suspension FORD MUSTANG 2003 Workshop Manual

z
Check that the vehicle is on level ground.
z If the vehicle is equipped with air suspension, make sure that the switch is on.
2. NOTE: The vertical wall or screen must be a minimum of 2.4 meters (8 feet) wide.
Park the vehicle on a level surface approximately 7.6 meters (25 feet) from the vertical wall or
screen directly in front of it.
3. NOTE: The center of the lamp is marked by a 3 mm (0.12 in) circle on the headlamp lens.
Mark a horizontal reference line on the vertical wall or screen. 1. Measure the center of the headlamp height to ground and record.
2. Make a 2.4 meter (8 foot) horizontal mark (masking tape) on the vertical wall or screen at the same distance from the ground as previously recorded.
4. NOTE: This procedure should be done in a dark environment to effectively see the headlamp
beam pattern.
Turn on the low beam headlamps to illuminate the wall or screen and open the hood.
5. NOTE: For SAE type headlamps, the appearance of the beam pattern may vary between
vehicles.
On the wall or screen, locate the high intensity area of the beam pattern. Place the top edge of
the high intensity zone even with the horizontal reference line.
VOR type headlamps 6. NOTE: The appearance of the VOR beam pattern may vary between vehicles.
Identify at the top edge of this high intensity area a distinct horizontal cutoff in the beam pattern.
If the top edge of this cutoff is not even with the horizontal reference line, the headlamp beam will need to be adjusted. Klj . 2 ba
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DESCRIPTION AND OPERATION
Frame Assembly
Underbody misalignment can affect front and rear wheel alignment, the operation of the suspension
parts and drivetrain operation. Window glass cracks, door and window opening concerns, and air or
water leaks at the doors are often caused by improperly tightened bolts and body misalignment.
Every structural member and outer panel is designed to offer the maximum protection in the event of a
collision.
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REMOVAL AND INSTALLATION
Rear Subframe
Removal and Installation
CAUTION: Suspension fasteners are critical parts because they affect performance of vital
components and systems and their failure can result in major service expense. A new part with
the same part number must be installed if installation becomes necessary. Torque values must
be used as specified during reassembly.
1. Remove the rear coil springs. For additional information, refer to Section 204 - 02 .
2. Using the special tool, raise the rear subframe.
3. Remove and discard the rear subframe front bolts.
4. Using the special tool, lower and remove the rear subframe.
5. NOTE: Discard the old bolts and nuts. Do not reuse, install new bolts and nuts.
To install, reverse the removal procedure.
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GENERAL INFORMATION

INTRODUCTION

In the past, when cars were simpler, diagrams were simpler. All components were connected by wires, and
diagrams seldom exceeded 4 pages in length. Today, some wiring diagrams require more than 16 pages. It
would be impractical to expect a service technician to trace a wire from page 1 across every page to page 16.
Components shown with a dashed line instead of a solid line indicate not all circuits are shown in this
particular diagram (circuits shown in system diagrams are typically applicable to that system only). The
remaining circuits connected to that component will be shown in the appropriate system that they apply to.
Today, the wiring diagram necessary to support a given repair procedure is included within that article or a
link is provided to the appropriate SYSTEM WIRING DIAGRAM article. For example, the wiring diagram
for a Ford EEC-IV system may be included in ENGINE PERFORMANCE and WIRING DIAGRAMS
articles for Ford Motor Co. The wiring diagram for a cruise control system may be included in
ACCESSORIES & EQUIPMENT section for the specific vehicle manufacturer, and the wiring diagram for
an anti-lock brake system may be included in BRAKES and WIRING DIAGRAMS for the specific
manufacturer.
WIRING DIAGRAMS cont ains all wiring diagrams not in cluded in STARTING & CHARGING
SYSTEMS and ACCESSORIES & EQUIPMENT. Th is includes: Data Link Connectors, Ground
Distribution, Power Distribution, Engine Performance, Electri c Cooling Fans, Anti-Lock Brakes, Electronic
Suspension and Electronic Steering wiring diagrams. The Data Link Conne ctors wiring diagrams show the
circuits by which the various on-board computers exchange information, and the diagnostic connectors used
for diagnosis and their location. The Ground Distribution wi ring diagrams show all vehicle ground points,
their location, and the components co mmon to those ground points. The Po wer Distribution wiring diagrams
show the power feed circuits and the components common to those power feeds.
Wiring diagrams used to support the information in ACCESSORIES & EQUIPMEN T are drawn in a "top-
down" format. The diagrams are drawn with the power source at the top of the diagram and the ground point
at the bottom of the diagram. Component locations are identified on the wiring diagrams. Any wires that do
not connect directly to a component are identifi ed on the diagram to indicate where they go.


WIRING DIAGRAM COLOR ABBREVIATIONS
COLOR ABBREVIATIONS
ColorNormalOptional

GENERAL INFORMATI


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Camshaft Position (CMP) SensorEngine Performance
Central Control ModuleAnti-Theft System
ClockspringAir Bag Restraint System; Cruise Control
Systems; Steering Column Switches
Clutch Pedal Position SwitchStarters
Clutch Start SwitchStarters
Combination MeterAnalog Instrument Panels
Constant Control Relay Module (CCRM)Engine Performance; Electric Cooling Fans
Convenience CenterPower Distribution; Illu mination/Interior Lights
Convertible Top MotorPower Convertible Top
Convertible Top SwitchPower Convertible Top
Crankshaft Position (CKP) SensorEngine Performance
Cruise Control ModuleCruise Control Systems
Cruise Control SwitchCruise Control Systems
Condenser Fan Relay(s)Electric Cooling Fans
Data Link Connector (DLC)Engine Performance
Daytime Running Lights ModuleDaytime Running Lights; Exterior Lights
Defogger RelayRear Window Defogger
Diagnostic Energy Reserve Module (DERM)Air Bag Restraint System
Discriminating Sensor (Air Bag)Air Bag Restraint System
DistributorEngine Performance
Door Lock ActuatorsPower Door Locks; Remote Keyless Entry
Door Lock Relay(s)Power Door Locks
Electrochromic MirrorPower Mirrors
Electronic Level Control (ELC) Height SensorElectronic Suspension
Electronic Level Control (ELC) ModuleElectronic Suspension
Engine Coolant Temper ature (ECT) Sending UnitAnalog Instrument Panels
Engine Coolant Temperature (ECT) SensorEngine Performance
Engine Control ModuleEngine Performance; Ge nerators & Regulators;
Starters
ETACS ECUWarning Systems; Power Windows; Remote Keyless Entry
Evaporative (EVAP) Emissions CanisterEngine Performance
EVAP Canister Purge SolenoidEngine Performance
EVAP Canister Vent SolenoidEngine Performance
Exhaust Gas Recirculation (EGR) ValveEngine Performance
Fuel Tank Vacuum SensorEngine Performance
Fog LightsHeadlight Systems; Daytime Running Lights
Fog Light RelayHeadlight Systems; Daytime Running Lights
Fuel Door Release SolenoidPower Fuel Door Release
Fuel Gauge Sending UnitAnalog Instrument Panels
Fuel InjectorsEngine Performance
Fuel PumpEngine Performance
Fuel Pump RelayEngine Performance; Power Distribution


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Fuse/Relay BlockPower Distribution
Fusible LinksPower Distribution; Generators & Regulators;
Starters
GeneratorGenerators & Regulators; Engine Performance;
Power Distribution
Generic Electronic Module (GEM)Body Control Modules; Electronic Suspension
Glow Plug RelayEngine Performance
Glow PlugsEngine Performance
GroundsGround Distribution
Headlight Door ModuleHeadlight Doors
Headlight RelayHeadlight Systems; Daytime Running Lights
HeadlightsHeadlight Systems; Daytime Running Lights
Heated Oxygen Sensor(s) (HO2S)Engine Performance
Heated Windshield Control ModuleHeated Windshields
Height SensorElectronic Suspension
HornsSteering Column Switches
Horn RelaySteering Column Switches
Idle Air Control (IAC) Motor/ValveEngine Performance
Ignition Coil(s)Engine Performance
Ignition Key Lock CylinderAnti-Theft System
Ignition ModuleEngine Performance
Ignition SwitchPower Distribution; Engine Performance; Generators & Regulators; Starters
Illuminated Entry ModuleIllumination/Interior Lights
Illumination LightsIllumination/Interior Lights
Impact SensorAir Bag Restraint System
Inertia Fuel Shutoff SwitchEngine Performance
Inhibit RelayStarters
Instrument ClusterAnalog Instrument Panels
Intake Air Temperature (IAT) SensorEngine Performance
Interior LightsIllumination/Interior Lights
Interlock SwitchStarters
Junction BlockPower Distribution
Keyless Entry ReceiverRemote Keyless Entry
Key Reminder SwitchStarters
Knock SensorEngine Performance
Lamp Control ModuleExterior Lights
License Plate LampExterior Lights
Lighting Control ModuleLighting Control Modules; Anti-Theft System; Daytime Running Lights; Headlight Systems
Lower RelayPower Convertible Top
Malfunction Indicator Light (MIL)Engine Performance; Instrument Panels
Manifold Absolute Pr essure (MAP) SensorEngine Performance
Mass Airflow (MAF) SensorEngine Performance


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SIR Coil Assembly (Clockspring)Air Bag Restraint System
Slip Ring (Clockspring)Air Bag Restraint System; Steering Column Switches
SRS Control ModuleAir Bag Restraint System
Starter MotorStarters
Starter Interrupt RelayStarters
Starter SolenoidStarters
Starter RelayStarters
Steering Wheel Position SensorAnti-Lock Brakes
StoplightsExterior Lights
Stoplight SwitchEngine Performance; Cruise Control Systems;
Anti-Lock Brakes
Sun Roof ECUPower Sun Roof
Sun Roof MotorPower Sun Roof
Sun Roof Position SensorPower Sun Roof
TaillightsExterior Lights
Throttle Position (TP) SensorEngine Performance
Torque Converter Clutch Solenoid/SwitchEngine Performance
Traction Control SwitchAnti-Lock Brakes
Trailer Tow ConnectorExterior Lights
Trailer Tow RelayExterior Lights
Transmission/TransaxleEngine Performance
Transmission Control Module (TCM)Engine Performance; Starters
Transmission Range SensorStarters; Back-Up Lights; Engine Performance
Transmission Range SwitchBack-Up Lights; Engine Performance; Anti-Theft
System
Turn Signal FlasherExterior Lights
Turn Signal LightsExterior Lights
Twilight Sentinel SwitchHeadlight Systems; Daytime Running Lights
Vapor Canister Le ak Detection PumpEngine Performance
Vehicle Control Module (VCM)Engine Performance
Vehicle Dynamic ModuleElectronic Suspension
Vehicle Speed Control ServoCruise Control Systems
Vehicle Speed SensorData Link Connectors; Analog Instrument Panels;
Cruise Control Systems; Electronic Suspension
Voltage RegulatorGenerators & Regulators
Water-In-Fuel SensorEngine Performance; Analog Instrument Panels
Wheel Speed SensorsAnti-Lock Brakes
Window Timer ModulePower Convertible Top
Windshield Intermittent Wiper RelayWiper/Washer Systems
Windshield Washer MotorWiper/Washer Systems
Wiper MotorWiper/Washer Systems

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