VDC/TCS/ABS

CONSULT-III Function (ABS)

APPLICATION ITEM
ABS

BASIC OPERATION PROCEDURE

WORK SUPPORT

Operation Procedure
In case of doing work that applies to the list below, make sure to adjust neutral position of steering angle sensor before running vehicle.

1. Stop vehicle with front wheels in straight-ahead position.
2. Turn ignition switch ON and touch the CONSULT-III screen in the order of "ABS", "WORK SUPPORT" and "ST ANG SEN ADJUSTMENT".
3. Touch "START".

CAUTION:
Do not touch steering wheel while adjusting steering angle sensor.

4. After approximately 10 seconds, touch "END". (After approximately 60 seconds, it ends automatically.)
5. Turn ignition switch OFF, then turn it ON again.

CAUTION:
Be sure to perform above operation.

6. Run vehicle with front wheels in straight-ahead position, then stop.
7. Select "DATA MONITOR", "ECU INPUT SIGNALS", and "STR ANGLE SIG" on CONSULT-III screen.

6. Then make sure "STR ANGLE SIG" is within 0±2.5°. If value is more than specification, repeat steps 1 to

8. Erase memory of ABS actuator and electric unit (control unit) and ECM. ABS actuator and electric unit (control unit): Refer to "CONSULT-III Function (ABS). ECM: Refer to See: Powertrain Management\Computers and Control Systems\Testing and Inspection\Scan Tool Testing and Procedures\On Board Diagnostic (OBD) System\CONSULT-III Function.
9. Turn ignition switch OFF.

SELF-DIAGNOSIS RESULTS

Operation Procedure

1. Start engine and drive vehicle at 30 km/h (19 MPH) or more for approximately 1 minute.
2. After stopping vehicle, with the engine running, touch "ABS", "SELF-DIAG RESULTS" in order on the CONSULT-III screen.
3. The self-diagnostic results are displayed.

• Check ABS warning lamp, VDC OFF indicator lamp and SLIP indicator lamp if "NO FAILURE" is displayed. Refer to See: Symptom Related Diagnostic Procedures\VDC/TCS/ABS\Symptom Table.

4. Perform the appropriate Inspection from display item list, and repair or replace the malfunctioning component.Refer to "Display Item List".
5. Start engine and drive vehicle at 30 km/h (19 MPH) or more for approximately 1 minute.

CAUTION:
When the wheel sensor malfunctions, after inspecting the wheel sensor system, the ABS warning lamp, VDC OFF indicator lamp, SLIP indicator lamp and brake warning lamp will not turn off even when the system is normal unless the vehicle is driving at approximately 30 km/h (19 MPH) or more for approximately 1 minute.

Erase Memory

1. Turn ignition switch OFF.
2. Start engine and touch "ABS", "SELF-DIAG RESULTS", "ERASE MEMORY" in order on the CONSULT-III screen to erase the diagnostic memory. If "ABS" is not indicated, go to See: Testing and Inspection\Scan Tool Testing and Procedures\Description.

CAUTION:
If the diagnostic memory is not erased, re-perform the operation procedure starting with step 1.

3. Perform self-diagnosis again, and make sure that diagnostic memory is erased.
4. Drive vehicle at 30 km/h (19 MPH) or more for approximately 1 minute as the final Inspection, and make sure that the ABS warning lamp, VDC OFF indicator lamp, SLIP indicator lamp and brake warning lamp turn off.

NOTE:

• Brake warning lamp will turn on in case of parking brake operation (when switch is ON) or of brake fluid level switch operation (when brake fluid is insufficient).
• VDC OFF switch should not stay "ON" position.

Display Item List

  

  

  

DATA MONITOR

Display Item List

CAUTION:
The display shows the control unit calculation data, so a normal value might be displayed even in the event the output circuit (harness) is open or short - circuited.

  

  

  

ACTIVE TEST

CAUTION:

• Do not perform active test while driving vehicle.
• Make sure to completely bleed air from brake system.
• The active test cannot be performed with the ABS warning lamp, VDC indicator lamp, SLIP indicator lamp and brake warning lamp are on.
• ABS warning lamp, VDC OFF indicator lamp, SLIP indicator lamp and brake warning lamp are on during active test.

NOTE:

• When active test is performed while depressing the pedal, the pedal depression amount will change. This is normal. (Only solenoid valve and ABS motor)
• "TEST IS STOPPED" is displayed 10 seconds after operation start.
• After "TEST IS STOPPED" is displayed, to perform test again, touch "BACK" and repeat step 3.

Solenoid Valve

NOTE:
The example shown is for front right wheel. The procedure for the other wheels is the same as given below.

• When performing an active test of the ABS function, select the "MAIN SIGNALS" for each test item.In addition, when performing an active test of the VDC/TCS function, select the item menu for each test item.
• For ABS solenoid valve, touch "UP", "KEEP", and "DOWN" on the display screen. For ABS solenoid valve (ACT), touch "UP", "ACT UP", "ACT KEEP" and confirm that solenoid valves (IN, OUT, USV, HSV) operate as shown in the table below.

  

ABS Motor
Touch "ON" and "OFF" on screen. Make sure motor relay and actuator relay operates as shown in table below.