ENGINE IMMOBILISER SYSTEM(w/o Entry and Start System) ECU Power Source Circuit

DESCRIPTION

This circuit provides power to operate the transponder key ECU.

WIRING DIAGRAM

A004TQ0E13
*a from Battery
*b from IG2 Relay
*c Transponder Key ECU

CAUTION / NOTICE / HINT

Note

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

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (TRANSPONDER KEY ECU - BATTERY AND BODY GROUND)


    1. A004UAKE02
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Transponder Key ECU)

      Disconnect the D102 ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      D102-16 (GND) - Body ground Always Below 1 Ω
      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      D102-1 (+B) - Body ground Always 11 to 14 V
      D102-2 (IG) - Body ground Ignition switch off Below 1 V
      Ignition switch ON 11 to 14 V

    OK

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

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR