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

Inspection Procedure

  1. PERFORM ACTIVE TEST BY HAND-HELD TESTER 
    1. Connect the hand-held tester (with CAN VIM) to the DLC3.
    2. Turn the ignition switch on (IG) and press the hand-held tester main switch on.
    3. Select the item below in the ACTIVE TEST and then check that the indicator operates.

      BODY (Multiplex network body ECU): 

      BODY (MULTIPLEX NETWORK BODY ECU) SPECIFICATION

      Item Test Details Diagnostic Note
      SECURITY INDIC Security indicator ON/OFF -

      OK: The security indicator light flashes or goes off correctly when operating it through the hand-held tester. 

    1. NG: Go to step 2 
    2. OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (SEE  PROBLEM SYMPTOMS TABLE  ) 
  2. INSPECT COMBINATION METER ASSY 
    1. Remove the E2 combination meter assy.
    2. Apply 12 V positive voltage between the terminals of the indicator, and check the lighting condition of the security indicator.

      OK: 

      MEASUREMENT CONDITION - SPECIFIED CONDITION SPECIFICATION

      Measurement Condition Specified Condition
      Battery positive (+) --> Terminal 18 and 2 Battery negative (-) --> Terminal 10 Illuminates
      Fig 1: Removing E2 Combination Meter Assy
      G02977377Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:
      • If the positive (+) lead and the negative (-) lead are incorrectly connected, the security indicator does not illuminate.
      • Voltage of more than 12 V will damage the security indicator.
      • If the voltage is too low, the security indicator will not illuminate.
    1. NG: REPLACE COMBINATION METER ASSY (SEE  OVERHAUL  ) 
    2. OK: Go to next step. 
  3. CHECK WIRE HARNESS (POWER SOURCE) 
    1. Remove the E2 combination meter assy.
    2. Check the voltage between wire harness side connector and body ground.
      TESTER CONNECTION - CONDITION SPECIFICATION

      Tester Connection Condition Specified Condition
      E2-2 - Body ground Always 10 to 14 V
      Fig 2: Removing E2 Combination Meter Assy
      G02977378Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE) 
    2. OK: Go to next step. 
  4. CHECK WIRE HARNESS (COMBINATION METER ASSY - MULTIPLEX NETWORK BODY ECU AND BODY GROUND) 
    1. Disconnect the D7 ECU connector.
    2. Disconnect the E2 meter connector.
    3. Measure the resistance of the wire harness side connectors.

      Standard: 

      RESISTANCE - CONNECTORS SPECIFICATION

      Symbol (Tester Connection) Specified Condition
      (E2-18) - IND (D7-24) Below 1 Ω
      (E2-18) - Body ground 10 kΩ or higher
      (E2-10) - Body ground Below 1 Ω
      Fig 3: Disconnecting E2 Meter Connector
      G02977379Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 
    2. OK: REPLACE MULTIPLEX NETWORK BODY ECU 
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