Chrysler Concorde 2004 Service Manual page 1502

5 - 36 BRAKES - BASE BRAKE SYSTEM
BRAKE JUNCTION BLOCK (Continued)
Later production junction blocks have the propor-
tioning valves for the rear brakes mounted in them.
One valve is mounted in each end (Fig. 58). The pro-
portioning valves are not serviced separately from
the junction block. Vehicles with this type junction
block no longer have proportioning valves mounted at
the rear brake flex hoses.
Fig. 58 Junction Block With Proportioning Valves
1 - JUNCTION BLOCK
2 - PROPORTIONING VALVE (LEFT REAR)
3 - BRACKET
4 - PROPORTIONING VALVE (RIGHT REAR)
OPERATION
The junction block distributes the brake fluid com-
ing from the master cylinder primary and secondary
ports to the four brake tubes leading to the brakes.
Since the junction block mounts in the same location
as the ABS integrated control unit (ICU), it allows
for the common use of brake tubes on the vehicle
whether it is equipped with or without ABS.
Later applications of the junction block include two
proportioning valves. Placed in the fluid flow pas-
sages leading to the rear brake tube ports, they bal-
ance front-to-rear braking. (Refer to 5 - BRAKES -
BASE/HYDRAULIC/MECHANICAL/PROPORTION-
ING VALVE - OPERATION)
REMOVAL
(1) Disconnect and isolate the negative battery
connection at the right front strut tower.
(2) Using a brake pedal holding tool such as shown
(Fig. 59), depress brake pedal past its first 1 inch of
travel and secure in this position. This will isolate
the master cylinder reservoir from the brake hydrau-
lic system, not allowing the brake fluid to drain out
of the reservoir.
Fig. 59 Brake Pedal Holding Tool Installed
1 - CLUTCH PEDAL (IF EQUIPPED WITH MANUAL TRANSAXLE)
2 - THROTTLE PEDAL
3 - BRAKE PEDAL HOLDING TOOL
4 - STEERING WHEEL
5 - DRIVER'S SEAT
6 - BRAKE PEDAL
(3) Remove screw fastening the speed control servo
to the upper radiator closure panel (Fig. 60).
(4) Remove screw fastening the washer filler tube
to the upper radiator closure panel (Fig. 60).
Fig. 60 Servo And Filler Tube Fasteners
1 - SPEED CONTROL SERVO
2 - WINDSHIED WASHER FILLER TUBE
3 - SCREW
4 - SCREW
LH