Multi-media Module Receiver Assembly Communication Stop Mode [08/2013 - ]: Procedure

1. Turn the engine switch off.
2. Disconnect the multi-media module receiver assembly connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   TEXT IN ILLUSTRATION
   
   

   *1	Front view of wire harness connector (to Multi-media Module Receiver Assembly)

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   J114-1 (CANH) - J114-2 (CANL)	Engine switch off	54 to 69 Ω

NG → REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (MULTI-MEDIA MODULE RECEIVER ASSEMBLY BRANCH WIRE) 

OK: Go to next step 

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

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   J114-12 (GND1) - Body ground	Always	Below 1 Ω

   TEXT IN ILLUSTRATION
   
   

   *1	Front view of wire harness connector (to Multi-media Module Receiver Assembly)

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

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   J114-17 (+B1) - Body ground	Always	11 to 14 V
   J114-16 (ACC1) - Body ground	Engine switch on (ACC)	11 to 14 V
   J114-15 (IG) - Body ground	Engine switch on (IG)	11 to 14 V

   Result

   Result	Proceed to
   OK (w/ Navigation system)	A
   OK (w/o Navigation system with multi-display)	B
   NG	C

B → See step   4 

C → REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT) 

A → See step   3