Attention: when diagnosing the speed sensors, the brake system works as usual (ABS not working).
1. Make sure the battery voltage is (with the ignition off) corresponds to the nominal value.
- Rated voltage - 10-14 V
2. Check the ABS indicator.
A) Turn on the ignition.
b) Make sure the indicator lights up for three seconds. If not, repair or replace (if necessary) fuse, indicator lamp and wiring harness.
3. Read fault codes.
A) Switch off the ignition.
b) Short the terminals TWith and E1 diagnostic socket.
V) Turn on the ignition.
G) If the ABS system is normal, then the blinking of the indicator will correspond to those indicated in the figure.
ABS normal code
2WD Models (code "0")
4WD Models (code "1")
4. (Speed sensors (ABS))
Checking while driving.
A) Tighten the parking brake lever.
b) Accelerate the vehicle to a speed of more than 80 km/h for a few seconds. Make sure the indicator flashes according to the diagram in the figure.
5. Reading trouble codes.
A) Stop the car. The ABS indicator will flash.
b) Short terminals TWith and E1 diagnostic socket.
Note: remove the jumper between terminals TWith and E1 diagnostic socket.
V) Determine the fault code by the number of flashes of the ABS indicator (see table "Fault codes for speed sensors and deceleration sensor").
Note:
- - During normal operation, the indicator flashes at a frequency of 2 times per second.
- - If there are two or more faults, the fault with the lowest code will be displayed first.
6. (Deceleration sensor)
Check the height of the deceleration sensor.
A) Raise the rear of the car.
Attention: measure the height as shown in the picture.
b) Make sure the indicator is blinking. If the indicator is constantly on, then check the voltage between the output "IG" deceleration sensor connector and "earth".
- Rated voltage - 10-14 V
If the voltage is normal, then replace the deceleration sensor.
V) Lower the car.
G) Raise the front of the car. Then repeat the steps "b" And"V".
Attention: measure the height as shown in the picture.
7. (Deceleration sensor)
Check while driving.
A) Make sure the ABS indicator is flashing. If the indicator is constantly on, then check the voltage between the output "IG" deceleration sensor connector and "earth".
- Rated voltage - 10-14 V
If the voltage is normal, then replace the deceleration sensor.
b) At speeds over 20 km/h, lightly depress the brake pedal.
V) Check that there is no change in the blinking of the indicator, as shown in the figure.
G) At a speed of about 20 km/h, press the brake pedal harder.
d) Make sure that when you press the pedal, the indicator flashes as shown in the figure.
e) At speeds over 20 km/h, press the brake pedal all the way down.
and) Make sure the indicator is blinking.
If the description of the blinking indicator does not match, check the correct installation of the deceleration sensor. If the deceleration sensor has been installed correctly, then replace it.
8. Replace or repair faulty elements of the system.
Note: When repairing or replacing ABS parts, turn off the ignition.
9. Disconnect terminals TWith, Ts and E1 diagnostic socket.