- Nominal voltage - 10 - 14 V
2. Check the ABS and slip indicators.
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.
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3. Read the fault code.
(Using the ABS indicator)
a) Short-circuit the "ECUT" and "E" terminals of the diagnostic connector (see the "Diagnostics" figure).
b) Turn on the ignition.
c) If there is a malfunction, the indicator will start flashing after 4 seconds. Count the number of flashes.
Note:
- The fault code consists of two digits, the first digit is determined by the initial series of flashes, then after a pause of 1.5 seconds follows a second series of flashes, which corresponds to the second digit of the code.
- 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.
Location of the vehicle's handling improvement system components.
1 - pressure modulator,
2 - pressure sensor in the main brake cylinder,
3 - brake light switch,
4 - steering wheel position sensor,
5 - indicators (braking and handling systems),
6 - buzzer,
7 - traction control switch,
8 - vehicle control improvement systems relay,
9 - deceleration sensor,
10 - front wheel speed sensors,
11 - diagnostic connector,
12 - lateral displacement sensor,
13 - parking brake switch,
14 - electronic control unit for vehicle handling improvement systems,
15 - rear wheel speed sensors.
Diagnostics.
d) If there is no fault, the indicator will flash at 0.5 second intervals.
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d) Remove the jumper from the diagnostic connector terminals.
e) After troubleshooting, erase the codes stored in the memory of the electronic control unit.
Note: If the battery is disconnected, all fault codes stored in the ECU memory will be erased.
g) Turn on the ignition and make sure that the ABS indicator lights up for three seconds and goes out.
(Using a tester)
a) Turn off the ignition and connect the tester to the diagnostic connector.
b) Turn on the ignition and read the fault codes using the tester manual. Determine the fault using the table "ABS system fault codes".
Note: When troubleshooting, please refer to the relevant electrical diagrams.
[The full article is posted on the website: ToyotaMan.ru]
c) After troubleshooting, clear the codes.




