Chrysler 1997 Stratus Convertible RHD Service Manual page 175

JX
DIAGNOSIS AND TESTING (Continued)
Care must be taken to avoid overloading the CAB
circuits. In testing for open or short circuits, do
not ground or apply voltage to any of the cir-
cuits unless instructed to do so for a diagnostic
procedure. These circuits should only be tested
using a high impedance multi-meter or the DRB
tester as described in this section. Power should
never be removed or applied to any control module
with the ignition in the ON position. Before removing
or connecting battery cables, fuses, or connectors,
always turn the ignition to the OFF position.
CAUTION: Use only factory wiring harnesses. Do
not cut or splice wiring to the brake circuits. The
addition of after-market electrical equipment (car
phone, radar detector, citizen band radio, trailer
lighting, trailer brakes, ect.) on a vehicle equipped
with antilock brakes may affect the function of the
antilock brake system.
SERVICE PROCEDURES
BRAKE FLUID LEVEL INSPECTION
CAUTION: Use only Mopar brake fluid or an equiv-
alent from a tightly sealed container. Brake fluid
must conform to DOT 3 specifications. Do not use
petroleum-based fluid because seal damage in the
brake system will result.
For the specific procedure covering the inspection
of the brake fluid level and adding brake fluid to the
reservoir, refer to the Service Adjustments Section in
this group of the service manual.
ABS HYDRAULIC SYSTEM BLEEDING PROCEDURE
INFORMATION
The base brake system must be bled anytime air is
permitted to enter the hydraulic system, due to dis-
connection of brake lines, hoses or components. The
ABS system, particularly the HCU, should only be
bled when the HCU is replaced or removed from the
vehicle, or if there is reason to believe the HCU has
ingested air. Under most circumstances that would
require brake bleeding, only the base brake system
needs to be bled.
It is important to note that excessive air in the
brake system will cause a soft or spongy feeling
brake pedal.
During bleeding operations, be sure that the brake
fluid level remains close to the FULL level in the res-
ervoir. Check the fluid level periodically during the
bleeding procedure and add DOT 3 brake fluid as
required.
HOOD RELEASE
The Allied Signal ABX-4 Brake System must be
bled as two independent braking systems. The non
ABS portion of the brake system is to be bled the
same as any non ABS system. Refer to the Service
Adjustments section in this manual for the proper
bleeding procedure to be used. This brake system can
be either pressure bled or manually bled.
The ABS portion of brake system MUST be bled
separately. This bleeding procedure requires the use
of the DRB scan tool and the bleeding sequence pro-
cedure outlined below.
ABS BLEEDING PROCEDURE
When bleeding the ABS system, the following
bleeding sequence MUST be followed to insure com-
plete and adequate bleeding. The ABS system can be
bled using a Manual bleeding procedure or standard
Pressure Bleeding Equipment.
If the brake system is to be bled using pressure
bleeding equipment, refer to Bleeding Brake System
in the Service Adjustments section at the beginning
of this group for proper equipment usage and proce-
dures.
(1) Assemble and install all brake system compo-
nents on vehicle making sure all hydraulic fluid lines
are installed and properly torqued.
(2) Connect the DRB scan tool to the diagnostics
connector. The diagnostics connector is located under
the lower instrument panel next to the left kick
panel (Fig. 9).
Fig. 9 ABS System Diagnostic Connector Location
(3) Using the DRB scan tool, check to make sure
the CAB does not have any fault codes stored. If it
does, remove them using the DRB scan tool.
DIAGNOSTIC DRIVER'S KICK PANEL NECTOR SIDE CON-
BRAKES 5 - 73