AUDIO AND VISUAL SYSTEM (for Radio Receiver Type) Mute Signal Circuit between Radio Receiver and Telematics Transceiver

DESCRIPTION

The telematics transceiver sends a mute signal to the radio receiver assembly.

The radio receiver assembly controls the volume according to the mute signal from the telematics transceiver.

WIRING DIAGRAM

B000JSKE97

INSPECTION PROCEDURE

Note

Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be necessary. Refer to Precaution for Audio and Visual System. Click here.

PROCEDURE


  1. INSPECT TELEMATICS TRANSCEIVER


    1. B000IAKE47
      Text in Illustration
      *a

      Component with harness connected

      (Telematics Transceiver)

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      I218-17 (MUTE) - Body ground

      Engine switch on (ACC)

      Audio system playing

      → Emergency call mode

      2.0 V or higher

      → Below 1 V


    NG
    OK
  2. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - TELEMATICS TRANSCEIVER)


    1. Disconnect the I148 radio receiver assembly connector.

    2. Disconnect the I218 telematics transceiver connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I148-8 (TMUT) - I218-17 (MUTE) Always Below 1 Ω
      I148-8 (TMUT) or I218-17 (MUTE) - Body ground Always 10 kΩ or higher

    NG
    OK
  3. INSPECT RADIO RECEIVER ASSEMBLY


    1. Disconnect the I218 telematics transceiver connector.

    2. B000JRFE46
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Telematics Transceiver)

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      I218-17 (MUTE) - Body ground Engine switch on (ACC) 2.0 V or higher

    NG
    OK