Page 149 - Workshop Manual - Tunland (2017)

DIAGNOSTICS - ANTI-LOCK BRAKING SYSTEM (ABS) 04-11

Circuit Diagram

04

Diagnostic step

1 . Read DTC and data on the diagnostic apparatus
(a) Choose mode for reading dataflow in diagnostic apparatus.
(b) Check whether the speed showing on the speed meter on the instrument is consistent
to that of the diagnostic apparatus when the vehicle is running.
CAUTION
It is a normal scope if the difference of vehicle speed value of instrument and the
diagnostic apparatus is within ± 10%,.

Check whether the result is normal?
Yes > If the values are identical, go to step 5.

No > If the values are different, go to step 2.

2 . Check the front wheel speed sensor
(a) Ignition switch: Switch to OFF. Disconnect both the positive and negative poles of the
battery terminal and dismantle the battery.