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Home >> Scion >> 2004 >> xA Standard >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti-Lock Brake System - Diagnostics >> TC Terminal Circuit >> Inspection Procedure

Inspection Procedure

  1. INSPECT DLC3 TERMINAL VOLTAGE (Tc TERMINAL) 
    Fig 1: Inspecting DLC3 Terminal Voltage (Tc Terminal)
    G03367309Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Turn the ignition switch to the ON position.
    2. Measure the voltage according to the value (s) in the table below.

      Standard: 

      SPECIFIED CONDITION

      Tester Connection Specified Condition
      Tc (D1-13) - CG (D1-4) 11 to 14 V
    1. NG: Go to step   3 . 
    2. OK: Go to next step. 
  2. CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - DLC3) 
    Fig 2: Checking Harness & Connector (Skid Control ECU - DLC3)
    G03367310Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the skid control ECU connector.
    2. Measure the resistance according to the value (s) in the table below.

      Standard: 

      SPECIFIED CONDITION

      Tester Connection Specified Condition
      Tc (S1-16) - Tc (D1-13) 1 Ω or less
    3. Measure the resistance according to the value (s) in the table below.

      Standard: 

      SPECIFIED CONDITION

      Tester Connection Specified Condition
      Tc (S1-16) - Body ground 10 kΩ or higher
    1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 
    2. OK: REPLACE BRAKE ACTUATOR ASSY (See  REPLACEMENT  ) 
  3. CHECK HARNESS AND CONNECTOR (DLC3 - BODY GROUND) 
    Fig 3: Checking Harness & Connector (DLC3 - Body Ground)
    G03367311Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the skid control ECU connector.
    2. Measure the resistance according to the value (s) in the table below.

      Standard: 

      SPECIFIED CONDITION

      Tester Connection Specified Condition
      CG (D1-4) - Body ground 10 kΩ or higher
    1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 
    2. OK: Go to next step. 
  4. CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - DLC3) 
    Fig 4: Checking Harness & Connector (Skid Control ECU - DLC3)
    G03367312Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the skid control ECU connector.
    2. Measure the resistance according to the value (s) in the table below.

      Standard: 

      SPECIFIED CONDITION

      Tester Connection Specified Condition
      Tc (S1-16) - Tc (D1-13) 1 Ω or less
    3. Measure the resistance according to the value (s) in the table below.

      Standard: 

      SPECIFIED CONDITION

      Tester Connection Specified Condition
      Tc (S1-16) - Body Ground 10 kΩ Or Higher
    1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 
    2. OK: REPLACE BRAKE ACTUATOR ASSY (See  REPLACEMENT  ) 
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