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Multi-media Module Receiver Assembly Communication Stop Mode: Procedure

  1. CHECK FOR OPEN IN CAN BUS WIRE (MULTI-MEDIA MODULE RECEIVER ASSEMBLY CAN BRANCH WIRE) 
    1. Disconnect the cable from the negative (-) auxiliary battery terminal.
      GTY412527Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect the multi-media module receiver assembly connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      N68-1 (CANH) - N68-2 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 54 to 69 Ω
      TEXT IN ILLUSTRATION

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

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

    OK: Go to next step 

  2. CHECK HARNESS AND CONNECTOR (MULTI-MEDIA MODULE RECEIVER ASSEMBLY - BATTERY AND BODY GROUND) 
    1. Connect the cable to the negative (-) auxiliary battery terminal.
      GTY412526Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

      When connecting the cable, some systems need to be initialized after the cable is reconnected. Refer to INITIALIZATION [03/2012 - ] .

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

      Standard Voltage

      Tester Connection Condition Specified Condition
      N68-17 (+B1) - Body ground Always 11 to 14 V
      N68-16 (ACC1) - Body ground Power switch on (ACC) 11 to 14 V
      N68-15 (IG) - Body ground Power switch on (IG) 11 to 14 V
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      N68-12 (GND1) - Body ground Always Below 1 Ω
      TEXT IN ILLUSTRATION

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

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK → See step   3 

  3. REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY. Refer to  REMOVAL [03/2012 - ]