Subaru Legacy 2003 Service Manual page 2787

ABS
2. SENSOR GAP
1) Measure the distance "A" between ABS sensor
surface and sensor pole face.
A
2) Measure the distance "B" between surface
where the front axle housing meets the ABS sen-
sor, and the tone wheel.
NOTE:
Measure so that the gauge touches the tone wheel
teeth top.
B
(1) Axle housing
(2) Tone wheel
3) Find the gap between the ABS sensor pole face
and the surface of the tone wheel teeth by putting
the measured values in the formula below and cal-
culating.
ABS sensor clearance = B − − − − A
ABS sensor standard clearance:
0.44 — 0.94 mm (0.0173 — 0.0370 in)
NOTE:
If the clearance is outside specifications, adjust the
gap using spacer (Part No. 26755AA000).
REAR ABS SENSOR
ABS00161
( 1 )
( 2 )
ABS00145
ABS-18
3. OUTPUT VOLTAGE
Output voltage can be checked by the following
method. Install resistor and condenser, then rotate
wheel about 2.75 km/h (2 MPH) or equivalent.
NOTE:
Regarding terminal No., refer to item 1. ABS SEN-
SOR.
+60 mV
0
–60 mV
10 Hz
( 1 )
( 2 )
( 2 )
(1) Standard output voltage:
Approx. 120 mV (When it is 10 Hz)
(2) To terminal
(3) Oscilloscope
D: ADJUSTMENT
Adjust the gap using
26755AA000).
( 3 )
3.9 k 14.7 k
10 nF
100 k
ABS00162
spacer (Part No.