G-BOOK SYSTEM Emergency Call Switch Illumination Circuit

WIRING DIAGRAM

A01H1C5E22

INSPECTION PROCEDURE

Tech Tips

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

PROCEDURE


  1. INSPECT HARNESS AND CONNECTOR (TELEMATICS TRANSCEIVER - MAP LIGHT ASSEMBLY)


    1. Disconnect the L127 telematics transceiver connector.

    2. Disconnect the X4 map light assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      L127-18 (SIG1) - X4-30 (SIG1) Always Below 1 Ω
      L127-19 (SIG-) - X4-32 (GND3) Always Below 1 Ω
      L127-18 (SIG1) - Body ground Always 10 kΩ or higher
      L127-19 (SIG-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. INSPECT MAP LIGHT ASSEMBLY


    1. Remove the map light assembly Click here.

    2. Connect 4 1.5 V dry-cell batteries in series.

    3. A01GY7RE03

      Connect a positive (+) lead from the batteries to terminal 30 (SIG1), and a negative (-) lead to terminal 32 (GND3) of the map light assembly connector.

    4. Check if the illumination for the emergency call switch comes on.

      OK
      Illumination for the emergency call switch comes on.

    NG

    REPLACE MAP LIGHT ASSEMBLY Click here

    OK

    REPLACE TELEMATICS TRANSCEIVER Click here