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

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

2. CHECK CONNECTOR CONNECTION CONDITION (ENGINE ROOM JUNCTION BLOCK ASSEMBLY)

(a) Check the connections of the engine room junction block assembly connectors.

OK:

The connectors are connected securely and there are no contact problems.

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

3. 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.

C -- CHECK FOR INTERMITTENT PROBLEMS Check For Intermittent Problems

B -- READ VALUE USING TECHSTREAM (CHECK FOR SHORT)
A -- Continue to next step.

4. READ VALUE USING TECHSTREAM (CHECK FOR OPEN)

(a) Disconnect connector DA1 from the engine room junction block assembly.

(b) Connect terminals DA1-B11 (MMT) and DA1-B10 (MMTG) of the engine room junction block assembly.

(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.

Result:

Text in Illustration

(g) Turn the power switch off.

(h) Connect the engine room junction block assembly connector.

NG -- CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - ENGINE ROOM JUNCTION BLOCK)
OK -- Continue to next step.

5. CHECK HARNESS AND CONNECTOR (MOTOR TEMPERATURE SENSOR - ENGINE ROOM JUNCTION BLOCK)

(a) Disconnect connector DA1 from the engine room junction block assembly.

(b) Remove the inverter with converter assembly Components.

(c) Disconnect the motor temperature sensor connector.

(d) 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

(e) Connect the motor temperature sensor connector.

(f) Install the inverter with converter assembly.

(g) Connect the engine room junction block assembly connector.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE HYBRID VEHICLE TRANSAXLE ASSEMBLY Components

6. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - ENGINE ROOM JUNCTION BLOCK)

(a) Connect terminals 24 (MMT) and 25 (MMTG) of the connector A80 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.

Result:

Text in Illustration

(f) Turn the power switch off.

NG -- REPLACE POWER MANAGEMENT CONTROL ECU Components

OK -- REPAIR OR REPLACE HARNESS OR CONNECTOR

7. READ VALUE USING TECHSTREAM (CHECK FOR SHORT)

(a) Disconnect connector from the engine room junction block assembly.

(f) Turn the power switch off.

NG -- CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - ENGINE ROOM JUNCTION BLOCK)
OK -- Continue to next step.

8. CHECK HARNESS AND CONNECTOR (ENGINE ROOM JUNCTION BLOCK - MOTOR TEMPERATURE SENSOR)

(a) Disconnect connector DA1 from the engine room junction block assembly.

(b) Remove the inverter with converter assembly Components.

(c) Disconnect the motor temperature sensor connector.

(d) 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

(e) Connect the motor temperature sensor connector.

(f) Install the inverter with converter assembly.

(g) Connect the engine room junction block assembly connector.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE HYBRID VEHICLE TRANSAXLE ASSEMBLY Components

9. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - ENGINE ROOM JUNCTION BLOCK)

(a) Disconnect connector DA1 from the engine room junction block assembly.

(b) Disconnect connector A80 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 engine room junction block assembly connector.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE POWER MANAGEMENT CONTROL ECU Components