Mitsubishi MOTORS Space Runner 1998, Workshop Manual

Page: 706 / 1164

ABS <2WD> -
On-vehicle Service
35B-18
Points In Waveform Measurement
Symptom Probable causes Remedy
Too small or zero waveform
amplitude
Faulty wheel speed sensor Replace sensor
Waveform amplitude fluctuates
excessively (this is no problem if
the minimum amplitude is 100 mV
or more)
Axle hub eccentric or with large runout Replace hub
Noisy or disturbed waveform Open circuit in sensor Replace sensor
Open circuit in harness Correct harness
Incorrectly mounted wheel speed sensor Mount correctly
Rotor with missing or damaged teeth Replace rotor
Caution
Because the wheel speed sensor cables move together with the front and rear suspension, they
vibrate greatly when driving over poor road surfaces. As a result, the sensor harnesses should also
be shaken when monitoring of output waveforms of the wheel speed sensors in order to simulate
conditions such as driving over poor road surfaces.
ABS WARNING LAMP RELAY CONTINUITY
CHECK
35200930047
Battery voltage Terminal No.
1 2 3 5
Power is not sup-
plied
Power is supplied
<R.H. drive vehicles>
<L.H. drive vehicles>