Turn the power switch off.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      A35-16 (TPM1) - A44-6 (SIG) Power switch off Below 1 Ω
      A35-17 (TPST) - A44-7 (OPST) Power switch off Below 1 Ω
      A35-16 (TPM1) - Body ground and other terminals Power switch off 10 kΩ or higher
      A35-17 (TPST) - Body ground and other terminals Power switch off 10 kΩ or higher

    7. Connect the power management control ECU connector.

    8. Connect the oil pump motor controller connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  16. CHECK OIL WITH MOTOR PUMP ASSEMBLY


    1. A000PLYE01
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Oil Pump Motor Controller)

      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
      Z19-1 (W) - Body ground Power switch on (IG) Below 1 V
      Z19-2 (U) - Body ground Power switch on (IG) Below 1 V
      Z19-3 (V) - Body ground Power switch on (IG) Below 1 V
      z20-1 (OHW) - Body ground Power switch on (IG) Below 1 V
      z20-2 (OHV) - Body ground Power switch on (IG) Below 1 V
      z20-3 (OHU) - Body ground Power switch on (IG) Below 1 V
      z20-4 (OIGH) - Body ground Power switch on (IG) Below 1 V
      z20-5 (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
      Tester Connection Switch Condition Specified Condition
      z19-1 (W) - z19-2 (U) Power switch off Below 1 Ω
      z19-1 (W) - z19-3 (V) Power switch off Below 1 Ω
      z19-1 (W) - Body ground Power switch off 10 kΩ or higher
      z19-2 (U) - Body ground Power switch off 10 kΩ or higher
      z19-3 (V) - Body ground Power switch off 10 kΩ or higher
      z20-1 (OHW) - Body ground Power switch off 10 kΩ or higher
      z20-2 (OHV) - Body ground Power switch off 10 kΩ or higher
      z20-3 (OHU) - Body ground Power switch off 10 kΩ or higher
      z20-4 (OIGH) - Body ground Power switch off 10 kΩ or higher
      z20-5 (OHG) - Body ground Power switch off 10 kΩ or higher

    6. Connect the oil pump motor controller connector.


    NG

    REPLACE OIL WITH MOTOR PUMP ASSEMBLY Click here

    OK

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


    1. Disconnect the connector from the oil pump motor controller.

    2. Turn the power switch on (IG).

    3. A000QBQE01
      Text in Illustration
      *a

      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
      A44-5 (+B) - Body ground Power switch on (IG) 11 to 14 V

    4. Turn the power switch off.

    5. A000OCIE01
      Text in Illustration
      *1 No. 1 Engine Room Relay Block and Junction Block Assembly
      *2 OIL PMP Relay

      Remove the OIL PMP relay from the No. 1 engine room relay block and junction block assembly.

    6. A000PPFE01
      Text in Illustration
      *1 No. 1 Engine Room Relay Block and Junction Block Assembly
      *2 OIL PMP Relay
      *a

      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
      Tester Connection Switch Condition Specified Condition
      5 (OIL PMP relay) - A44-5 (+B) Power switch off Below 1 Ω
      2 (OIL PMP relay) - Body ground Power switch off Below 1 Ω
      5 (OIL PMP relay) - Body ground Power switch off 10 kΩ or higher

    7. Disconnect the connector from the power management control ECU.

      A000S4HE02
      Text in Illustration
      *1 No. 1 Engine Room Relay Block and Junction Block Assembly *2 OIL PMP Relay
      *a

      Rear view of wire harness connector

      (to Power Management Control ECU)

      		 - -

    8. Turn the power switch off.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      1 (OIL PMP relay) - A35-7 (TPM2) Power switch off Below 1 Ω
      1 (OIL PMP relay) or A35-7 (TPM2) - Body ground Power switch off 10 kΩ or higher

    10. Connect the oil pump motor controller connector.

    11. Install the OIL PMP relay to the No. 1 engine room relay block and junction block assembly.

    12. Connect the power management control ECU connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  18. CHECK TRANSMISSION REVOLUTION SENSOR (SP2)


    1. A000RTQE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to Power Management Control ECU)

      Disconnect the connector from the power management control ECU.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A36-25 (SP2+) - A36-24 (SP2-) Approximately 68°F (20°C) 560 to 680 Ω

    3. Connect the power management control ECU connector.


    NG

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

    OK

  19. 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 the connector connections and contact pressure of the low voltage connectors of the inverter with converter assembly Click here.

      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.

      B002BBWE01
      Text in Illustration
      *A for LHD *B for RHD
      OK
      The connectors are connected securely and there are no contact pressure 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. 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 connector from the inverter with converter assembly.

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

    4. Turn the power switch on (IG).

    5. B002B4ZE02
      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 low voltage connector of 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. Connect the inverter with converter assembly connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  21. 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 connector from the inverter with converter assembly.

    3. B002B4ZE02
      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 6.0 to 12.0 Ω
      A38-39 (MSN) - A38-28 (MSNG) Power switch off 12.5 to 24.5 Ω
      A38-38 (MCS) - A38-27 (MCSG) Power switch off 12.5 to 24.5 Ω
      for RHD
      Tester Connection Switch Condition Specified Condition
      A74-40 (MRF) - A74-29 (MRFG) Power switch off 6.0 to 12.0 Ω
      A74-39 (MSN) - A74-28 (MSNG) Power switch off 12.5 to 24.5 Ω
      A74-38 (MCS) - A74-27 (MCSG) Power switch off 12.5 to 24.5 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 terminals Power switch off 1 MΩ or higher

    4. Connect the inverter with converter assembly connector.


    NG

    CHECK CONNECTOR CONNECTION CONDITION (MOTOR RESOLVER CONNECTOR) Click here

    OK

  22. CLEAR DTC


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

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

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

    5. Clear DTCs and freeze frame data.

    6. Turn the power switch off.


    NEXT

  23. SIMULATION TEST


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (READY).

    3. Enter the following menus: Powertrain / Hybrid Control / Data List / Motor(MG2) Revolution, Output Shaft Speed, Output Shaft Speed Calculated by Wheel Speed.

    4. Perform a stall test and road test, and read the Data List.

      B002BPXE01

      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 24 mph (39 km/h) 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 24 mph (39 km/h) or more.

    5. Turn the power switch off.


    NG

    REPLACE HYBRID VEHICLE TRANSMISSION ASSEMBLY Click here

    OK

  24. 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 POWER MANAGEMENT CONTROL ECU Click here

    NG

    REPAIR OR REPLACE HYBRID VEHICLE TRANSMISSION ASSEMBLY Click here

  26. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - TRANSMISSION WIRE)


    1. B002BWVE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to Power Management Control ECU)
      *b

      Front view of wire harness connector

      (to Transmission Wire)

      Disconnect the power management control ECU connector.

    2. Disconnect the transmission wire connector.

    3. Turn the power switch on (IG).

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      A36-7 (SP) - Body ground Power switch on (IG) Below 1 V
      N91-13 (SL1-) - Body ground Power switch on (IG) Below 1 V
      N91-14 (SL1+) - Body ground Power switch on (IG) Below 1 V
      N91-11 (SL2-) - Body ground Power switch on (IG) Below 1 V
      N91-12 (SL2+) - Body ground Power switch on (IG) Below 1 V

      Note

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

    5. Turn the power switch off.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      A36-7 (SP) - F52-4 (SP) Power switch off Below 1 Ω
      N91-13 (SL1-) - F52-13 (SL1-) Power switch off Below 1 Ω
      N91-14 (SL1+) - F52-6 (SL1+) Power switch off Below 1 Ω
      N91-11 (SL2-) - F52-12 (SL2-) Power switch off Below 1 Ω
      N91-12 (SL2+) - F52-5 (SL2+) Power switch off Below 1 Ω
      A36-7 (SP) or F52-4 (SP) - Body ground and other terminals Power switch off 10 kΩ or higher
      N91-13 (SL1-) or F52-13 (SL1-) - Body ground and other terminals Power switch off 10 kΩ or higher
      N91-14 (SL1+) or F52-6 (SL1+) - Body ground and other terminals Power switch off 10 kΩ or higher
      N91-11 (SL2-) or F52-12 (SL2-) - Body ground and other terminals Power switch off 10 kΩ or higher
      N91-12 (SL2+) or F52-5 (SL2+) - Body ground and other terminals Power switch off 10 kΩ or higher

    7. Connect the power management control ECU connector.

    8. Connect the transmission control switch connector.


    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. A000S1L

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

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

    NG

    CONNECT SECURELY

    OK

  28. CHECK HARNESS AND CONNECTOR (TRANSMISSION REVOLUTION SENSOR (SP2) - POWER MANAGEMENT CONTROL ECU)


    1. A000ON8E02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to Power Management Control ECU)
      *b

      Front view of wire harness connector

      (to Transmission Revolution Sensor (SP2))

      Disconnect the power management control ECU connector.

    2. Disconnect the transmission revolution sensor (SP2) connector.

    3. Turn the power switch on (IG).

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      A36-24 (SP2-) - Body ground Power switch on (IG) Below 1 V
      A36-25 (SP2+) - Body ground Power switch on (IG) Below 1 V

      Note

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

    5. Turn the power switch off.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      A36-24 (SP2-) - F55-1 (NC2-) Power switch off Below 1 Ω
      A36-25 (SP2+) - F55-2 (NC2+) Power switch off Below 1 Ω
      A36-24 (SP2-) or F55-1 (NC2-) - Body ground and other terminals Power switch off 10 kΩ or higher
      A36-25 (SP2+) or F55-2 (NC2+) - Body ground and other terminals Power switch off 10 kΩ or higher

      Tech Tips

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

    7. Connect the power management control ECU connector.

    8. Connect the transmission revolution sensor (SP2) connector.


    OK

    REPLACE HYBRID VEHICLE TRANSMISSION ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  29. CHECK CONNECTOR CONNECTION CONDITION (MOTOR RESOLVER CONNECTOR)


    1. B002B4I

      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 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 HYBRID VEHICLE TRANSMISSION ASSEMBLY (MOTOR RESOLVER)


    1. Disconnect the resolver connector.

    2. B002B72C14
      *a

      Component without harness connected

      (Motor Resolver (Hybrid Vehicle Transmission Assembly))

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

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      1 (MRF) - 5 (MRFG) Power switch off 6.0 to 12.0 Ω
      2 (MSN) - 6 (MSNG) Power switch off 12.5 to 24.5 Ω
      3 (MCS) - 7 (MCSG) Power switch off 12.5 to 24.5 Ω

      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 (°F).)

      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      1 (MRF) - Body ground and other terminals (except 5 (MRFG)) Power switch off 1 MΩ or higher
      5 (MRFG) - Body ground and other terminals (except 1 (MRF)) Power switch off 1 MΩ or higher
      2 (MSN) - Body ground and other terminals (except 6 (MSNG)) Power switch off 1 MΩ or higher
      6 (MSNG) - Body ground and other terminals (except 2 (MSN)) Power switch off 1 MΩ or higher
      3 (MCS) - Body ground and other terminals (except 7 (MCSG)) Power switch off 1 MΩ or higher
      7 (MCSG) - Body ground and other terminals (except 3 (MCS)) Power switch off 1 MΩ or higher

    3. Reconnect the resolver connector.

      Result
      Proceed to
      OK
      NG

    OK

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    NG

    REPLACE HYBRID VEHICLE TRANSMISSION ASSEMBLY Click here