Radio Receiver Assembly Communication Stop Mode [10/2023 - ]: Procedure

1. Disconnect the cable from the negative (-) battery terminal.
2. Disconnect the G186 radio receiver assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   G186-13 (CANH) - G186-14 (CANL)	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 G52 radio receiver assembly connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   G52-1 (GND1) - Body ground	Cable disconnected from negative (-) battery terminal	Below 1 Ω

3. Reconnect the cable to the negative (-) battery terminal.
4. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   G52-4 (+B1) - Body ground	Always	11 to 14 V
   G52-16 (ACC1) - Body ground	Engine switch on (ACC)	11 to 14 V
   	Engine switch off	Below 1 V
   G52-15 (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 RADIO RECEIVER ASSEMBLY. Refer to  REMOVAL [10/2022 - ] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)