Last Modified: 01-30-2024 6.11:8.1.0 Doc ID: RM100000001EKKU
Model Year Start: 2019 Model: RAV4 HV Prod Date Range: [11/2018 - 08/2020]
Title: HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for 2WD with NICKEL METAL HYDRIDE BATTERY): P0A2A11,P0A2A15; Drive Motor "A" Temperature Sensor Circuit Short to Ground; 2019 - 2020 MY RAV4 HV [11/2018 - 08/2020]

DTC

P0A2A11

Drive Motor "A" Temperature Sensor Circuit Short to Ground

DTC

P0A2A15

Drive Motor "A" Temperature Sensor Circuit Short to Auxiliary Battery or Open

DTC SUMMARY

MALFUNCTION DESCRIPTION

These DTCs are stored when the motor temperature sensor output is abnormal. The cause of this malfunction may be one of the following:

Hybrid vehicle control ECU assembly malfunction

  • Hybrid vehicle control ECU assembly internal malfunction

Motor temperature sensor malfunction

  • Internal motor temperature sensor malfunction
  • Open or short in motor temperature sensor

Wire harness between the motor temperature sensor and hybrid vehicle control ECU assembly

  • The connectors are not connected properly
  • Foreign matter or water on the connector terminals
  • Open or short in wire harness

HINT:

If any of these DTCs are stored, the motor temperature sensor is malfunctioning and the self-protection function may not operate. Therefore under certain high load driving condition, the temperature of the motor (MG2) becomes high. If the self-protection function does not operate, the motor (MG2) may malfunction and cause the vehicle to enter fail-safe mode.

DESCRIPTION

The resistance of the thermistor built into the motor temperature sensor changes in accordance with changes in the motor (MG2) temperature. The lower the motor (MG2) temperature, the higher the thermistor resistance. Conversely, the higher the motor (MG2) temperature, the lower the resistance.

HINT:

The term "drive motor A" indicates the motor (MG2).

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Warning Indicate

P0A2A11

Drive Motor "A" Temperature Sensor Circuit Short to Ground

Short to ground in the motor temperature sensor circuit

(1 trip detection logic)
  • Wire harness or connector
  • Hybrid vehicle control ECU assembly
  • Motor temperature sensor (Hybrid vehicle transaxle assembly)

Comes on

Master Warning:

Comes on

P0A2A15

Drive Motor "A" Temperature Sensor Circuit Short to Auxiliary Battery or Open

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

(1 trip detection logic)
  • Wire harness or connector
  • Hybrid vehicle control ECU assembly
  • Motor temperature sensor (Hybrid vehicle transaxle assembly)

Comes on

Master Warning:

Comes on

Related Data List

DTC No.

Data List

P0A2A11

Motor Temperature

P0A2A15

HINT:

After confirming that DTC P0A2A11 or P0A2A15 is output, use the Techstream to check "Motor Temperature" in the Data List.

Displayed Temperature

Malfunction

-40°C (-40°F)

Open circuit or short to +B

215°C (419°F)

Short to ground

CONFIRMATION DRIVING PATTERN

HINT:

After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.

Click here 2019 - 2020 MY RAV4 HV [11/2018 - 08/2020]; HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for 2WD with NICKEL METAL HYDRIDE BATTERY): UTILITY

  1. Connect the Techstream to the DLC3.
  2. Turn the power switch on (IG) and turn the Techstream on.
  3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
  4. Turn the power switch off and wait for 2 minutes or more.
  5. Turn the power switch on (IG) and turn the Techstream on.
  6. With power switch on (IG) and wait for 5 seconds or more.
  7. Enter the following menus: Powertrain / Hybrid Control / Utility / All Readiness.
  8. Check the DTC judgment result.

    HINT:

    • If the judgment result shows NORMAL, the system is normal.
    • If the judgment result shows ABNORMAL, the system has a malfunction.
    • If the judgment result shows INCOMPLETE, perform driving pattern again.

WIRING DIAGRAM

PROCEDURE

1.

CHECK CONNECTOR CONNECTION CONDITION (HYBRID VEHICLE CONTROL ECU ASSEMBLY CONNECTOR)

(a) Check the connection condition of the hybrid vehicle control ECU assembly 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 2019 - 2024 MY RAV4 RAV4 HV [11/2018 -        ]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: ELECTRONIC CIRCUIT INSPECTION PROCEDURE

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. 1 ENGINE ROOM RELAY BLOCK AND JUNCTION BLOCK ASSEMBLY CA3 CONNECTOR)

(a) Check the connection condition of the No. 1 engine room relay block and junction block assembly CA3 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 2019 - 2024 MY RAV4 RAV4 HV [11/2018 -        ]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: ELECTRONIC CIRCUIT INSPECTION PROCEDURE

OK:

- The connector is connected securely.

- The terminals are not deformed and are connected securely.

- No water or foreign matter in the connectors.

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 (MOTOR TEMPERATURE SENSOR CONNECTOR)

(a) Check the connection condition of the 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 2019 - 2024 MY RAV4 RAV4 HV [11/2018 -        ]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: ELECTRONIC CIRCUIT INSPECTION PROCEDURE

OK:

- The connector is connected securely.

- The terminals are not deformed and are connected securely.

- No water or foreign matter in the connector.

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.

READ VALUE USING TECHSTREAM (MOTOR TEMPERATURE)

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Enter the following menus: Powertrain / Hybrid Control / Data List / Motor Temperature.

(d) Read the Data List.

Powertrain > Hybrid Control > Data List

Tester Display

Motor Temperature

Result

Proceed to

-40°C (-40°F)

A

215°C (419°F)

B

Same as actual temperature

C

(e) Turn the power switch off.

B

GO TO STEP 7

C

REPAIR OR REPLACE HARNESS OR CONNECTOR
A

5.

INSPECT HYBRID VEHICLE TRANSAXLE ASSEMBLY (MOTOR TEMPERATURE SENSOR)

(a) Disconnect the C50 motor temperature sensor connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

1 (MMT) - 2 (MMTG)

Power switch off

0.3443 to 1446 kΩ

*a

Component without harness connected

(Motor Temperature Sensor (Hybrid Vehicle Transaxle Assembly))

(c) Reconnect the C50 motor temperature sensor connector.

NG

REPLACE HYBRID VEHICLE TRANSAXLE ASSEMBLY 2019 MY RAV4 HV [11/2018 - 02/2019]; P710 (HYBRID TRANSMISSION / TRANSAXLE): HYBRID VEHICLE TRANSAXLE: REMOVAL 2019 MY RAV4 HV [02/2019 - 10/2019]; P710 (HYBRID TRANSMISSION / TRANSAXLE): HYBRID VEHICLE TRANSAXLE: REMOVAL 2020 MY RAV4 HV [10/2019 - 06/2020]; P710 (HYBRID TRANSMISSION / TRANSAXLE): HYBRID VEHICLE TRANSAXLE: REMOVAL 2020 MY RAV4 HV [06/2020 - 08/2020]; P710 (HYBRID TRANSMISSION / TRANSAXLE): HYBRID VEHICLE TRANSAXLE: REMOVAL

OK

6.

INSPECT HYBRID VEHICLE CONTROL ECU ASSEMBLY

(a) Connect terminals 46 (MMT) and 45 (MMTG) of the A29 hybrid vehicle control ECU assembly connector.

*a

Component with harness connected

(Hybrid Vehicle Control ECU Assembly)

-

-

(b) Connect the Techstream to the DLC3.

(c) Turn the power switch on (IG).

(d) Enter the following menus: Powertrain / Hybrid Control / Data List / Motor Temperature.

(e) Read the Data List.

Powertrain > Hybrid Control > Data List

Tester Display

Motor Temperature

OK:

Techstream Display

Condition

Specified Condition

Motor Temperature

Terminals A29-46 (MMT) and A29-45 (MMTG) connected

Power switch on (IG)

215°C (419°F)

(f) Turn the power switch off.

OK

REPAIR OR REPLACE HARNESS OR CONNECTOR
NG

REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLY 2019 MY RAV4 HV [11/2018 - 02/2019]; HYBRID / BATTERY CONTROL: HYBRID VEHICLE CONTROL ECU: REMOVAL 2019 MY RAV4 HV [02/2019 - 10/2019]; HYBRID / BATTERY CONTROL: HYBRID VEHICLE CONTROL ECU: REMOVAL 2020 MY RAV4 HV [10/2019 - 08/2020]; HYBRID / BATTERY CONTROL: HYBRID VEHICLE CONTROL ECU: REMOVAL

7.

INSPECT HYBRID VEHICLE TRANSAXLE ASSEMBLY (MOTOR TEMPERATURE SENSOR)

(a) Disconnect the C50 motor temperature sensor connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

1 (MMT) - 2 (MMTG)

Power switch off

0.3443 to 1446 kΩ

*a

Component without harness connected

(Motor Temperature Sensor (Hybrid Vehicle Transaxle Assembly))

(c) Reconnect the C50 motor temperature sensor connector.

NG

REPLACE HYBRID VEHICLE TRANSAXLE ASSEMBLY 2019 MY RAV4 HV [11/2018 - 02/2019]; P710 (HYBRID TRANSMISSION / TRANSAXLE): HYBRID VEHICLE TRANSAXLE: REMOVAL 2019 MY RAV4 HV [02/2019 - 10/2019]; P710 (HYBRID TRANSMISSION / TRANSAXLE): HYBRID VEHICLE TRANSAXLE: REMOVAL 2020 MY RAV4 HV [10/2019 - 06/2020]; P710 (HYBRID TRANSMISSION / TRANSAXLE): HYBRID VEHICLE TRANSAXLE: REMOVAL 2020 MY RAV4 HV [06/2020 - 08/2020]; P710 (HYBRID TRANSMISSION / TRANSAXLE): HYBRID VEHICLE TRANSAXLE: REMOVAL

OK

8.

CHECK HARNESS AND CONNECTOR (MOTOR TEMPERATURE SENSOR - HYBRID VEHICLE CONTROL ECU ASSEMBLY)

(a) Disconnect the C50 motor temperature sensor connector.

(b) Disconnect the A29 hybrid vehicle control ECU assembly connector.

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

Standard Resistance (Check for Open):

Tester Connection

Condition

Specified Condition

C50-1 (MMT) - A29-46 (MMT)

Power switch off

Below 1 Ω

C50-2 (MMTG) - A29-45 (MMTG)

Power switch off

Below 1 Ω

Standard Resistance (Check for Short):

Tester Connection

Condition

Specified Condition

C50-1 (MMT) or A29-46 (MMT) - Body ground and other terminals

Power switch off

10 kΩ or higher

C50-2 (MMTG) or A29-45 (MMTG) - Body ground and other terminals

Power switch off

10 kΩ or higher

*a

Front view of wire harness connector

(to Motor Temperature Sensor)

*b

Front view of wire harness connector

(to Hybrid Vehicle Control ECU Assembly)

(d) Reconnect the A29 hybrid vehicle control ECU assembly connector.

(e) Reconnect the C50 motor temperature sensor connector.

OK

REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLY 2019 MY RAV4 HV [11/2018 - 02/2019]; HYBRID / BATTERY CONTROL: HYBRID VEHICLE CONTROL ECU: REMOVAL 2019 MY RAV4 HV [02/2019 - 10/2019]; HYBRID / BATTERY CONTROL: HYBRID VEHICLE CONTROL ECU: REMOVAL 2020 MY RAV4 HV [10/2019 - 08/2020]; HYBRID / BATTERY CONTROL: HYBRID VEHICLE CONTROL ECU: REMOVAL

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR