LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2017 >> GS 350 Base, AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> Can Communication System (Circuit Tests) (2 Of 3) >> Can Communication System >> Circuit Tests >> Combination Meter ECU Communication Stop Mode [09/2014 - 10/2015] >> Procedure

Combination Meter ECU Communication Stop Mode [09/2014 - 10/2015]: Procedure

  1. CHECK FOR OPEN IN CAN BUS WIRE (COMBINATION METER ASSEMBLY CAN BRANCH WIRE) 
    1. Disconnect the cable from the negative (-) battery terminal.
      GTY530756Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect the combination meter assembly connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      N40-28 (CANH) - N40-29 (CANL) Cable disconnected from negative (-) battery terminal 54 to 69 Ω
      TEXT IN ILLUSTRATION

      *a Rear view of wire harness connector
      (to Combination Meter Assembly)

    Result: 

    NG 

    REPAIR OR REPLACE COMBINATION METER ASSEMBLY CAN BRANCH WIRE OR CONNECTOR (CANH, CANL) 

    Result: 

    OK 

    See step  2

  2. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - BATTERY AND BODY GROUND) 
    1. Connect the cable to the negative (-) battery terminal.
      GTY523257Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

      When connecting the cable, some systems need to be initialized after the cable is reconnected (Refer to INITIALIZATION [09/2014 - 10/2015] ).

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

      Standard Voltage

      Tester Connection Condition Specified Condition
      N40-22 (B) - Body ground Always 11 to 14 V
      N40-21 (IG+) - Body ground Engine 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
      N40-30 (ES) - Body ground Always Below 1 Ω
      TEXT IN ILLUSTRATION

      *a Rear view of wire harness connector
      (to Combination Meter Assembly)

    Result: 

    OK 

    REPLACE COMBINATION METER ASSEMBLY 

    (Refer to REMOVAL [09/2014 - ] )

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR