P0A2C

HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM: P0A2C-247, P0A2D-249: Drive Motor "A" Temperature Sensor Circuit Low
P0A2D-249 - Drive Motor "A" Temperature Sensor Circuit High

DESCRIPTION

Refer to the description for DTC P0A2B-250 P0A2B.





HINT
After confirming that DTC P0A2C-247 or P0A2D-249 is output, use the Techstream to check "Motor Temp No1" in the power management control ECU Data List.





WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK CONNECTOR CONNECTION CONDITION (POWER MANAGEMENT CONTROL ECU CONNECTOR) P0340-886

NG -- CONNECT SECURELY
OK -- Continue to next step.

2. READ VALUE USING TECHSTREAM (MOTOR TEMP NO1)

(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 Temp No1.

(d) Read the Data List.

Result:





(e) Turn the power switch off.

B -- READ VALUE USING TECHSTREAM (CHECK FOR SHORT)

C -- CHECK FOR INTERMITTENT PROBLEMS Check For Intermittent Problems
A -- Continue to next step.

3. READ VALUE USING TECHSTREAM (CHECK FOR OPEN)

(a) Disconnect the motor temperature sensor connector.





(b) Connect terminals 2 (MMT) and 1 (MMTG) of vehicle side connector D8 of the motor temperature sensor.





(c) Connect the Techstream to the DLC3.

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

(e) Enter the following menus: Powertrain / Hybrid Control / Data List / Motor Temp No1.

(f) Read the Data List.

OK:





Text in Illustration





HINT
The motor temperature sensor is not available separately. If it requires replacement, replace the hybrid vehicle transaxle assembly.

(g) Turn the power switch off.

(h) Connect the motor temperature sensor connector.

NG -- CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - MOTOR TEMPERATURE SENSOR)

OK -- REPLACE HYBRID VEHICLE TRANSAXLE ASSEMBLY Components

4. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - MOTOR TEMPERATURE SENSOR)

(a) Connect terminals 24 (MMT) and 25 (MMTG) of connector A19 of the power management control ECU.





(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 Temp No1.

(e) Read the Data List.

OK:





Text in Illustration





(f) Turn the power switch off.

NG -- REPLACE POWER MANAGEMENT CONTROL ECU Components

OK -- REPAIR OR REPLACE HARNESS OR CONNECTOR

5. READ VALUE USING TECHSTREAM (CHECK FOR SHORT)

(a) Disconnect the motor temperature sensor connector.





(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 Temp No1.

(e) Read the Data List.

OK:





HINT
The motor temperature sensor is not available separately. If it requires replacement, replace the hybrid vehicle transaxle assembly.

(f) Turn the power switch off.

NG -- CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - MOTOR TEMPERATURE SENSOR)

OK -- REPLACE HYBRID VEHICLE TRANSAXLE ASSEMBLY Components

6. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - MOTOR TEMPERATURE SENSOR)

(a) Disconnect the motor temperature sensor connector.

(b) Disconnect connector A19 from the power management control ECU.

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





Standard Resistance (Check for Open):





Standard Resistance (Check for Short):





Text in Illustration





(d) Connect the power management control ECU connector.

(e) Connect the motor temperature sensor connector.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE POWER MANAGEMENT CONTROL ECU Components