Shift Control ECU Communication Stop Mode [12/2017 - 10/2020]: Procedure

1. Disconnect the cable from the negative (-) battery terminal.
   NOTE:

   Perform shift control ECU removal and connector disconnection procedures with the power supply from the sub-battery turned off.

   for 2WD: Refer to REMOVAL [12/2017 - 09/2018] , or refer to REMOVAL [09/2018 - 10/2020]

   for AWD: Refer to REMOVAL [12/2017 - 09/2018] , or refer to REMOVAL [09/2018 - 10/2020]

2. Disconnect the G81 shift control ECU connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   G81-9 (CA1H) - G81-8 (CA1L)	Cable disconnected from negative (-) battery terminal	54 to 69 Ω

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE CAN BRANCH WIRE OR CONNECTOR 

Result: 

OK 

See step  2

1. Disconnect the G82 shift control ECU connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   G81-1 (E1) - Body ground	Cable disconnected from negative (-) battery terminal	Below 1 Ω
   G81-11 (EC) - Body ground	Cable disconnected from negative (-) battery terminal	Below 1 Ω
   G82-4 (E03) - Body ground	Cable disconnected from negative (-) battery terminal	Below 1 Ω
   G82-5 (E02) - Body ground	Cable disconnected from negative (-) battery terminal	Below 1 Ω
   G82-6 (E01) - Body ground	Cable disconnected from negative (-) battery terminal	Below 1 Ω
   G82-17 (E12) - Body ground	Cable disconnected from negative (-) battery terminal	Below 1 Ω

3. Reconnect the cable to the negative (-) battery terminal.
   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]

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

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   G82-1 (BATT) - Body ground	Always	8 to 15.4 V
   G81-10 (BUB) - Body ground	5 seconds after engine switch on (IG)*	8 to 15.4 V
   G81-18 (ACC) - Body ground	Engine switch on (ACC)	6 V or higher
   	Engine switch off	Below 1 V
   G81-27 (IG2) - Body ground	Engine switch on (IG)	6 V or higher
   	Engine switch off	Below 1 V

   *: Power is supplied from the sub-battery assembly with control for only 5 seconds after the engine switch is turned on (IG). Therefore, measure the voltage during that time.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE SHIFT CONTROL ECU 

for 2WD: Refer to REMOVAL [12/2017 - 09/2018] , or refer to REMOVAL [09/2018 - 10/2020]

for AWD: Refer to REMOVAL [12/2017 - 09/2018] , or refer to REMOVAL [09/2018 - 10/2020]

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)