Multimedia Module Receiver Assembly Communication Stop Mode: Procedure

1. Turn the engine switch off.
2. Disconnect the multimedia module receiver assembly connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   TEXT IN ILLUSTRATION
   
   

   *1	Front view of wire harness connector (to Multimedia 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 (MULTIMEDIA 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 Multimedia 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