HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for LITHIUM-ION BATTERY): P0A361C,P0A361F; Generator Temperature Sensor Voltage Out of Range; 2020 - 2025 MY RAV4 HV [06/2020

Last Modified: 05-08-2025	6.11:8.1.0	Doc ID: RM100000001OBCV
Model Year Start: 2020	Model: RAV4 HV	Prod Date Range: [06/2020 - ]
Title: HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for LITHIUM-ION BATTERY): P0A361C,P0A361F; Generator Temperature Sensor Voltage Out of Range; 2020 - 2025 MY RAV4 HV [06/2020 - ]

DTC

P0A361C

Generator Temperature Sensor Voltage Out of Range

DTC

P0A361F

Generator Temperature Sensor Circuit Intermittent

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

Refer to the description for DTC P0A3611.

Click here

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Warning Indicate

P0A361C

Generator Temperature Sensor Voltage Out of Range

After a long soak, the value of the generator (MG1) temperature sensor is different from the value of the other temperature sensors.

(2 trip detection logic)

Wire harness or connector
Generator temperature sensor (Hybrid vehicle transaxle assembly)

Comes on

Master Warning:

Comes on

P0A361F

Generator Temperature Sensor Circuit Intermittent

Sudden change in generator temperature sensor output or hunting:

Unusual sudden change in generator temperature sensor output occurs and offset condition continues for a certain period of time, or unusual change in motor temperature sensor output occurs repeatedly.

(1 trip detection logic)

Wire harness or connector
Generator temperature sensor (Hybrid vehicle transaxle assembly)

Comes on

Master Warning:

Comes on

Related Data List

DTC No.	Data List
P0A361C	Generator Temperature Motor Temperature Inverter Coolant Water Temperature
P0A361F	Generator Temperature

MONITOR DESCRIPTION

If the hybrid vehicle control ECU assembly detects a malfunction of the generator temperature sensor, it will illuminate the MIL and store a DTC.

MONITOR STRATEGY

Related DTCs	P0A37 (INF P0A361C): Generator Temperature Sensor Circuit Range/Performance P0A3A (INF P0A361F): Generator Temperature Sensor Circuit Intermittent
Required sensors/components	Generator temperature sensor
Frequency of operation	Continuous
Duration	TMC's intellectual property
MIL operation	2 driving cycle / 1 driving cycle
Sequence of operation	None

TYPICAL ENABLING CONDITIONS

The monitor will run whenever the following DTCs are not stored	TMC's intellectual property
Other conditions belong to TMC's intellectual property	-

TYPICAL MALFUNCTION THRESHOLDS

TMC's intellectual property

COMPONENT OPERATING RANGE

Hybrid vehicle control ECU assembly

DTC P0A37 (INF P0A361C) is not detected

DTC P0A3A (INF P0A361F) is not detected

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

DTC P0A361C

Connect the Techstream to the DLC3.
Turn the ignition switch to ON and turn the Techstream on.
Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
Turn the ignition switch off.
Leave the vehicle as is for 5 hours or more and then check the values of the Data List items "Generator Temperature", "Motor Temperature" and "Inverter Coolant Water Temperature". [*1]
Turn the ignition switch to ON and turn the Techstream on. [*2]
HINT:

[*1] to [*2]: Normal judgment procedure.

The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
Enter the following menus: Powertrain / Hybrid Control / Utility / All Readiness.
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.

DTC P0A361F

Connect the Techstream to the DLC3.
Turn the ignition switch to ON and turn the Techstream on.
Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
Turn the ignition switch off and wait for 2 minutes or more.
Turn the ignition switch to ON and turn the Techstream on.
With ignition switch ON 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.
Enter the following menus: Powertrain / Hybrid Control / Utility / All Readiness.
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

Refer to the wiring diagram for DTC P0A3611.

Click here

PROCEDURE

1.	CHECK DTC OUTPUT (ENGINE)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(d) Check for DTCs.

Powertrain > Engine > Trouble Codes

Result	Proceed to
No DTCs are output, or DTCs except the ones in the table below are also output.	A
Any of the following DTCs are also output.	B

Relevant DTC
P261029	ECM/PCM Engine Off Timer Performance Signal Invalid

(e) Turn the ignition switch off.

GO TO DTC CHART (SFI SYSTEM)

2.	CHECK DTC OUTPUT (HYBRID CONTROL)

(a) Check for DTCs.

Powertrain > Hybrid Control > Trouble Codes

Result	Proceed to
No DTCs are output, or DTCs except the ones in the table below are also output.	A
Any of the following DTCs are also output.	B

Relevant DTC
P0A3611	Generator Temperature Sensor Circuit Short to Ground
P0A3615	Generator Temperature Sensor Circuit Short to Auxiliary Battery or Open

(b) Turn the ignition switch off.

GO TO DTC CHART (HYBRID CONTROL SYSTEM)

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

Click here

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

CONNECT SECURELY

REPAIR OR REPLACE HARNESS OR CONNECTOR

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

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

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
A29-48 (GMT) - A29-47 (GMTG)	Ignition switch off	0.3338 to 1487 kΩ

*a	Front view of wire harness connector (to Hybrid Vehicle Control ECU Assembly)

GO TO STEP 9

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

Click here

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

CONNECT SECURELY

REPAIR OR REPLACE HARNESS OR CONNECTOR

6.	CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU ASSEMBLY - NO. 1 ENGINE ROOM RELAY BLOCK AND JUNCTION BLOCK ASSEMBLY)

(a) Disconnect the CA3 No. 1 engine room relay block and junction block assembly connector.

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

HINT:

When performing the measurement, lightly jiggle the wire harness up and down and left and right and confirm that the resistance does not fluctuate.

Standard Resistance (Check for Open):

Tester Connection	Condition	Specified Condition
CA3-10 (GMT) - A29-48 (GMT)	Ignition switch off	Below 1 Ω
CA3-22 (GMTG) - A29-47 (GMTG)	Ignition switch off	Below 1 Ω

Standard Resistance (Check for Short):

Tester Connection	Condition	Specified Condition
CA3-10 (GMT) or A29-48 (GMT) - Body ground and other terminals	Ignition switch off	10 kΩ or higher
CA3-22 (GMTG) or A29-47 (GMTG) - Body ground and other terminals	Ignition switch off	10 kΩ or higher

Component without harness connected

(No. 1 Engine Room Relay Block and Junction Block Assembly)

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 CA3 No. 1 engine room relay block and junction block assembly connector.

REPAIR OR REPLACE HARNESS OR CONNECTOR

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

Click here

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

CONNECT SECURELY

REPAIR OR REPLACE HARNESS OR CONNECTOR

8.	CHECK HARNESS AND CONNECTOR (NO. 1 ENGINE ROOM RELAY BLOCK AND JUNCTION BLOCK ASSEMBLY - GENERATOR TEMPERATURE SENSOR)

(a) Disconnect the C50 generator temperature sensor connector.

(b) Disconnect the CA3 No. 1 engine room relay block and junction block assembly connector.

Standard Resistance (Check for Open):

Tester Connection	Condition	Specified Condition
CA3-10 (GMT) - C50-5 (GMT)	Ignition switch off	Below 1 Ω
CA3-22 (GMTG) - C50-4 (GMTG)	Ignition switch off	Below 1 Ω

Standard Resistance (Check for Short):

Tester Connection	Condition	Specified Condition
CA3-10 (GMT) - C50-5 (GMT) - Body ground and other terminals	Ignition switch off	10 kΩ or higher
CA3-22 (GMTG) - C50-4 (GMTG) - Body ground and other terminals	Ignition switch off	10 kΩ or higher

Front view of wire harness connector

(to Generator Temperature Sensor)

Front view of wire harness connector

(to No. 1 Engine Room Relay Block and Junction Block Assembly)

(d) Reconnect the CA3 No. 1 engine room relay block and junction block assembly connector.

(e) Reconnect the C50 generator temperature sensor connector.

REPLACE HYBRID VEHICLE TRANSAXLE ASSEMBLY

REPAIR OR REPLACE HARNESS OR CONNECTOR

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

(a) Disconnect the CA3 No. 1 engine room relay block and junction block assembly connector.

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
CA3-10 (GMT) - CA3-22 (GMTG)	Ignition switch off	0.3338 to 1487 kΩ

*a	Front view of wire harness connector (to No. 1 Engine Room Relay Block and Junction Block Assembly)

REPAIR OR REPLACE HARNESS OR CONNECTOR (HYBRID VEHICLE CONTROL ECU ASSEMBLY - NO. 1 ENGINE ROOM RELAY BLOCK AND JUNCTION BLOCK ASSEMBLY)

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

Click here

REPAIR OR REPLACE HARNESS OR CONNECTOR (NO. 1 ENGINE ROOM RELAY BLOCK AND JUNCTION BLOCK ASSEMBLY - GENERATOR TEMPERATURE SENSOR)

REPLACE HYBRID VEHICLE TRANSAXLE ASSEMBLY