Audio Receiver Assembly Communication Stop Mode [10/2014 - ]: Procedure

1. Disconnect the cable from the negative (-) battery terminal.
2. Disconnect the E5 radio and display receiver assembly connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   TEXT IN ILLUSTRATION
   
   

   *a	Front view of wire harness connector (to Radio and Display Receiver Assembly)

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   E5-9 (CANH) - E5-10 (CANL)	Cable disconnected from negative (-) battery terminal	54 to 69 Ω

NG 

REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY) 

OK 

See step  2

1. Disconnect the E1 radio and display receiver assembly connector.
2. Measure the resistance according to the value (s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   TEXT IN ILLUSTRATION
   
   

   *a	Front view of wire harness connector (to Radio and Display Receiver Assembly)

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   E1-7 (GND1) - Body ground	Cable disconnected from negative (-) battery terminal	Below 1 Ω

3. Connect 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
   E1-3 (ACC1) - Body ground	Engine switch on (ACC)	11 to 14 V
   E1-4 (+B1) - Body ground	Always	11 to 14 V
   E5-1 (IG) - Body ground	Engine switch on (IG)	11 to 14 V

OK 

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY 

Refer to REMOVAL [10/2014 - ] )

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)