HYBRID CONTROL SYSTEM, Diagnostic DTC:P0A32-666 and 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

Tip:

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
Tip:

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

C362194E01

CAUTION / NOTICE / HINT

Tip:

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)

    Click here

    Result

    Proceed to

    A

    B

    C
    B

    CONNECT SECURELY

    C

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    A

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

    1. C364253E01

      Check the connection condition of the rear motor temperature intermediate connector AN3 (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 (FRAME WIRE CONNECTOR)

    1. C362264E01

      Check the connection condition of the rear motor temperature intermediate connector ON1 (frame 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. C296836

      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. C296836

      Disconnect the O3 rear motor temperature sensor connector.

    2. A386639C04

      *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 O3 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. A374929C15

      *a

      Component with harness connected

      (Hybrid Vehicle Control ECU)

      Connect terminals 27 (RMT) and 35 (RMTG) of the A66 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 A66-27 (RMT) and A66-35 (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. C296836

      Disconnect the O3 rear motor temperature sensor connector.

    2. A386639C04

      *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 O3 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 O3 rear motor temperature sensor connector.

    2. C304436C09

      *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 A66 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

      O3-1 (RMT) - A66-27 (RMT)

      Power switch off

      Below 1 Ω

      O3-3 (RMTG) - A66-35 (RMTG)

      Power switch off

      Below 1 Ω

      Standard Resistance (Check for Short)

      Tester Connection

      Condition

      Specified Condition

      O3-1 (RMT) or A66-27 (RMT) - Body ground and other terminals

      Power switch off

      10 kΩ or higher

      O3-3 (RMTG) or A66-35 (RMTG) - Body ground and other terminals

      Power switch off

      10 kΩ or higher

    4. Reconnect the A66 hybrid vehicle control ECU connector.

    5. Reconnect the O3 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