Note: When diagnosing speed sensors, the brake system operates as normal (ABS does not work).
1. Make sure the battery voltage is (with ignition off) corresponds to the nominal value.
- Nominal voltage - 10-14 V
2. Check the ABS indicator.
a) Turn on the ignition.
b) Make sure the indicator lights for three seconds. If the indicator does not light, check the fuse, indicator bulb and wiring harness.
3. Turn off the ignition.
4. Short-circuit the "ECUT" - "E" terminals of the diagnostic connector.
The original article is on the portal toyotaman.ru
5. Turn on the ignition.
Note: Make sure that the system is in test mode (3 seconds after turning on the ignition, the ABS indicator should flash at 1 second intervals).
6. Checking while the vehicle is moving,
a) Start the engine.
b) Drive a car at a speed of more than 7 km/h.
Note: When changing speed, do not allow the wheels to slip.
7. Read the fault codes.
a) Stop the car. The ABS indicator will flash.
b) Determine the fault code by the number of flashes of the ABS indicator (see the table "Fault codes for the speed sensors and deceleration sensor").
Note:
- During normal operation, the indicator flashes 2 times per second.
- If there are two or more fault codes, the lowest code will be displayed first, followed by the remaining codes in ascending order. There will be a 2.5 second pause between codes.
c) Turn off the ignition and remove the jumper from the terminals of the diagnostic connector.
Table. Speed and deceleration sensor fault codes, up to 2000.
* 4WD models.
Table. Error codes for speed and deceleration sensors (continuation), since 2000.
* 4WD models.