Restraints Occupant Classification System Module Communication Stop Mode [12/2017 - 10/2020]: Procedure

1. Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
2. Disconnect the Q41 occupant detection ECU connector.

   Refer to PRECAUTION [12/2017 - 10/2020]

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   Q41-5 (CANH) - Q41-4 (CANL)	Cable disconnected from negative (-) battery terminal	54 to 69 Ω

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE CAN BUS BRANCH WIRE AND CONNECTOR 

Result: 

OK 

See step  2

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   Q41-10 (GND) - Body ground	Cable disconnected from negative (-) battery terminal	Below 1 Ω

2. Reconnect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
   NOTE:

   When disconnecting the cable, some systems need to be initialized after the cable is reconnected.

   Refer to INITIALIZATION [12/2017 - 09/2018] , or refer to INITIALIZATION [09/2018 - 10/2020]

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

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   Q41-6 (IG) - Body ground	Engine switch on (IG)	11 to 14 V
   	Engine switch off	Below 1 V

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE OCCUPANT DETECTION ECU. Refer to  REMOVAL [12/2017 - 09/2018]  , or refer to  REMOVAL [09/2018 - 10/2020] 

Result: 

NG 

REPLACE HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)