VEHICLE STABILITY CONTROL SYSTEM TS and CG Terminal Circuit

DESCRIPTION

Connecting terminals TS and CG of the DLC3 causes the ECU to display Test Mode DTCs by blinking the ABS warning and slip indicator lights.

Tech Tips

TRC OFF message is displayed on the multi-information display during Test Mode because TRC is prohibited.

In Test Mode (signal check), a malfunction in a speed sensor that cannot be detected when the vehicle is stopped can be detected while driving.

Sensor check mode can be entered by connecting terminals TS and CG of the DLC3 and turning the engine switch from off to on (IG).

WIRING DIAGRAM

A01W19HE01
*a Skid Control ECU (Brake Actuator Assembly)
*b CAN Communication Line
*c Power Steering ECU Assembly

CAUTION / NOTICE / HINT

Note

When replacing the skid control ECU (brake actuator assembly), perform zero point calibration and store system information Click here.

PROCEDURE


  1. CHECK CAN COMMUNICATION SYSTEM


    1. Check if CAN communication system DTCs are output (See page for with Central Gateway ECU, Click here for without Central Gateway ECU).

      Result
      Result Proceed to
      DTCs are not output. A
      DTCs are output (w/ Central Gateway ECU). B
      DTCs are output (w/o Central Gateway ECU). C

    B

    INSPECT CAN COMMUNICATION SYSTEM Click here

    C

    INSPECT CAN COMMUNICATION SYSTEM Click here

    A

  2. INSPECT DLC3


    1. A01W3YME04
      Text in Illustration
      *a Front view of DLC3

      Turn the engine switch on (IG).

    2. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Condition Specified Condition
      H29-12 (TS) - H29-4 (CG) Engine switch on (IG) 11 to 14 V

    NG

    CHECK HARNESS AND CONNECTOR (TS of DLC3 - POWER STEERING ECU ASSEMBLY) Click here

    OK

  3. CHECK POWER STEERING ECU ASSEMBLY (TS of DLC3 INPUT)


    1. A01W3YME04
      Text in Illustration
      *a Front view of DLC3

      Turn the engine switch off.

    2. Using SST, connect terminals 12 (TS) and 4 (CG) of the DLC3.

      SST
      09843-18040

    3. Check that the EPS warning light is blinking.

      OK
      The EPS warning light is blinking.

      Tech Tips

      If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step before replacing parts Click here.


    OK

    REPLACE BRAKE ACTUATOR ASSEMBLY Click here

    NG

    REPAIR OR REPLACE WIRE HARNESS OR POWER STEERING ECU ASSEMBLY

  4. CHECK HARNESS AND CONNECTOR (TS of DLC3 - POWER STEERING ECU ASSEMBLY)


    1. Turn the engine switch off.

    2. Disconnect the c1 power steering ECU assembly connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      H29-12 (TS) - c1-6 (TS) Always Below 1 Ω
      H29-12 (TS) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. CHECK HARNESS AND CONNECTOR (CG of DLC3 - BODY GROUND)


    1. A01W4LSE04
      Text in Illustration
      *a Front view of DLC3

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      H29-4 (CG) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. CHECK POWER STEERING ECU ASSEMBLY (TS of DLC3 INPUT)


    1. A01W3YME04
      Text in Illustration
      *a Front view of DLC3

      Reconnect the c1 power steering ECU assembly connector.

    2. Using SST, connect terminals 12 (TS) and 4 (CG) of the DLC3.

      SST
      09843-18040

    3. Check that the EPS warning light is blinking.

      OK
      The EPS warning light is blinking.

      Tech Tips

      If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step before replacing parts Click here.


    OK

    REPLACE BRAKE ACTUATOR ASSEMBLY Click here

    NG

    REPAIR OR REPLACE WIRE HARNESS OR POWER STEERING ECU ASSEMBLY