Chrysler Stratus RHD 1999 Electronic Service Manual page 118

JA
DIAGNOSIS AND TESTING (Continued)
PROPORTIONING VALVE
NOTE: The following procedure is for the diagnosis
and testing of the proportioning valve(s) on a vehi-
cle without ABS. For diagnosis and testing of pro-
portioning valves on a vehicle equipped with ABS,
Refer to the ANTILOCK BRAKE SYSTEM section in
this group.
If a condition of premature rear wheel skid occurs
on a vehicle, the proportioning valve should always
be tested prior to it being replaced. This is due to the
fact that there are conditions other then a faulty pro-
portioning valve which can cause a premature rear
wheel skid.
One proportioning valve controls the right rear
brake, and the other proportioning valve controls the
left rear brake (Fig. 18). Therefore, a road test to
determine which rear brake slides first is essential.
Once the wheel which slides first is determined, use
the following procedure to diagnose the proportioning
valve.
The test procedure for a premature rear wheel skid
is the same for both rear wheel proportioning valves.
After road testing vehicle to determine which wheel
skids first, the proper test fittings required will have
VEHICLE ROAD TEST
Fig. 18 Non-ABS Brake Proportioning Valve
to be determined. Then follow the procedure below
for testing the required proportioning valve.
(1) Road test the vehicle. Determine which rear
wheel exhibits premature rear wheel skid, then refer
to the figure (Fig. 18) to determine which proportion-
ing valve needs to be tested.
BRAKES
Location
5 - 13