Inspection Procedure

1. Check the connections of all HV control ECU connectors.

   OK: 

   Connectors are connected securely and there is no poor connection. 

Fig 1: Checking Connection Condition Of Hybrid Vehicle Control ECU Connector (Looseness And Poor Contact)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: CONNECT SECURELY 

OK: GO TO NEXT STEP 

1. Turn the ignition switch to the ON position. Measure the voltage according to the value(s) in the table below.

   Result 

   HYBRID VEHICLE CONTROL ECU
   
   

   Tester Connection	Voltage	Proceed to
   GMT (H32-22) - GMTG (H32-32)	Approximately 0 V	A
   	9 to 14 V	B

   Fig 2: Inspecting Hybrid Vehicle Control ECU

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

A: Go to step   5 

B: GO TO NEXT STEP 

1. Disconnect the H32 connector from the HV control ECU.
2. Turn the ignition switch to the ON position.
3. Measure the voltage according to the value(s) in the table below.

   Result 

   +B SHORT
   
   

   Tester Connection	Voltage	Proceed to
   GMT (H32-22) - GMTG (H32-32)	Approximately 0 V	A
   	9 to 14 V	B

   NOTE: Turning the ignition switch to the ON position with the HV control ECU connectors disconnected causes other DTCs to be stored. Clear the DTCs after performing the inspection.
   Fig 3: Checking Harness And Connector (+B Short)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

A: REPLACE HYBRID VEHICLE CONTROL ECU 

B: GO TO NEXT STEP 

1. Remove the w/ converter inverter. (See INVERTER WITH CONVERTER )
2. Disconnect the H32 connector from the HV control ECU.
3. Disconnect the M13 generator temperature sensor connector.
4. Turn the ignition switch to the ON position.
   Fig 4: Identifying Generator Resolver Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
5. Measure the voltage according to the value(s) in the table below.

   Standard Voltage 

   +B SHORT
   
   

   Tester Connection	Specified Condition
   GMT (M13-4) - Body ground	Approximately 0 V

   Fig 5: Checking Harness And Connector (+B Short)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   NOTE: Turning the ignition switch to the ON position with the HV control ECU connectors disconnected causes other DTCs to be stored. Clear the DTCs after performing the inspection.

   HINT:

   The generator temperature sensor is not available as a single product. If it requires replacement, replace the HV transaxle assembly.

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: REPLACE HYBRID VEHICLE TRANSAXLE ASSEMBLY 

1. Disconnect the H32 connector from the HV control ECU.
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance 

   GENERATOR TEMPERATURE SENSOR (1 OF 2)
   
   

   Tester Connection	Resistance	Temperature
   GMT (H32-22) - GMTG (H32-32)	142.6 to 184.1 kΩ	0°C (32°F)
   	44.2 to 54.4 kΩ	25°C (77°F)
   	16.2 to 19.1 kΩ	50°C (122°F)
   	3.1 to 3.5 kΩ	100°C (212°F)

Fig 6: Inspecting Generator Temperature Sensor
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance 

   GENERATOR TEMPERATURE SENSOR (2 OF 2)
   
   

   Tester Connection	Specified Condition
   GMT (H32-22) or GMTG (H32-32) - Body ground	10 kΩ or higher

NG: REPLACE HYBRID VEHICLE CONTROL ECU 

NG: GO TO NEXT STEP 

1. Remove the w/ converter inverter. (See INVERTER WITH CONVERTER )
2. Disconnect the H32 connector from the HV control ECU.
3. Disconnect the M13 generator temperature sensor connector.
4. Measure the resistance according to the value(s) in the table below.

   Standard Resistance 

   HV CONTROL ECU - GENERATOR TEMPERATURE SENSOR (1 OF 2)
   
   

   Tester Connection	Specified Condition
   GMT (H32-22) - GMT (M13-4)	Below 1 Ω
   GMTG (H32-32) - GMTG (M13-9)	Below 1 Ω

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

   Standard Resistance 

   HV CONTROL ECU - GENERATOR TEMPERATURE SENSOR (2 OF 2)
   
   

   Tester Connection	Specified Condition
   GMT (H32-22) or GMTG (H32-32) - Body ground	10 kΩ or higher

   Fig 7: Checking Harness And Connector (HV Control ECU - Generator Temperature Sensor)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   HINT:

   The generator temperature sensor is not available as a single product. If it requires replacement, replace the HV transaxle assembly.

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: REPLACE HYBRID VEHICLE TRANSAXLE ASSEMBLY