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Home >> Toyota >> 2009 >> RAV4 Base, 2.5 F, AWD >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Engine Immobilizer >> ENGINE IMMOBILISER SYSTEM (w/Smart Key System) >> ID Code Box Power Source Circuit >> Inspection Procedure

Inspection Procedure

  1. INSPECT FUSE (ECU-B) 
    1. Remove the ECU-B2 fuse from the engine room No. 2 relay block.
    2. Measure the resistance of the fuse.

      Standard Resistance: 

      Below 1 Ω 

      NG: REPLACE FUSE 

      OK: Go to next step 

  2. CHECK HARNESS AND CONNECTOR (ID CODE BOX - BATTERY AND BODY GROUND) 
    1. Disconnect the E79 box connector.
    2. Measure the resistance and voltage of the wire harness side connector.

      Standard Resistance 

      RESISTANCE SPECIFIED CONDITIONS

      Tester Connection Condition Specified Condition
      E79-8 (GND) - Body ground Always Below 1 Ω

      Standard Voltage 

      VOLTAGE SPECIFIED CONDITION

      Tester Connection Condition Specified Condition
      E79-1 (+B) - Body ground Always 11 to 14 V

      NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

      Fig 1: Identifying E79 ID Box Connector Terminals
      G06004602Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE