TELEMATICS SYSTEM, Diagnostic DTC:B15C5

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

DESCRIPTION

This DTC is stored when the telematics transceiver 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.

  • Telematics Transceiver

  • Map light assembly (manual (SOS) switch)

  • Wire harness or connector

WIRING DIAGRAM

E353339E08

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.

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PROCEDURE

  1. CHECK DTC

    1. Turn the ignition switch off.

    2. Connect the GTS to the DLC3.

    3. Turn the ignition switch to ON 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

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    NG

  2. INSPECT MAP LIGHT ASSEMBLY (MANUAL (SOS) SWITCH)

    1. Remove the map light assembly (manual (SOS) switch).

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    2. E303110C14

      *a

      Component without harness connected

      (Map Light Assembly (Manual (SOS) Switch))

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      9 (SIG1) - 10 (GND)

      Manual (SOS) switch not pressed

      392 to 432 Ω

      9 (SIG1) - 10 (GND)

      Manual (SOS) switch pressed

      78 to 86 Ω

    Result

    Proceed to

    OK

    NG
    NG

    REPLACE MAP LIGHT ASSEMBLY (MANUAL (SOS) SWITCH)

    Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (TELEMATICS TRANSCEIVER - MAP LIGHT ASSEMBLY (MANUAL (SOS) SWITCH))

    1. Disconnect the M38 telematics transceiver connector.

    2. Disconnect the Q16 map light 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

      M38-27 (SIG1) - Q16-9 (SIG1)

      Always

      Below 1 Ω

      M38-26 (SIG-) - Q16-10 (GND)

      Always

      Below 1 Ω

      M38-27 (SIG1) or Q16-9 (SIG1) - Body ground

      Always

      10 kΩ or higher

      M38-26 (SIG-) or Q16-10 (GND) - Body ground

      Always

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. REPLACE TELEMATICS TRANSCEIVER

    1. Replace the telematics transceiver with a new one.

      Click here

    Result

    Proceed to

    NEXT
    NEXT

    PERFORM REGISTRATION

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