RM36D0EC _51 Engine / Hybrid System _083048 HYBRID / BATTERY CONTROL _0709511 HYBRID CONTROL SYSTEM C

HYBRID / BATTERY CONTROL  HYBRID CONTROL SYSTEM  P0A3611  Generator Temperature Sensor Circuit Short to Ground  P0A3615  Generator Temperature Sensor Circuit Short to Auxiliary Battery or Open  


DTC SUMMARY

MALFUNCTION DESCRIPTION


These DTCs are stored when the generator 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


Generator temperature sensor malfunction
·

Internal generator temperature sensor malfunction

·

Open or short in generator temperature sensor


Wire harness between the generator 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 generator temperature sensor is malfunctioning and the self-protection function may not operate. Therefore under certain high load driving condition, the temperature of the generator (MG1) becomes high. If the self-protection function does not operate, the generator (MG1) may malfunction and cause the vehicle to enter fail-safe mode.



DESCRIPTION

C189867E17
0.76,2.104 0.885,2.302 0.125,0.198 10 false 0 2,2.875 3.406,3.094 1.406,0.219 10 false Temperature (°C (°F)) 0.885,2.375 1.083,2.573 0.198,0.198 10 false 10 1.26,2.375 1.458,2.573 0.198,0.198 10 false 15 2.406,2.375 2.604,2.573 0.198,0.198 10 false 30 2.792,2.375 2.99,2.573 0.198,0.198 10 false 35 1.646,2.375 1.844,2.573 0.198,0.198 10 false 20 2.021,2.375 2.219,2.573 0.198,0.198 10 false 25 0.677,1.521 0.875,1.719 0.198,0.198 10 false 50 0.594,0.948 0.865,1.146 0.271,0.198 10 false 100 3.146,2.375 3.344,2.573 0.198,0.198 10 false 40 0.063,0.5 1.26,0.771 1.198,0.271 10 false Resistance (kΩ) 0.865,2.542 1.208,2.74 0.344,0.198 10 false (50) 1.229,2.552 1.573,2.75 0.344,0.198 10 false (59) 1.615,2.552 1.958,2.75 0.344,0.198 10 false (68) 1.979,2.563 2.323,2.76 0.344,0.198 10 false (77) 2.385,2.573 2.729,2.771 0.344,0.198 10 false (86) 2.771,2.583 3.115,2.781 0.344,0.198 10 false (95) 3.063,2.583 3.406,2.781 0.344,0.198 10 false (104)

The resistance of the thermistor built into the generator temperature sensor changes in accordance with changes in generator (MG1) temperature. The lower the generator (MG1) temperature, the higher the thermistor resistance. Conversely, the higher the generator (MG1) temperature, the lower the resistance.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate Note
P0A3611 Generator Temperature Sensor Circuit Short to Ground Short to ground in the generator temperature sensor circuit
(1 trip detection logic)
·

Wire harness or connector

·

Hybrid vehicle control ECU assembly

·

Generator temperature sensor (Hybrid vehicle transaxle assembly)


Comes on Master Warning:
Comes on 		SAE Code:
P0A38
P0A3615 Generator Temperature Sensor Circuit Short to Auxiliary Battery or Open Open or short to +B in the generator temperature sensor circuit
(1 trip detection logic)
·

Wire harness or connector

·

Hybrid vehicle control ECU assembly

·

Generator temperature sensor (Hybrid vehicle transaxle assembly)


Comes on Master Warning:
Comes on 		SAE Code:
P0A39

Related Data List
DTC No. Data List
P0A3611 Generator Temperature
P0A3615

HINT:

After confirming that DTC P0A3611 or P0A3615 is output, use the GTS to check "Generator 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 hereEngine / Hybrid System>HYBRID / BATTERY CONTROL>HYBRID CONTROL SYSTEM>UTILITY

·

When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.

Click hereEngine / Hybrid System>HYBRID / BATTERY CONTROL>HYBRID CONTROL SYSTEM>DTC CHECK / CLEAR



1.

Connect the GTS to the DLC3.

2.

Turn the power switch on (IG) and turn the GTS 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 GTS on.

6.

With power switch on (IG) and wait for 5 seconds or more. [*1]

HINT:

[*1]: Normal judgment procedure.

The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.


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 the normal judgment procedure again.




WIRING DIAGRAM

A416702E54
2.302,1.177 2.76,1.375 0.458,0.198 10 false 5 1.802,1.927 2.563,2.25 0.76,0.323 10 false GMTG 1.906,1.177 2.667,1.5 0.76,0.323 10 false GMT 2.302,1.927 2.76,2.125 0.458,0.198 10 false 4 0.292,2.677 1.052,3 0.76,0.323 10 false C50 0.302,2.844 2.198,3.385 1.896,0.542 10 false Generator Temperature Sensor (Hybrid Vehicle Transaxle Assembly) 2.552,2.667 4.552,3.208 2,0.542 10 false No. 1 Engine Room Relay Block and Junction Block Assembly Connector 2.563,2.521 3.323,2.844 0.76,0.323 10 false CA3 3.021,1.156 3.781,1.479 0.76,0.323 10 false 10 3.042,1.917 3.802,2.24 0.76,0.323 10 false 22 4.604,1.167 5.365,1.49 0.76,0.323 10 false 45 4.865,1.167 5.625,1.49 0.76,0.323 10 false GMT 4.625,1.917 5.385,2.24 0.76,0.323 10 false 46 4.875,1.917 5.635,2.24 0.76,0.323 10 false GMTG 4.948,2.677 5.708,3 0.76,0.323 10 false A31 4.938,2.833 6.667,3.271 1.729,0.438 10 false Hybrid Vehicle Control ECU Assembly 5.958,1.302 6.719,1.625 0.76,0.323 10 false ADC 3.688,1.167 4.448,1.49 0.76,0.323 10 false 10 3.708,1.917 4.469,2.24 0.76,0.323 10 false 22

PROCEDURE

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

Click hereEngine / Hybrid System>HYBRID / BATTERY CONTROL>HYBRID CONTROL SYSTEM>P0A2A11

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



A

2.CHECK CONNECTOR CONNECTION CONDITION (NO. 1 ENGINE ROOM RELAY BLOCK AND JUNCTION BLOCK ASSEMBLY CA3 CONNECTOR)

B

CONNECT SECURELY

C

REPAIR OR REPLACE HARNESS OR CONNECTOR

2.CHECK CONNECTOR CONNECTION CONDITION (NO. 1 ENGINE ROOM RELAY BLOCK AND JUNCTION BLOCK ASSEMBLY CA3 CONNECTOR)

Click hereEngine / Hybrid System>HYBRID / BATTERY CONTROL>HYBRID CONTROL SYSTEM>P0A2A11

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



A

3.CHECK CONNECTOR CONNECTION CONDITION (GENERATOR TEMPERATURE SENSOR CONNECTOR)

B

CONNECT SECURELY

C

REPAIR OR REPLACE HARNESS OR CONNECTOR

3.CHECK CONNECTOR CONNECTION CONDITION (GENERATOR TEMPERATURE SENSOR CONNECTOR)
a.
C412473N01
1.927,0.438 2.25,0.646 0.323,0.208 1.927,0.448 2.24,0.625 0.313,0.177 10 true C50

Check the connection condition of the generator 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 hereGeneral>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



A

4.READ VALUE USING GTS (GENERATOR TEMPERATURE)

B

CONNECT SECURELY

C

REPAIR OR REPLACE HARNESS OR CONNECTOR

4.READ VALUE USING GTS (GENERATOR TEMPERATURE)
a.

Connect the GTS to the DLC3.


b.

Turn the power switch on (IG).


c.

Enter the following menus: Powertrain / Hybrid Control / Data List / Generator Temperature.


d.

Read the Data List.

Powertrain > Hybrid Control > Data List
Tester Display
Generator Temperature
50003 397 62
Result:
Result Proceed to
-40°C (-40°F) A
215°C (419°F) B
Same as actual temperature C



e.

Turn the power switch off.



A

5.INSPECT HYBRID VEHICLE TRANSAXLE ASSEMBLY (GENERATOR TEMPERATURE SENSOR)

B

7.INSPECT HYBRID VEHICLE TRANSAXLE ASSEMBLY (GENERATOR TEMPERATURE SENSOR)

C

REPAIR OR REPLACE HARNESS OR CONNECTOR

5.INSPECT HYBRID VEHICLE TRANSAXLE ASSEMBLY (GENERATOR TEMPERATURE SENSOR)
a.
C412473N01
1.927,0.438 2.25,0.646 0.323,0.208 1.927,0.448 2.24,0.625 0.313,0.177 10 true C50

Disconnect the C50 generator temperature sensor connector.


b.
A385118C37
1.156,1.729 1.292,1.323 true 1.646,1.75 1.521,1.313 true 0.219,0.177 0.531,0.375 0.313,0.198 10 false *a 0.958,1.75 1.385,1.979 0.427,0.229 10 false GMT 1.49,1.76 1.917,1.99 0.427,0.229 10 false GMTG
*a Component without harness connected
(Generator Temperature Sensor (Hybrid Vehicle Transaxle Assembly))


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

Standard Resistance:
Tester Connection Condition Specified Condition
5 (GMT) - 4 (GMTG) Power switch off 0.3338 to 1487 kΩ



c.

Reconnect the C50 generator temperature sensor connector.


Result:
Proceed to
OK
NG



OK

6.INSPECT HYBRID VEHICLE CONTROL ECU ASSEMBLY

NG

REPLACE HYBRID VEHICLE TRANSAXLE ASSEMBLY

Click hereDrivetrain>P710 (HYBRID TRANSMISSION / TRANSAXLE)>HYBRID VEHICLE TRANSAXLE>REMOVAL


6.INSPECT HYBRID VEHICLE CONTROL ECU ASSEMBLY
a.

Connect terminals 45 (GMT) and 46 (GMTG) of the A31 hybrid vehicle control ECU assembly connector.

A494164C77
2.563,0.323 2.906,0.573 0.344,0.25 2.385,1.646 3.219,2.333 true 2.24,1.646 2.563,2.333 true 0.104,0.115 0.417,0.313 0.313,0.198 10 false *a 2.625,0.375 3.083,0.573 0.458,0.198 10 false A31 2.396,2.396 2.885,2.646 0.49,0.25 10 false GMTG 3.115,2.365 3.729,2.563 0.615,0.198 10 false GMT
*a Component with harness connected
(Hybrid Vehicle Control ECU Assembly) 		- -



b.

Connect the GTS to the DLC3.


c.

Turn the power switch on (IG).


d.

Enter the following menus: Powertrain / Hybrid Control / Data List / Generator Temperature.


e.

Read the Data List.

Powertrain > Hybrid Control > Data List
Tester Display
Generator Temperature
50003 397 62
OK:
Tester Display Condition Specified Condition
Generator Temperature Terminals A31-45 (GMT) and A31-46 (GMTG) connected
Power switch on (IG) 		215°C (419°F)



f.

Turn the power switch off.


Result:
Proceed to
OK
NG



OK

REPAIR OR REPLACE HARNESS OR CONNECTOR

NG

REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLY

Click hereEngine / Hybrid System>HYBRID / BATTERY CONTROL>HYBRID VEHICLE CONTROL ECU>REMOVAL


7.INSPECT HYBRID VEHICLE TRANSAXLE ASSEMBLY (GENERATOR TEMPERATURE SENSOR)
a.
C412473N01
1.927,0.438 2.25,0.646 0.323,0.208 1.927,0.448 2.24,0.625 0.313,0.177 10 true C50

Disconnect the C50 generator temperature sensor connector.


b.
A385118C37
1.156,1.729 1.292,1.323 true 1.646,1.75 1.521,1.313 true 0.219,0.177 0.531,0.375 0.313,0.198 10 false *a 0.958,1.75 1.385,1.979 0.427,0.229 10 false GMT 1.49,1.76 1.917,1.99 0.427,0.229 10 false GMTG
*a Component without harness connected
(Generator Temperature Sensor (Hybrid Vehicle Transaxle Assembly))


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

Standard Resistance:
Tester Connection Condition Specified Condition
5 (GMT) - 4 (GMTG) Power switch off 0.3338 to 1487 kΩ



c.

Reconnect the C50 generator temperature sensor connector.


Result:
Proceed to
OK
NG



OK

8.CHECK HARNESS AND CONNECTOR (GENERATOR TEMPERATURE SENSOR - HYBRID VEHICLE CONTROL ECU ASSEMBLY)

NG

REPLACE HYBRID VEHICLE TRANSAXLE ASSEMBLY

Click hereDrivetrain>P710 (HYBRID TRANSMISSION / TRANSAXLE)>HYBRID VEHICLE TRANSAXLE>REMOVAL


8.CHECK HARNESS AND CONNECTOR (GENERATOR TEMPERATURE SENSOR - HYBRID VEHICLE CONTROL ECU ASSEMBLY)
a.

Disconnect the C50 generator temperature sensor connector.


b.

Disconnect the A31 hybrid vehicle control ECU assembly connector.


c.
A556744C04
1.521,0.229 1.833,0.49 0.313,0.26 1.531,2.156 1.917,2.417 0.385,0.26 2.104,1.615 1.979,1.135 true 1.667,1.615 1.854,1.135 true 1.969,4.156 2.25,3.635 true 2.438,4.115 2.406,3.656 true 0.156,0.115 0.469,0.313 0.313,0.198 10 false *a 0.208,2.219 0.521,2.417 0.313,0.198 10 false *b 1.563,0.281 1.875,0.479 0.313,0.198 10 false C50 1.604,2.219 1.917,2.417 0.313,0.198 10 false A31 2.073,1.656 2.531,1.885 0.458,0.229 10 false GMT 1.531,1.656 1.99,1.885 0.458,0.229 10 false GMTG 1.833,4.188 2.292,4.417 0.458,0.229 10 false GMT 2.365,4.167 2.823,4.396 0.458,0.229 10 false GMTG
*a Front view of wire harness connector
(to Generator Temperature Sensor)
*b Front view of wire harness connector
(to Hybrid Vehicle Control ECU Assembly)


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

Standard Resistance (Check for Open):
Tester Connection Condition Specified Condition
C50-5 (GMT) - A31-45 (GMT) Power switch off Below 1 Ω
C50-4 (GMTG) - A31-46 (GMTG) Power switch off Below 1 Ω


Standard Resistance (Check for Short):
Tester Connection Condition Specified Condition
C50-5 (GMT) or A31-45 (GMT) - Body ground and other terminals Power switch off 10 kΩ or higher
C50-4 (GMTG) or A31-46 (GMTG) - Body ground and other terminals Power switch off 10 kΩ or higher



d.

Reconnect the A31 hybrid vehicle control ECU assembly connector.


e.

Reconnect the C50 generator temperature sensor connector.


Result:
Proceed to
OK
NG



OK

REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLY

Click hereEngine / Hybrid System>HYBRID / BATTERY CONTROL>HYBRID VEHICLE CONTROL ECU>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR