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Home >> Toyota >> 2005 >> Avalon Touring >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Theft Deterrent System >> Ecu Power Source Circuit >> Inspection Procedure

Inspection Procedure

  1. INSPECT FUSE (ECU-B) 
    1. Remove the ECU-B fuse from the engine room R/B and J/B.
    2. Check the resistance.

      Standard: Below 1 Ω 

    1. NG: CHECK FOR SHORT IN ALL HARNESS AND COMPONENTS CONNECTED TO FAILURE FUSE 
    2. OK: Go to next step. 
  2. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSY (MULTIPLEX NETWORK BODY ECU) (POWER SOURCE) 
    1. Disconnect the ID J/B connector.
    2. Check the voltage between the wire harness side connector and the body ground.

      Standard: 

      TASTER - CONNECTORS SPECIFICATION

      Tester Connection Condition Specified Condition
      ID-10 - Body ground Always 10 to 14 V
      Fig 1: Disconnecting ID J/B Connector
      G02977381Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 
    2. OK: Go to next step. 
  3. CHECK WIRE HARNESS (INSTRUMENT PANEL J/B ASSY (MULTIPLEX NETWORK BODY ECU) - BODY GROUND) 
    1. Disconnect the IF and IM J/B connectors.
    2. Check the resistance between the wire harness side connector and the body ground.

      Standard: 

      TESTER - CONNECTORS SPECIFICATION

      Tester Connection Specified Condition
      IF-10 - Body ground Below 1 Ω
      IM-9 - Body ground Below 1 Ω
      Fig 2: Disconnecting IF & IM J/B Connectors
      G02977382Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 
    2. OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (SEE  PROBLEM SYMPTOMS TABLE  ) 
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