LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2007 >> ES 350 >> Repair and Diagnosis >> Brakes >> Traction Control >> Brake Control >> Vehicle Stability Control System >> TC and CG Terminal Circuit >> Inspection Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Inspection Procedure

NOTE: When replacing the brake actuator assembly, perform zero point CALIBRATION  .
  1. CHECK CAN COMMUNICATION SYSTEM 
    1. Check if the CAN communication system DTC is output (See DIAGNOSIS SYSTEM ).

      Result 

      RESULT CHART

      Condition Proceed to
      DTC is not output A
      DTC is output B

    B: INSPECT CAN COMMUNICATION SYSTEM 

    A: Go to Next Step 

  2. INSPECT DLC3 
    1. Turn the engine switch on (IG).
    2. Measure the voltage according to the value(s) in the table below.

      Standard voltage 

      VOLTAGE SPECIFICATION

      Tester Connection Condition Specified Condition
      E21-13 (TC) - E21-4 (CG) Engine switch on (IG) 10 to 14 V
    Fig 1: Identifying TC And CG Terminals Of DLC3 Connector
    G05250463Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: Go to step  5

    NG: Go to Next Step 

  3. CHECK HARNESS AND CONNECTOR (TC of DLC3 - ECM) 
    1. Turn the engine switch off.
    2. Disconnect the ECM connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Condition
      E21-13 (TC) - A10-27 (TC) Always Below 1 Ω
      E21-13 (TC) - Body ground Always 10 kΩ or higher
    Fig 2: Identifying TC Terminal Of DLC3 And ECM Connector
    G05250464Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to Next Step 

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

      Standard resistance 

      RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Condition
      E21-4 (CG) - Body ground Always Below 1 Ω
    Fig 3: Identifying CG Terminal Of DLC3
    G05250465Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to Next Step 

  5. CHECK ECM (TC of DLC3 INPUT) 
    1. Turn the engine switch off.
    2. Reconnect the ECM connector.
    3. Using SST, connect terminals TC and CG of the DLC3.
    4. Turn the engine switch on (IG).
    5. Check that the check engine warning light is blinking.
      Fig 4: Identifying TC And CG Terminals Of DLC3 Connector
      G05250463Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Result 

      RESULT CHART

      Condition Proceed to
      Check engine warning light is blinking A
      Check engine warning light is not blinking B

      HINT:

      If troubleshooting has been carried out according to the Problem Symptoms Table, refer back to the table and proceed to the next step before replacing the part (See PROBLEM SYMPTOMS TABLE  ).

    B: REPAIR OR REPLACE WIRE HARNESS OR ECM (TC of ECM CIRCUIT) 

    A: REPLACE BRAKE ACTUATOR ASSEMBLY 

scientia non olet · About LEMON Manuals