TELEMATICS SYSTEM, Diagnostic DTC:B15C5

DTC Code DTC Name
B15C5 Emergency Switch Error (Open or Short)

DESCRIPTION

This DTC is stored when the telephone transceiver assembly detects an open or short circuit in the manual (SOS) switch.

DTC No. Detection Item DTC Detection Condition Trouble Area
B15C5 Emergency Switch Error (Open or Short) Open or short circuit in the manual (SOS) switch is detected.

  • Telephone transceiver assembly

  • Map light sub-assembly (manual (SOS) switch)

  • Harness or connector

WIRING DIAGRAM

B000Y22E11
*1 Manual (SOS) Switch
*2 Map Light Sub-assembly
*3 Telephone Transceiver Assembly

CAUTION / NOTICE / HINT

Note


  • Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Registration for Telematics System.

    Click here

  • When replacing the telephone transceiver assembly, make sure to replace it with a new one.

PROCEDURE


  1. CHECK FOR DTC


    1. Turn the engine switch off.

    2. Connect the GTS to the DLC3.

    3. Turn the engine switch on (IG) and wait for 20 seconds.

    4. Turn the GTS on.

    5. Check for DTCs and check that no DTCs are output.

      Click here


      Body Electrical > Telematics > Trouble Codes
      OK
      No DTCs are output.
      Result
      Proceed to
      OK
      NG

    OK

    USE SIMULATION METHOD TO CHECK Click here

    NG

  2. CHECK MAP LIGHT SUB-ASSEMBLY (MANUAL (SOS) SWITCH)


    1. B000Z8YC03
      *a

      Component without harness connected

      (Map Light Sub-assembly [Manual (SOS) Switch])

      Remove the map light sub-assembly (manual (SOS) switch).

      Click here

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      6 (SIG1) - 10 (GND3) Manual (SOS) switch not pressed 392 to 432 Ω
      6 (SIG1) - 10 (GND3) Manual (SOS) switch pressed 78 to 86 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE MAP LIGHT SUB-ASSEMBLY (MANUAL (SOS) SWITCH) Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (TELEPHONE TRANSCEIVER ASSEMBLY - MAP LIGHT SUB-ASSEMBLY [MANUAL (SOS) SWITCH])


    1. Disconnect the P48 telephone transceiver assembly connector.

    2. Disconnect the Z3 map light sub-assembly (manual (SOS) switch) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      P48-27 (SIG1) - Z3-6 (SIG1) Always Below 1 Ω
      P48-26 (SIG-) - Z3-10 (GND3) Always Below 1 Ω
      P48-27 (SIG1) or Z3-6 (SIG1) - Body ground Always 10 kΩ or higher
      P48-26 (SIG-) or Z3-10 (GND3) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. REPLACE TELEPHONE TRANSCEIVER ASSEMBLY


    1. Replace the telephone transceiver assembly with a new one.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

    PERFORM REGISTRATION Click here