ECU diagnosis information
Interior room lampExcessive ABS function operation frequency
Diagnosis Procedure
1.CHECK START
Check front and rear brake force distribution using a brake tester.
2.CHECK FRONT AND REAR AXLE
Make sure that there is no excessive play in the front and rear axles.
3.CHECK WHEEL SENSOR AND SENSOR ROTOR
Check the following:
Wheel sensor installation for ...
Automatic drive positioner control unit
Reference Value
TERMINAL LAYOUT
PHYSICAL VALUES
...
ECU diagnosis information
ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
Reference Value
VALUES ON THE DIAGNOSIS TOOL
CAUTION:
The display shows the control unit calculation data, so a normal value might be
displayed even in the
event the output circuit (harness) is open or short-circuited.
Note 1: C ...