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Chapter 8 MK-20 ABS System
Section 1 ABS Diagnosis
I. Check the ABS Warning Light
1. Check the ABS Warning Light goes on as the following:
1 Turn the ignition switch to ON, the ABS Warning Light goes on for about 1.7 seconds and then goes off.
2 If the above condition is not satisfied, it indicates that there is a fault, please check the DTC.
3 If the warning light does not light up at all, refer to the Non-DTC fault inspection table.
II. The Reading of the information status
After connecting the scan meter, turn the ignition switch to¡°ON¡±, select the function menu item 01, press
OK to confirm, the screen will display the following information:
1. ECU drawing number and its version:
ABS MK20 IE
2. Code 01901
III. Read and Clear the DTC
1. After selecting the "02 Read DTC" in the function menu, it displays the total amount of the fault, if there
is no DTC, then it displays no DTC. Then, press OK button to proceed to next page to review the DTC
and its description. Generally, there is a P or O before the DTC, indicating that it is a Persistent fault or
Occasional fault. Persistent fault remains existing all the time, while the Occasional fault can be cleared
and is only able to reoccur during the driving.
Note:
The reading of the DTC can not be quitted middle way, you can return to the function menu only
after reading all the DTC.
Clear DTC
2. Select function menu item 05, press OK button to clear the DTC, if the DTC can not be cleared, it
indicates that the DTC represent exist all the time, if the saved DTC can be cleared, it indicates that it is
occasional fault can only be detected during the driving.
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