G-BOOK SYSTEM (w/ Telematics Transceiver), Diagnostic DTC:B15C5

DTC Code DTC Name
B15C5 Manual Button Malfunction

DESCRIPTION

If the telematics transceiver detects an error in the communication between the telematics transceiver and the map light assembly as a result of the telematics transceiver self check, this DTC will be stored.

DTC No. DTC Detection Condition Trouble Area
B15C5 A problem with the emergency call switch is detected.

  • Map light assembly

  • Telephone switch assembly

  • Wire harness or connector

  • Telematics transceiver

WIRING DIAGRAM

A01NL07E01

INSPECTION PROCEDURE

Tech Tips

When replacing the telematics transceiver, perform the vehicle contract setting Click here.

PROCEDURE


  1. CLEAR DTC


    1. Clear the DTCs Click here.


    NEXT

  2. CHECK DTC


    1. Recheck for DTCs and check if the same DTC is output again Click here.

      OK
      No DTCs are output.

    NG

    CHECK MAP LIGHT ASSEMBLY Click here

    OK

    USE SIMULATION METHOD TO CHECK Click here

  3. CHECK MAP LIGHT ASSEMBLY


    1. A01NM5RE10
      Text in Illustration
      *a

      Component without harness connected

      (Map Light Assembly)

      Disconnect the T10 map light assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      T10-3 (SIG1) - T10-7 (GND3) Emergency call switch not operated 410 to 414 Ω
      T10-3 (SIG1) - T10-7 (GND3) Emergency call switch operated 81 to 83 Ω

    NG

    REPLACE TELEPHONE SWITCH ASSEMBLY Click here

    OK

  4. CHECK HARNESS AND CONNECTOR (TELEMATICS TRANSCEIVER - MAP LIGHT ASSEMBLY)


    1. Disconnect the G25 telematics transceiver connector.

    2. Disconnect the T10 map light assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G25-27 (SIG1) - T10-3 (SIG1) Always Below 1 Ω
      G25-26 (SIG-) - T10-7 (GND) Always Below 1 Ω
      G25-27 (SIG1) - Body ground Always 10 kΩ or higher
      G25-26 (SIG-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE TELEMATICS TRANSCEIVER Click here

  5. REPLACE TELEPHONE SWITCH ASSEMBLY


    1. Replace the telephone switch assembly with a known good one and check if the same problem occurs again Click here.


      1. Clear the DTCs Click here.

      2. Recheck for DTCs and check if the same DTC is output again.

        OK
        No DTCs are output.

    NG

    REPLACE MAP LIGHT ASSEMBLY Click here

    OK

    END (TELEPHONE SWITCH ASSEMBLY WAS DEFECTIVE)