ANTI-LOCK BRAKE SYSTEM TEST MODE PROCEDURE

SENSOR CHECK USING TEST MODE (SIGNAL CHECK) (Using the Intelligent Tester)

1. Procedure to enter Test Mode.

   
   

   1. Turn the ignition switch off.

   2. Check that the steering wheel is in the straight-ahead position.

   3. Check that the parking brake is applied.

   4. Connect the intelligent tester to the DLC3.

   5. Turn the ignition switch to ON.

   6. Turn the intelligent tester on.

   7. Switch the skid control ECU to Test Mode using the intelligent tester. Enter the following menus: Chassis / ABS/VSC/TRC / Utility / Signal Check.

   8. 

      Check that the ABS warning light comes on for several seconds and then blinks in the Test Mode blinking pattern.

      If the ABS warning light does not blink, inspect the TS and CG terminal circuit and ABS warning light circuit.

      Trouble Area	See procedure
      TS and CG terminal circuit	Click here
      ABS warning light circuit (Remains on)	Click here
      ABS warning light circuit (Does not come on)	Click here

SPEED SENSOR CHECK (Using the Intelligent Tester)

1. 

   Drive the vehicle straight-ahead.

   Accelerate the vehicle to a speed of 45 km/h (28 mph) or more over several seconds and check that the ABS warning light goes off.

2. Stop the vehicle.

   Note:
   

   • The speed sensor check may not be completed if the speed sensor check is started while turning the steering wheel or spinning the wheels.

   • If the sensor check has not been completed, the ABS warning light will blink while driving and the ABS will not operate.

   Tip:

   When the sensor check has been completed, the ABS warning light goes off while driving and blinks in the Test Mode pattern while stationary.

END OF SENSOR CHECK (Using the Intelligent Tester)

1. 

   If the sensor check is completed, the ABS warning light blinks (Test Mode) when the vehicle stops and is off while the vehicle is being driven.

   Note:

   If the sensor check is not completed, the ABS warning light blinks even while the vehicle is being driven and the ABS does not operate.

READ DTC OF SENSOR CHECK FUNCTION (Using the Intelligent Tester)

1. Read the DTC(s) by following the intelligent tester screen.

   Note:
   

   • If only DTCs are displayed, repair the malfunctions and clear the DTCs.

   • If DTCs and Test Mode codes (DTCs of the sensor check function) are displayed, repair the malfunctions, clear the DTCs and perform the Test Mode inspection.

   Tip:

   Refer to the list of DTCs (Click here).

SENSOR CHECK USING TEST MODE (SIGNAL CHECK) (Using SST Check Wire)

1. Procedure to enter Test Mode.

   
   

   1. Turn the ignition switch off.

   2. Check that the steering wheel is in the straight-ahead position.

   3. Check that the parking brake is applied.

   4. 

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

      09843-18040

      Table 2. Text in Illustration

      *1	Front view of DLC3

   5. Turn the ignition switch to ON.

   6. 

      Check that the ABS warning light comes on for several seconds and then blinks in the Test Mode blinking pattern.

      If the ABS warning light does not blink, inspect the TS and CG terminal circuit, and ABS warning light circuit.

      Trouble Area	See procedure
      TS and CG terminal circuit	Click here
      ABS warning light circuit (Remains on)	Click here
      ABS warning light circuit (Does not come on)	Click here

SPEED SENSOR CHECK (Using SST Check Wire)

1. 

   Drive the vehicle straight-ahead.

   Accelerate the vehicle to a speed of 45 km/h (28 mph) or more over several seconds and check that the ABS warning light goes off.

2. Stop the vehicle.

   Note:
   

   • The speed sensor check may not be completed if the speed sensor check is started while turning the steering wheel or spinning the wheels.

   • If the sensor check has not been completed, the ABS warning light will blink while driving and the ABS system will not operate.

   Tip:

   When the sensor check has been completed, the ABS warning light goes off while driving and blinks in the Test Mode pattern while stationary.

END OF SENSOR CHECK (Using SST Check Wire)

1. 

   If the sensor check is completed, the ABS warning light blinks (Test Mode) when the vehicle stops and is off while the vehicle is driving.

   Note:

   If the sensor check is not completed, the ABS warning light blinks even while the vehicle is driving and the ABS does not operate.

READ DTC OF SENSOR CHECK FUNCTION (Using SST Check Wire)

1. 

   Using SST, connect terminals 13 (TC) and 4 (CG) of the DLC3.

   09843-18040

   Table 3. Text in Illustration

   *1	Front view of DLC3

2. 

   Count the number of blinks of the ABS warning light.

   Note:
   

   • If only DTCs are displayed, repair the malfunctions and clear the DTCs.

   • If DTCs and Test Mode codes (DTCs of sensor check function) are displayed, repair the malfunctions, clear the DTCs and perform the Test Mode inspection.

   Tip:
   

   • If more than 1 malfunction is detected at the same time, the lowest numbered code will be displayed first.

   • Refer to the list of DTCs (Click here).

3. After performing the check, disconnect SST from terminals 12 (TS) and 4 (CG), and 13 (TC) and 4 (CG) of the DLC3, and turn the ignition switch off.

4. Turn the ignition switch to ON to cancel the Test Mode.

   Tip:
   

   • If the ignition switch is not turned to ON after SST is removed from the DLC3, the previous Test Mode will continue.

   • If the ignition switch is turned to ON with terminals TS and CG connected, the previous Test Mode will continue.

DTC OF SENSOR CHECK FUNCTION