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

DESCRIPTION

This circuit provides power to operate the transponder key ECU assembly.

WIRING DIAGRAM

A01DPD9E06

INSPECTION PROCEDURE

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. A01DRXBE04
      Text in Illustration
      *A for 5L-E
      *B except 5L-E
      *a

      Front view of wire harness connector

      (to Transponder Key ECU Assembly)

      Disconnect the G138*1 or G74*2 ECU connector.


      • *1: for 5L-E

      • *2: except 5L-E

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

      Standard Voltage
      for 5L-E
      Tester Connection Switch Condition Specified Condition
      G138-1 (+B) - Body ground Always 11 to 14 V
      G138-2 (IG) - Body ground Ignition switch off Below 1 V
      Ignition switch ON 11 to 14 V
      except 5L-E
      Tester Connection Switch Condition Specified Condition
      G74-1 (+B) - Body ground Always 11 to 14 V
      G74-2 (IG) - Body ground Ignition switch off Below 1 V
      Ignition switch ON 11 to 14 V

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

      Standard Resistance
      for 5L-E
      Tester Connection Condition Specified Condition
      G138-16 (GND) - Body ground Always Below 1 Ω
      except 5L-E
      Tester Connection Condition Specified Condition
      G74-16 (GND) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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