Dodge RAM TRUCK 1500 1995 Service Manual page 216

5 - 4 4 ALL-WHEEL ANTILOCK BRAKE SYSTEM (ABS) — — — B i t
SENSOR
BOLTS (2)
STEERING
K N U C K L E
SPLASH
SHIELD
FRONT
SENSOR J9505-118
fig. 18 Front Speed Sensor Mounting (2-Wheel
Drive Shown)
(2) Install and tighten sensor bolts to 21-25 N-m
(190-250 in. lbs.) torque. Use original or replace­
ment sensor bolts only. The bolts are special
and must not be substituted.
(3) Connect sensor wire to harness wire from ABS
controller.
(4) Install rotor and brake caliper.
(5) Install wheel and tire assembly.
(6) Lower vehicle.
(7) Verify sensor operation with scan tool.
FRONT TONE WHEEL SERVICE
The tone wheel for the front speed sensor is located
in the rotor hub on 2-wheel drive models. On 4-wheel
drive models, the tone wheel is located on the drive-
shaft.
The tone wheel is not a serviceable component. On
2-wheel drive models, the complete rotor and hub as­
sembly will have to be replaced if the tone wheel be­
comes damaged. On 4-wheel drive models, the
driveshaft is necessary if the tone wheel becomes
damaged.
REAR SPEED SENSOR REMOVAL/INSTALLATION
(1) Raise vehicle on hoist.
(2) Clean sensor, cover and sensor mounting area
of axle housing (Figs. 19 and 20). This is necessary to
prevent dirt entry when sensor is removed from
housing. Mopar brake cleaner or carb cleaner are
equally acceptable for cleaning purposes.
(3) Disconnect harness wires from sensor.
(4) Remove screw that secures brake cable, brake-
line, sensor cover and sensor in axle housing (Figs.
19 and 20).
(5) Remove sensor and cover.
(6) Cover sensor opening in axle housing to pre­
vent dirt entry.
RETAINING
SCREW
J9405-80
Fig. 19 Rear Speed Sensor Mounting
REAR SPEED SENSOR INSTALLATION
(1) Insert sensor in axle housing opening.
(2) Position cover over sensor and install cover and
sensor attaching screw.
(3) Connect harness wires to sensor.
(4) Lower vehicle.
REAR SPEED SENSOR HARNESS REPLACEMENT
(1) Raise vehicle on hoist.
(2) Disconnect wire harness at sensor. Then disen­
gage
small harness clip from sensor cover (Fig. 21).
(3) Disconnect sensor harness at axle connector.
(4) Unclip sensor harness from plastic retainer
that secures harness and rear brake hose (Fig. 22).
(5) Remove rear harness from vehicle.
(6) Install and connect new rear harness. Verify
that harness is securely clipped to retainers.
(7) Lower vehicle.
ABS SYSTEM BRAKE BLEEDING
Use Mopar DOT 3 brake fluid, or equivalent meet­
ing SAE J1703-F and DOT 3 standards, to fill and
bleed the system.
Bleeding can be performed manually, with vacuum
equipment, or with pressure equipment. Manual
bleeding is preferred. If vacuum or pressure equip-