Mitsubishi Eclipse 1990 Service Manual page 1713

Connector terminal arrangement
Terminal arrangement shown on the
special tool connector
I
When idling (5-6 km/h)
gear (manual transaxle) or
i range (automatic
. - i - - ~ - - - ; - - ; - - - c - - ? - - - c - - : - - - ; - - ~ - - -
Caution
1. Use the special tool
terminal
2. The
arrangement shown on the special tool
So take the readings from
the special tool when checking.
Example
0 0 0 0 0 0 7 6
If
reason
Faulty wheel
Inspecting Wave Forms With An Oscilloscope
Use the following method to observe the output voltage wave
form from each wheel sensor with an oscilloscope
L - L - -
Start the engine, and rotate the front wheels by engaging
,
gear (vehicles with manual transaxle) or
(vehicles with automatic transaxle). Turn the rear wheels
manually so that they rotate at a constant speed.
NOTE
1. Check the connection of the sensor harness and
connector before using the oscilloscope.
2. The wave form measurements can also be taken while
- I - - -
the vehicle is actually moving.
3. The output voltage will be low when the wheel speed
is low, and similarly it will be higher as the wheel speed
increases.
Revision
Service
and resistance.
connector
i s
Terminal
connector
number
18
output voltage is lower than the above values, the
be follows:
sensor.
,
,
to
t h e
the-special tool connector
1
,
range
for
,