LIGHTING SYSTEM IG Signal Circuit

DESCRIPTION

This circuit detects the ignition switch state (ON or off) and sends it to the main body ECU.

WIRING DIAGRAM

A01XMC2E37

CAUTION / NOTICE / HINT

Note

Inspect the fuses for circuits related to this system before performing the following inspection procedure.

PROCEDURE


  1. READ VALUE USING INTELLIGENT TESTER (IGNITION SWITCH)


    1. Using the intelligent tester, read the Data List Click here.

      Main Body
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      IG SW Ignition switch ON signal / ON or OFF

      ON: Ignition switch ON

      OFF: Ignition switch off

      		 -
      OK
      The display is as specified in the normal condition column.

    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here

    NG

  2. CHECK HARNESS AND CONNECTOR (BATTERY - MAIN BODY ECU)


    1. A01XKCWE01
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Main Body ECU)

      Remove the main body ECU Click here.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      A-32 (IG) - Body ground Ignition switch ON 11 to 14 V

    OK

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR