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Home >> Toyota >> 2011 >> Corolla S, Automatic >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Supplemental Restraint System (Diagnostic Codes (B1000 - B1908) & Symptom Tests) >> Airbag System >> Circuit Tests >> TC and CG Terminal Circuit >> Procedure

TC and CG Terminal Circuit: Procedure

  1. CHECK WIRE HARNESS (TC OF DLC3 - TC OF ECM) 
    1. Turn the ignition switch off.
      Fig 1: Identifying E11 DLC3 & A55 ECM Connector Terminals
      GTY290694Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect the connector from the ECM.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      for 2ZR-FE 

      for 2AZ-FE 

      Tester Connection Condition Specified Condition
      E11-13 (TC) - A50-41 (TC) Always Below 1 Ω
      Tester Connection Condition Specified Condition
      E11-13 (TC) - A50-27 (TC) Always Below 1 Ω

    NG → REPLACE WIRE HARNESS 

    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.
      Fig 2: Identifying Connector Terminal CG Of DLC3
      GTY167572Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

      Tester Connection Condition Specified Condition
      E11-4 (CG) - Body ground Always Below 1 Ω

    NG → REPLACE WIRE HARNESS 

    OK: Go to next step 

  3. CHECK WIRE HARNESS (TC OF DLC3 - BODY GROUND) 
    1. Measure the resistance according to the value(s) in the table below.
      Fig 3: Identifying Connector Terminal TC Of DLC3
      GTY167447Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

      Tester Connection Condition Specified Condition
      E11-13 (TC) - Body ground Always 1 MΩ or higher

    NG → REPLACE WIRE HARNESS OR EACH ECU 

    OK → See step   4 

  4. REPLACE CENTER AIRBAG SENSOR ASSEMBLY. Refer to  REMOVAL 
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