LIN COMMUNICATION SYSTEM, Diagnostic DTC:B2661

DTC Code DTC Name
B2661 Lost Communication with Combination Meter

DESCRIPTION

This DTC is stored when LIN communication between the driving support switch control ECU and combination meter assembly stops 10 seconds or more.

DTC Code DTC Detection Condition Trouble Area
B2661 No communication between the driving support switch control ECU and combination meter assembly for 10 seconds or more.

  • Driving support switch control ECU

  • Combination meter assembly

  • Harness or connector

WIRING DIAGRAM

A01DLY8E32

INSPECTION PROCEDURE

Note


  • When using the intelligent tester with the ignition switch off to troubleshoot:

    Connect the intelligent tester to the vehicle and turn a courtesy light switch on and off at 1.5 second intervals until communication between the intelligent tester and vehicle begins.

  • Inspect the fuses and bulbs for circuits related to this system before performing the following inspection procedure.

PROCEDURE


  1. CLEAR DTC


    1. Clear the DTCs Click here.


    NEXT

  2. CHECK FOR DTC


    1. Check for DTCs Click here.

      OK
      DTC B2661 is not output.

    NG

    CHECK HARNESS AND CONNECTOR (DRIVING SUPPORT SWITCH CONTROL ECU - COMBINATION METER) Click here

    OK

    USE SIMULATION METHOD TO CHECK

  3. CHECK HARNESS AND CONNECTOR (DRIVING SUPPORT SWITCH CONTROL ECU - COMBINATION METER)


    1. for Manual Transmission


      1. Disconnect the G76 driving support switch control ECU connector.

      2. Disconnect the G6 combination meter assembly connector.

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        G76-5 (LIN) - G6-37 (LIN) Always Below 1 Ω
        G76-5 (LIN) or G6-37 (LIN) - Body ground Always 10 kΩ or higher

    2. for Automatic Transmission


      1. Disconnect the G162 driving support switch control ECU connector.

      2. Disconnect the G6 combination meter assembly connector.

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        G162-16 (LIN) - G6-37 (LIN) Always Below 1 Ω
        G162-16 (LIN) or G6-37 (LIN) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. CHECK HARNESS AND CONNECTOR (COMBINATION METER - BATTERY AND BODY GROUND)


    1. A01DU50E11
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Combination Meter Assembly)

      Disconnect the G6 combination meter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G6-21 (E2) - Body ground Always Below 1 Ω

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      G6-26 (B) - Body ground Always 11 to 14 V
      G6-28 (IG+) - Body ground Ignition switch ON 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. REPLACE COMBINATION METER ASSEMBLY


    1. Temporarily replace the combination meter assembly with a new or normally functioning one Click here.


    NEXT

  6. CLEAR DTC


    1. Clear the DTCs Click here.


    NEXT

  7. CHECK FOR DTC


    1. Check for DTCs Click here.


    NG

    REPLACE DRIVING SUPPORT SWITCH CONTROL ECU Click here

    OK

    END (COMBINATION METER IS DEFECTIVE)