1993 CHEVROLET PLYMOUTH ACCLAIM wiring

CHRYSLER
CORPORATION
WIRING DIAGRAMS
SERVICE MANUAL
1993 FRONT WHEEL DRIVE PASSENGER VEHICLES
To order the special service tools used and
illustrated, please refer to the instructions on
inside back cover.
NO PART OF THIS PUBLICATION MAY BE
REPRODUCED, STORED IN A RETRIEVAL
SYSTEM, OR TRANSMITTED, IN ANY FORM
OR BY ANY MEANS, ELECTRONIC, ME-
CHANICAL, PHOTOCOPYING, RECORDING,
OR OTHERWISE, WITHOUT THE PRIOR
WRITTEN PERMISSION OF CHRYSLER
CORPORATION.
Chrysler Corporation reserves the right to make changes in design or to make
additions to or improvements in its products without imposing any obligations
upon itself to install them on its products previously manufactured.
Litho in U.S.A. Copyright 1992 Chrysler Corporation 30M0792
NEXT PAGE ©

FOREWORD
The information contained in this Service Manual has been prepared for the professional automotive
technician involved in daily repair operations. Information describing the operation and use of standard and
optional equipment is included in the Owner's Manual provided with the vehicle.
These diagrams contain the latest information at the time of publication and incorporate the wiring schematic
for the basic vehicle and available optional equipment.
The diagrams are grouped by body type and sales division. The body codes are explained in the General
Information section. (ExampleÐAP-D, P=Shadow, Sundance). To locate a system or component refer to the black
index tabs on the next page. The tab will assist you in locating the desired area of the manual.
An alphabetical index is provided at the beginning of each section to help you in locating a system or
component. All diagrams are identified by SHEET NUMBER which is found in the lower right- or left-hand corner
of the page.
A Service Manual Comment form is included at the rear of this manual. Use the form to provide Chrysler
Corporation with your comments and suggestions.
Chrysler Corporation reserves the right to change testing procedures, specifications, diagnosis, repair
methods, or vehicle wiring at any time without prior notice or incurring obligation.
NOTE: The acronyms, terminology and nomenclature used to identify emissions related components in this
manual may have changed from prior publications. These new terms are in compliance with S.A.E.
recommended practice J1930. This terminology standard (J1930) is required to comply with the 1993
California Air Research Board (CARB) requirements.
FOR INFORMATION NOT CONTAINED IN THIS MANUAL, REFER TO THE FRONT WHEEL
DRIVE PASSENGER VEHICLES ENGINEÐCHASSISÐBODY OR ELECTRICALÐFUELÐEMISSIONS
SERVICE MANUALS.
NEXT PAGE ©

GROUP TAB LOCATOR
GENERAL INFORMATION
FUSE CHARTS AND RELAY BANKS
WIRING AND COMPONENT
IDENTIFICATION
SPLICE LOCATIONS
AA-C, D, P WIRING DIAGRAMS
AC-C, D/AY-C WIRING DIAGRAMS
AG-D, AJ-C WIRING DIAGRAMS
AP-P, D WIRING DIAGRAMS
Service Manual Comment Forms (Rear of Manual)

BLEEDING BENDIX ANTILOCK 4 BRAKE SYSTEM......5-3
BASE BRAKE SYSTEM BLEEDING PROCEDURE.........5-3
MASTER CYLINDER FLUID LEVEL................5-3
TESTING FOR FLUID CONTAMINATION.............5-4 WIRING DIAGRAMS AA-BODY
..................8W-1
INDEX...............................8W-1
WIRING DIAGRAMS AJ BODY ..................8W-8
ALPHABETICAL INDEX.....................8W-8

AUTOMATIC AIR LOAD LEVELING SYSTEM INDEX
page page
Compressor Performance Test .............. 61
Compressor Relay ........................ 72
Control Module .......................... 72
General Information ....................... 59
Major Components ....................... 59 Rear Leveling Diagnostic Procedures
......... 65
Right Shock Absorber (With Height Sensor) .... 72
Service Procedures ....................... 62
System Operation ........................ 61
GENERAL INFORMATION
The automatic air load leveling system includes
the following (Fig. 1).:
² Compressor Assembly
² Control Module Wiring Harness
² Air Lines
² Compressor Relay
² Air Shock Absorbers
² Air Dryer
This system is used to supplement standard sus-
pension systems on vehicles so equipped.
MAJOR COMPONENTS
COMPRESSOR ASSEMBLY
The compressor assembly is driven by an electric
motor and supplies air pressure between 1172 to
1516 kPa (170 to 220 psi) (Fig. 2). A solenoid oper-
ated exhaust valve, located in the compressor head
assembly, releases air when energized.
CONTROL MODULE
The Control Module (CM) is a device that controls
the ground circuits for the compressor relay and the
exhaust valve solenoid. A microprocessor within the
module limits the compressor pump operation time to
140 to 160 seconds. To prevent damage to the com-
pressor motor.
Fig. 1 Automatic Air Load Leveling System
Ä SUSPENSION AND DRIVESHAFTS 2 - 59

A compression ball sleeve nut and sleeve for 3/16
inch tubing with ball sleeve connector and an inter-
nal pipe T-fitting. Can be used to attach the tubing
to the pressure gauge. (3) Cycle ignition from OFF to ON.
(4) Apply a load to the rear of the vehicle (two as-
sistants or approximately 300-325 lbs.) to run com-
pressor and raise the vehicle. (5) Remove the load applied in Step 4. Allow the
system to exhaust and lower the vehicle. (6) When no more air can be exhausted, the gauge
should indicate 69 to 152 kPa (10 to 22 psi). (7) Remove the pressure gauge and nylon tubing.
Attach the air line between the dryer and shock ab-
sorber. Repeat Steps 3, 4, and 5 to ensure system air
pressure is in the shocks.
LEAK CHECKS
(1) Repeat Residual Air Check Steps 1, 2, 3, and 4.
Allow the system to fill until gauge reads 483 to 621
kPa (70 to 90 psi). If compressor is permitted to run until it reaches
its maximum output pressure, the vent solenoid
valve will function as a relief valve. The resulting
leak down, when compressor shuts off, will indicate a
false air leak. (2) With load still applied, disconnect wire harness
connector from the control module, then remove ap-
plied load. Vehicle should rise. Cycle ignition switch
to OFF. (3) Observe if pressure leaks down or holds steady
(wait approximately 15 minutes). (A) If system will not inflate beyond 345 kPa (50
psi). A severe leak may be indicated. Check for a
pinched pressure line between compressor and
shocks. (B) The standard soap solution check procedure is
acceptable. (C) If pressure holds steady, perform the diagnosis
procedures.
SYSTEM OPERATION
RAISING VEHICLE HEIGHT
When weight is added to the rear suspension. The
body of the vehicle is lowered, moving the height
sensor down. This action will activate the internal time delay
circuit. After a time delay of 12 to 18 seconds. The
control module (CM) activates the ground circuit to
the compressor relay. With the relay energized, the compressor motor
runs and air is sent through the system. As the
shock absorbers inflate, the body moves upward to a
corrected position. When the body reaches the correct
height, the control module (CM) stops the compressor
operation.
LOWERING VEHICLE HEIGHT
When the weight is removed from the vehicle. The
body moves upward, which allows the height sensor
to move upward and activate the internal time delay
circuit. After a time delay of 12 to 18 seconds. The (CM)
activates the exhaust solenoid circuit. Air is ex-
hausted from the shock absorbers through the air
dryer and exhaust solenoid to the atmosphere. As the body lowers, the height sensor is lowered to-
ward its original position. When the body reaches the
original vehicle height, the (CM) opens the exhaust
solenoid valve circuit.
COMPRESSOR PERFORMANCE TEST
This test can be performed on the vehicle. It is
used to evaluate compressor current draw, pressure
output, and leak down. (1) Disconnect the compressor motor wiring har-
ness connector. (2) Disconnect air line between dryer and right
shock absorber. (3) Connect an air pressure gauge into the system
(Fig. 5). (4) Connect an ammeter in series between the red
wire terminal on compressor connector and a 12 volt
power source. Also, connect a ground wire from the
black wire terminal on the compressor connector to a
good ground on the frame (Fig. 6). (5) If the current draw to the compressor motor ex-
ceeds 21 amperes, replace the compressor assembly. (6) When the air pressure stabilizes at 827 kPa
(120 psi), disconnect the (+) wire lead from the con-
nector. Replace the compressor assembly if any of the
following conditions exists:
Fig. 5 Pressure Gauge Installed in System
Ä SUSPENSION AND DRIVESHAFTS 2 - 61

AUTOMATIC AIR LOAD LEVELING SYSTEM WIRING SCHEMATIC
Ä SUSPENSION AND DRIVESHAFTS 2 - 63

AUTOMATIC AIR LOAD LEVELING SYSTEM WIRING SCHEMATIC
2 - 64 SUSPENSION AND DRIVESHAFTS Ä