CXPI COMMUNICATION SYSTEM, Diagnostic DTC:B2362

DTC Code DTC Name
B2362 Lost Communication with overhead Module

DESCRIPTION

This DTC is stored when CXPI communication between the map light sub-assembly and main body ECU (multiplex network body ECU) stops for 10 seconds or more.

DTC No. Detection Item DTC Detection Condition Trouble Area
B2362 Lost Communication with overhead Module No communication between map light sub-assembly and main body ECU (multiplex network body ECU) for 10 seconds or more

  • Map light sub-assembly

  • Harness or connector

  • Main body ECU (multiplex network body ECU)

WIRING DIAGRAM

B006CI6E01
*1 Main Body ECU (Multiplex Network Body ECU)
*2 from Engine Stop and Start ECU
*3 Map Light Sub-assembly
*4 CXPI Communication Line

CAUTION / NOTICE / HINT

Note


  • When using the GTS with the engine switch off to troubleshoot:

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

  • Recognition code registration is necessary when replacing the main body ECU (multiplex network body ECU).

  • If the main body ECU (multiplex network body ECU) is replaced, refer to the Service Bulletin.

PROCEDURE


  1. CLEAR DTC


    1. Clear the DTCs.

      Click here


      Body Electrical > Main Body > Clear DTCs
      Result
      Proceed to
      NEXT

    NEXT

  2. CHECK FOR DTC


    1. Check for DTCs.

      Click here


      Body Electrical > Main Body > Trouble Codes
      Result
      Proceed to
      DTC B2362 is output
      DTC B2362 is not output

    DTC B2362 is not output

    USE SIMULATION METHOD TO CHECK Click here

    DTC B2362 is output

  3. CHECK HARNESS AND CONNECTOR (MAP LIGHT SUB-ASSEMBLY - BATTERY AND BODY GROUND)


    1. Disconnect the N7 map light sub-assembly connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      N7-19 (+B) - Body ground Always 10.5 to 16 V

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      N7-22 (GND) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. CHECK HARNESS AND CONNECTOR (MAP LIGHT SUB-ASSEMBLY - MAIN BODY ECU [MULTIPLEX NETWORK BODY ECU])


    1. Disconnect the G13 main body ECU (multiplex network body ECU) connector.

    2. Disconnect the N7 map light sub-assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G13-11 (CXP2) - N7-20 (MPX) Always Below 1 Ω
      G13-11 (CXP2) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. REPLACE MAP LIGHT SUB-ASSEMBLY


    1. Temporarily replace the map light sub-assembly with a new or normally functioning one.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  6. CLEAR DTC


    1. Clear the DTCs.

      Click here


      Body Electrical > Main Body > Clear DTCs
      Result
      Proceed to
      NEXT

    NEXT

  7. CHECK FOR DTC


    1. Check for DTCs.

      Click here


      Body Electrical > Main Body > Trouble Codes
      Result
      Proceed to
      DTC B2362 is output
      DTC B2362 is not output

    DTC B2362 is output

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here

    DTC B2362 is not output

    END (MAP LIGHT SUB-ASSEMBLY IS DEFECTIVE)