Inspection Procedure

1. Turn the intelligent tester to the DLC3.
2. Turn the ignition switch to the ON position.
3. Select the following menu items: DIAGNOSIS / OBD/ MOBD / HV ECU / DTC INFO / CLEAR CODES.

1. Select the following menu items: DIAGNOSIS / OBD/ MOBD / HV ECU / DTC INFO / CURRENT CODES.
2. Read output DTC. (See DTC CHECK / CLEAR )

   Result: 

   DTC P3107-215 is output again. 

YES: Go to step   4 

NO: GO TO NEXT STEP 

NEXT: REPLACE AIR BAG SENSOR ASSEMBLY CENTER 

1. Connect the oscilloscope to the HV control ECU terminals specified in the table below and check the waveform.
   HYBRID VEHICLE CONTROL ECU
   
   

   Item	Contents
   Terminals	ABFS (H29-8) - E1 (H31-5)
   Equipment Setting	5 V/DIV, 500 ms/DIV
   Condition	READY ON

   Fig 1: Inspecting Hybrid Vehicle Control ECU

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   OK: 

   The waveform appears as shown in the illustration. 

OK: REPLACE HYBRID VEHICLE CONTROL ECU 

NG: GO TO NEXT STEP 

1. Turn the ignition switch off.
2. Connect the H29 connector to the HV control ECU.
3. Disconnect the A20 connector from the airbag sensor assembly CTR.
4. Measure the voltage according to the value(s) in the table below when the ignition switch is in the ON position.

   Standard voltage 

   HV CONTROL ECU - AIR BAG SENSOR ASSEMBLY CENTER (VOLTAGE)
   
   

   Tester Connection	Specified Condition
   ABFS (H29-8) - Body ground	Below 1 V

5. Turn the ignition switch off.
6. Measure the resistance according to the value(s) in the table below.

   Standard Resistance (Check for open) 

   HV CONTROL ECU - AIR BAG SENSOR ASSEMBLY CENTER (CHECK FOR OPEN)
   
   

   Tester Connection	Specified Condition
   BFS (H29-8) - GSW2 (H20-23)	Below 1 Ω

   Standard Resistance (Check for short) 

   HV CONTROL ECU - AIR BAG SENSOR ASSEMBLY CENTER (CHECK FOR SHORT)
   
   

   Tester Connection	Specified Condition
   BFS (H29-8) or GSW2 (H20-23)	10 kΩ or higher

   Fig 2: Checking Harness And Connector (HV Control ECU - Airbag Sensor Assembly Center)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: REPLACE AIR BAG SENSOR ASSEMBLY CENTER