HYBRID CONTROL SYSTEM, Diagnostic DTC:P0A32-666, P0A33-665

DTC Code DTC Name
P0A32-666 Drive Motor "B" Temperature Sensor Circuit Low
P0A33-665 Drive Motor "B" Temperature Sensor Circuit High

DESCRIPTION

Refer to the description for DTC P0A2B-250.

Click here

Tech Tips

The term "drive motor B" indicates the rear motor (MGR).

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate
P0A32-666 Drive Motor "B" Temperature Sensor Circuit Low

Line short or short to ground in rear motor temperature sensor circuit

(1 trip detection logic)

  • Wire harness or connector

  • Hybrid vehicle control ECU

  • Rear traction motor with transaxle assembly (Rear motor temperature sensor)

 Does not come on

Master Warning Light:

Comes on
P0A33-665 Drive Motor "B" Temperature Sensor Circuit High

Open or short to +B in rear motor temperature sensor circuit

(1 trip detection logic)

  • Wire harness or connector

  • Hybrid vehicle control ECU

  • Rear traction motor with transaxle assembly (Rear motor temperature sensor)

 Does not come on

Master Warning Light:

Comes on

Tech Tips

After confirming that DTC P0A32-666 or P0A33-665 is output, use the GTS to check "Rear Motor Temp" in the Data List.

Displayed Temperature Malfunction
-40°C (-40°F) Open circuit or short to +B
215°C (419°F) Short circuit or short to ground

WIRING DIAGRAM

A0000JSE04

CAUTION / NOTICE / HINT

Tech Tips

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


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

PROCEDURE


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

    Result
    Proceed to
    A
    B
    C

    1. A0001LZC02
      *A for LHD
      *B for RHD

      Check the connection condition of the hybrid vehicle control ECU connectors and the contact pressure of each terminal. Check the terminals for deformation, and check the connector for water ingress and foreign matter.

      Click here

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

    B

    CONNECT SECURELY

    C

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    A

  2. CHECK CONNECTOR CONNECTION CONDITION (NO. 2 FLOOR WIRE CONNECTOR)


    1. A0000CIE02

      Check the connection condition of the rear motor temperature intermediate connector AQ3 (No. 2 floor wire) and the contact pressure of each terminal. Check the terminals for deformation, and check the connector for water ingress and foreign matter.

      Click here

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

    B

    CONNECT SECURELY

    C

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    A

  3. CHECK CONNECTOR CONNECTION CONDITION (NO. 4 FLOOR WIRE CONNECTOR)


    1. A0000HOE02

      Check the connection condition of the rear motor temperature intermediate connector RQ2 (No. 4 floor wire) and the contact pressure of each terminal. Check the terminals for deformation, and check the connector for water ingress and foreign matter.

      Click here

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

    B

    CONNECT SECURELY

    C

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    A

  4. CHECK CONNECTOR CONNECTION CONDITION (REAR MOTOR TEMPERATURE SENSOR CONNECTOR)


    1. A0001DV

      Check the connection condition of the rear motor temperature sensor connector and the contact pressure of each terminal. Check the terminals for deformation, and check the connector for water ingress and foreign matter.

      Click here

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

    B

    CONNECT SECURELY

    C

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    A

  5. READ VALUE USING GTS (REAR MOTOR TEMP)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Enter the following menus: Powertrain / Hybrid Control / Data List / Rear Motor Temp.

    4. Read the Data List.


      Powertrain > Hybrid Control > Data List
      Tester Display
      Rear Motor Temp
      Result
      Proceed to
      -40°C (-40°F)
      215°C (419°F)
      Same as actual temperature

    5. Turn the power switch off.


    215°C (419°F)

    INSPECT REAR TRACTION MOTOR WITH TRANSAXLE ASSEMBLY (REAR MOTOR TEMPERATURE SENSOR) Click here

    Same as actual temperature

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    -40°C (-40°F)

  6. INSPECT REAR TRACTION MOTOR WITH TRANSAXLE ASSEMBLY (REAR MOTOR TEMPERATURE SENSOR)


    1. A0001DV

      Disconnect the R2 rear motor temperature sensor connector.

    2. A0000ALC04
      *a

      Component without harness connected

      (Rear Traction Motor with Transaxle Assembly (Rear Motor Temperature Sensor))

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 (RMT) - 3 (RMTG) Power switch off 0.3436 to 1442 kΩ

    3. Reconnect the R2 rear motor temperature sensor connector.

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE REAR TRACTION MOTOR WITH TRANSAXLE ASSEMBLY Click here

    OK

  7. CHECK HYBRID VEHICLE CONTROL ECU


    1. B002HCWC35
      *a

      Component with harness connected

      (Hybrid Vehicle Control ECU)

      Connect terminals 27 (RMT) and 35 (RMTG) of the A61 hybrid vehicle control ECU connector.

    2. Connect the GTS to the DLC3.

    3. Enter the following menus: Powertrain / Hybrid Control / Data List / Rear Motor Temp.

    4. Read the Data List.


      Powertrain > Hybrid Control > Data List
      Tester Display
      Rear Motor Temp
      Result
      Tester Display Condition Specified Condition
      Rear Motor Temp

      Terminals A61-27 (RMT) and A61-35 (RMTG) connected

      Power switch on (IG)

      		 215°C (419°F)

    5. Turn the power switch off.

      Result
      Proceed to
      OK
      NG

    OK

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    NG

    REPLACE HYBRID VEHICLE CONTROL ECU Click here

  8. INSPECT REAR TRACTION MOTOR WITH TRANSAXLE ASSEMBLY (REAR MOTOR TEMPERATURE SENSOR)


    1. A0001DV

      Disconnect the R2 rear motor temperature sensor connector.

    2. A0000ALC04
      *a

      Component without harness connected

      (Rear Traction Motor with Transaxle Assembly (Rear Motor Temperature Sensor))

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 (RMT) - 3 (RMTG) Power switch off 0.3436 to 1442 kΩ

    3. Reconnect the R2 rear motor temperature sensor connector.

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE REAR TRACTION MOTOR WITH TRANSAXLE ASSEMBLY Click here

    OK

  9. CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU - REAR MOTOR TEMPERATURE SENSOR)


    1. Disconnect the R2 rear motor temperature sensor connector.

    2. A0002CIC03
      *a

      Front view of wire harness connector

      (to Rear Motor Temperature Sensor)
      *b

      Rear view of wire harness connector

      (to Hybrid Vehicle Control ECU)

      Disconnect the A61 hybrid vehicle control ECU connector.

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

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      R2-1 (RMT) - A61-27 (RMT) Power switch off Below 1 Ω
      R2-3 (RMTG) - A61-35 (RMTG) Power switch off Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      R2-1 (RMT) or A61-27 (RMT) - Body ground and other terminals Power switch off 10 kΩ or higher
      R2-3 (RMTG) or A61-35 (RMTG) - Body ground and other terminals Power switch off 10 kΩ or higher

    4. Reconnect the A61 hybrid vehicle control ECU connector.

    5. Reconnect the R2 rear motor temperature sensor connector.

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE HYBRID VEHICLE CONTROL ECU Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR