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Inspection Procedure

NOTE: When replacing the master cylinder solenoid, perform zero point calibration (See CALIBRATION ).
  1. INSPECT DLC3 (DLC3 (TC) - DLC3 (CG)) 
    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 Switch Condition Specified Condition
    E22-13 (TC) - E22-4 (CG) Engine switch on (IG) 11 to 14 V

    NG:  Go to step  4

    Fig 1: Identifying DLC3 Connector Terminals
    G05629938Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: Go to next step 

  2. CHECK CAN COMMUNICATION LINE 
    1. Turn the engine switch off.
    2. Connect the Techstream to the DLC3.
    3. Turn the engine switch on (IG) and the Techstream on.
    4. Select "CAN Bus Check" from the System Selection Menu screen, and follow the prompts on the screen to inspect the CAN Bus.

    OK: "CAN Bus Check" indicates no malfunctions in CAN communication. 

    NG: GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING)  (See HOW TO PROCEED WITH TROUBLESHOOTING )

    OK: Go to next step 

  3. CHECK DTC (for CAN Communication System) 
    1. Turn the engine switch off.
    2. Connect the Techstream to the DLC3.
    3. Turn the engine switch on (IG) and the Techstream on.
    4. Check for DTCs (See HOW TO PROCEED WITH TROUBLESHOOTING ).

    Result 

    RESULT REFERENCE

    Result Proceed to
    CAN system DTC is not output. A
    CAN system DTC is output. B

    B: GO TO CAN COMMUNICATION SYSTEM (DIAGNOSTIC TROUBLE CODE CHART)  (See DIAGNOSTIC TROUBLE CODE CHART )

    A: Go to next step 

  4. CHECK HARNESS AND CONNECTOR (ECM - DLC3 (TC)) 
    1. Turn the engine switch off.
    2. Disconnect the A38 ECM connector.
    3. Measure the resistance according to the value(s) in the table below.

    Standard Resistance 

    RESISTANCE SPECIFICATION

    Tester Connection Condition Specified Condition
    A38-16 (TC) - E22-13 (TC) Always Below 1 Ω

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Fig 2: Identifying ECM And DLC3 Connector Terminals
    G05629939Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: Go to next step 

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

    Standard Resistance 

    RESISTANCE SPECIFICATION

    Tester Connection Condition Specified Condition
    E22-4 (CG) - Body ground Always Below 1 Ω

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Fig 3: Identifying DLC3 Connector Terminals
    G05629940Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: Go to next step 

  6. CHECK ECM (DLC3 (TC) INPUT) 
    1. Using SST, connect terminals TC and CG of the DLC3.
    2. Check that the malfunction indicator lamp is blinking.

    Result 

    RESULT REFERENCE

    Result Proceed to
    MIL is blinking. A
    MIL is not blinking. B

    B: REPAIR OR REPLACE WIRE HARNESS OR ECM 

    Fig 4: Identifying DLC3 Connector Terminals
    G05629941Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    A: Go to next step 

  7. CHECK DTC (for CAN Communication System) 
    1. Turn the engine switch off.
    2. Connect the Techstream to the DLC3.
    3. Turn the engine switch on (IG) and the Techstream on.
    4. Check for DTCs (See HOW TO PROCEED WITH TROUBLESHOOTING ).

    Result 

    RESULT REFERENCE

    Result Proceed to
    CAN system DTC is not output. A
    CAN system DTC is output. B

    B: GO TO CAN COMMUNICATION SYSTEM (DIAGNOSTIC TROUBLE CODE CHART)  (See DIAGNOSTIC TROUBLE CODE CHART )

    A: REPLACE MASTER CYLINDER SOLENOID  (See DISASSEMBLY )

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