length FORD MUSTANG 2003 Service Manual

GENERAL PROCEDURES
Weld Nut Repair —
Missing Weld Nut, Restraints Control
Module (RCM)
WARNING: To avoid accidental deployment and possible personal injury, the backup
power supply must be depleted before repairing or replacing any front or side air bag
supplemental restraint system (SRS) components and before servicing, replacing, adjusting or
striking components near the front or side air bag sensors, such as doors, instrument panel,
console, door latches, strikers, seats and hood latches.
Please refer to the appropriate vehicle shop manual to determine location of the front air bag
sensors.
The side air bag sensors are located at or near the base of the B- pillar.
To deplete the backup power supply energy, disconnect the battery ground cable and wait at
least one minute. Be sure to disconnect auxiliary batteries and power supplies (if equipped).
NOTE: There are two procedures to repair a vehicle having missing restraints control module attaching
weld nut(s). Read both procedures before proceeding with the repair.
NOTE: If two or more weld nuts are missing, do not install the "J" nuts as outlined in Weld Nut Repair
—" J" Nut, Restraints Control Module (RCM). Weld nuts must be installed as outlined in this
procedure.
NOTE: Radiator support repair shown, others are similar.
1. Obtain a 6 mm (0.24 in) weld nut (part number N806285- S190).
2. Obtain a 6 mm (0.24 in) grounding screw (part number N806327- S190).
3. Route a sufficient length of copper welding wire through the weld nut clearance hole and back out an adjacent access hole.
4. Feed the copper welding wire through the weld nut, then through a standard flatwasher.
SECTION 501-
20B: Supplemental Restraint System 2003 Mustang Workshop Manual Klj . 1 ba
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2.
WARNING: Incorrect centralization may result in premature component failure. If in
doubt when centralizing the clockspring, repeat the centralizing procedure. Failure to
follow this instruction may result in personal injury.
CAUTION: Make sure the road wheels are in the straight ahead position.
NOTE: If a clockspring has rotated out of center, follow through with this step.
Centralize the clockspring. 1. Hold the clockspring outer housing stationary.
2. Depress the clockspring locking tab to release the rotor.
3. CAUTION: Overturning will destroy the clockspring. The internal ribbon wire
acts as the stop and can be broken from its internal connection.
While holding the clockspring locking tab in the released position, turn the rotor
counterclockwise, carefully feeling for the ribbon wire to run out of length, and a slight
resistance is felt. Stop turning at this point.
4. While holding the clockspring locking tab in the released position, turn the clockspring
clockwise approximately three turns. This is the center point of the clockspring.
„Release the clockspring locking tab. Do not allow the rotor to turn from this
position.
All vehicles 3. NOTE: Slight turning of the clockspring rotor is allowable for alignment purposes to the steering
column.
With the flats of the clockspring aligned to the flats of the steering column, slide the clockspring
onto the steering column engaging the retaining tabs.
4. Route the clockspring wire harness down the side of the steering column and into the holders. Klj . 6 ba
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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
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GENERAL INFORMATI


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