DTC P0A2C-247: Drive Motor "A" Temperature Sensor Circuit Low; DTC P0A2D-249: Drive Motor "A" Temperature Sensor Circuit High [10/2015 - ]: Procedure

1. 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.

   Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE [10/2014 - ]

   OK

   - The connector is connected securely.

   - The terminals are not deformed and are connected securely.

   - No water or foreign matter in the connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   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

Result: 

B 

CONNECT SECURELY 

Result: 

C 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

A 

See step  2

1. Check the connection condition of the B47 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.

   Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE [10/2014 - ]

   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

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Result: 

B 

CONNECT SECURELY 

Result: 

C 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

A 

See step  3

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Enter the following menus: Powertrain / Hybrid Control / Data List / Motor Temp No1.
4. Read the Data List.

   Result

   Result	Proceed to
   -40°C (-40°F)	A
   215°C (419°F)	B
   Same as actual temperature	C

5. Turn the power switch off.

Result: 

B 

See step  6

Result: 

C 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

A 

See step  4

1. Disconnect the B47 motor temperature sensor connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   B47-1 (MMT) - B47-3 (MMTG)	Power switch off	0.3436 to 1442 kΩ

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Component without harness connected (Motor Temperature Sensor (Hybrid Vehicle Transaxle Assembly))

3. Reconnect the B47 motor temperature sensor connector.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE HYBRID VEHICLE TRANSAXLE ASSEMBLY 

When Not Using the Engine Support Bridge: Refer to COMPONENTS [10/2014 - ]

When Using the Engine Support Bridge: Refer to COMPONENTS [10/2015 - ]

Result: 

OK 

See step  5

1. Connect terminals 24 (MMT) and 23 (MMTG) of the A67 hybrid vehicle control ECU assembly connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Component with harness connected (to Hybrid Vehicle Control ECU Assembly)

2. Connect the Techstream to the DLC3.
3. Turn the power switch on (IG).
4. Enter the following menus: Powertrain / Hybrid Control / Data List / Motor Temp No1.
5. Read the Data List.

   OK

   Tester Display	Condition	Specified Condition
   Motor Temp No1	Terminals A67-24 (MMT) and A67-23 (MMTG) connected Power switch on (IG)	215°C (419°F)

   Result

   Proceed to
   OK
   NG

6. Turn the power switch off.

Result: 

OK 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

NG 

REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLY. Refer to  COMPONENTS [10/2015 - ] 

1. Disconnect the B47 motor temperature sensor connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Component without harness connected (Motor Temperature Sensor (Hybrid Vehicle Transaxle Assembly))

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   B47-1 (MMT) - B47-3 (MMTG)	Power switch off	0.3436 to 1442 kΩ

3. Reconnect the B47 motor temperature sensor connector.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE HYBRID VEHICLE TRANSAXLE ASSEMBLY 

When Not Using the Engine Support Bridge: Refer to COMPONENTS [10/2014 - ]

When Using the Engine Support Bridge: Refer to COMPONENTS [10/2015 - ]

Result: 

OK 

See step  7

1. Disconnect the B47 motor temperature sensor connector.
2. Disconnect the A67 hybrid vehicle control ECU assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance (Check for Open)

   Tester Connection	Condition	Specified Condition
   B47-1 (MMT) - A67-24 (MMT)	Power switch off	Below 1 Ω
   B47-3 (MMTG) - A67-23 (MMTG)	Power switch off	Below 1 Ω

   Standard Resistance (Check for Short)

   Tester Connection	Condition	Specified Condition
   B47-1 (MMT) or A67-24 (MMT) - Body ground and other terminals	Power switch off	10 kΩ or higher
   B47-3 (MMTG) or A67-23 (MMTG) - Body ground and other terminals	Power switch off	10 kΩ or higher

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of wire harness connector (to Motor Temperature Sensor)
   *b	Rear view of wire harness connector (to Hybrid Vehicle Control ECU Assembly)

4. Reconnect the A67 hybrid vehicle control ECU assembly connector.
5. Reconnect the B47 motor temperature sensor connector.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLY. Refer to  COMPONENTS [10/2015 - ] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR