ENGINE IMMOBILISER SYSTEM (w/o Smart Entry and Start System) Diagnosis Circuit

DESCRIPTION

This circuit is used to read the DTCs that are output from the transponder key ECU assembly with the intelligent tester.

WIRING DIAGRAM

B000NC2E07

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (DLC3 - TRANSPONDER KEY ECU AND BODY GROUND)


    1. Disconnect the DLC3 connector.

    2. Disconnect the transponder key ECU assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I19-9 (D) - I39-7 (SIL) Always Below 1 Ω
      I39-4 (CG) - Body ground Always Below 1 Ω
      I19-9 (D) - Body ground Always 10 kΩ or higher
      I39-7 (SIL) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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