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HOMESERVICE MANUALSLEXUS2005ES 330REPAIR AND DIAGNOSIS (SINGLE PAGE)RESTRAINTSAIR BAG, SRSSUPPLEMENTAL RESTRAINT SYSTEM - DIAGNOSTICSTC TERMINAL CIRCUITINSPECTION PROCEDURE
2005 Lexus ES 330

Inspection Procedure

2005 Lexus ES 330SECTION Inspection Procedure
  1. CHECK WIRE HARNESS (DLC3 - AIRBAG SENSOR ASSY CENTER) 
    1. Turn the ignition switch to the LOCK position.
    2. Disconnect the airbag sensor assy center connector.
    3. Measure the resistance according to the value (s) in the table below.

    Standard: 

    TESTER CONNECTION AND TERMINAL SPECIFIED CONDITION

    Tester connection Condition Specified condition
    D2-13 (TC) - A31-15 (TC) Always Below 1 Ω
    Fig 1: Identifying TC Terminal Of DLC3 - Airbag Sensor Assy Center Wire Harness Connector
    G02937286Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE WIRE HARNESS (TC of DLC3 - TC of AIRBAG SENSOR ASSY CENTER) 

    OK: Go To Next Step 

  2. CHECK WIRE HARNESS (CG of DLC3 - BODY GROUND) 
    1. Measure the resistance according to the value (s) in the table below.

    Standard: 

    TESTER CONNECTION AND TERMINAL SPECIFIED CONDITION

    Tester connection Condition Specified condition
    D2-4 (CG) - Body ground Always Below 1 Ω

    NG: REPAIR OR REPLACE WIRE HARNESS (CG of DLC3 - BODY GROUND) 

    Fig 2: Identifying CG Terminal Of DLC3 - Body Ground Wire Harness Connector
    G02937287Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: Go To Next Step 

  3. CHECK WIRE HARNESS (TC of AIRBAG SENSOR ASSY CENTER - BODY GROUND) 
    1. Measure the resistance according to the value (s) in the table below.

    Standard: 

    TESTER CONNECTION AND TERMINAL SPECIFIED CONDITION

    Tester connection Condition Specified condition
    A31-15 (TC) - Body ground Always 1 MΩ or Higher

    NG: REPAIR OR REPLACE WIRE HARNESS OR EACH ECU 

    Fig 3: Identifying TC Terminal Of Airbag Sensor Assy Center - Body Ground Wire Harness Connector
    G02937288Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: REPLACE AIR BAG SENSOR ASSY CENTER (SEE  REPLACEMENT  ) 

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.