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ARMING THE SYSTEM
1. Turn the ignition key to the LO CK position and remove the key.
2. On vehicles with a passenger side ai r bag, reconnect the yellow two-way
connector assembly located near the yellow 24-way DERM harness
connector. Install the glov e box door assembly.
3. Connect the yellow two-way connector assembly at the base of the
steering column.
Always be sure to reinstall the Connec tor Position Assurance (CPA) device.
4. Install the left side trim panel and rein stall the fuse in the fuse block.
5. Turn the ignition key to the RUN posit ion and verify that the warning lamp
flashes seven to nine times and then turn s OFF. If it does not operate as
described, have the system repair ed by a qualified technician.
HEATING AND AIR CONDITIONING
BLOWER MOTOR
REMOVAL & INSTALLATION 1. Disconnect the negative battery cable. If necessary, remove the diagonal
fender brace at the right rear corner of the engine compartment to gain
access to the blower motor.
2. Disconnect the electrical wiring fr om the blower motor. If equipped with
air conditioning, remove the blower relay and bracket as an assembly
and swing them aside.
3. Remove the blower motor cooling tube.
4. Remove the blower mo tor retaining screws.
5. Remove the blower motor and fan as an assembly from the case.
To install: 6. Position the blower motor into pl ace and install the retaining screws.
7. Install the blower motor cooling tube.
8. Connect all the electrical connections.
9. Connect the negative battery cable.
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DOME LIGHT
1. Remove the courtesy lamp fuse.
2. Remove the lens by gently squeezing the edge and pulling down.
3. Remove the bulb.
4. Installation is the reverse of removal.
Fig. 11: Dome lamp assembly
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FUSE BLOCK
The fuse block on some models is loca
ted under the instrument panel next to
the steering wheel an d is a swing down unit. Other models have the fuse block
located on the left side of the dash.
Each fuse block uses miniature fuse s which are designed for increased circuit
protection and greater reliabi lity. The compact fuse is a blade terminal design
which allows easy pull-out/push- in removal and replacement.
Although the fuses are interchangeable , the amperage values are not. The
values are usually molded in bold, color coded, easy to read numbers on the
fuse body. Use only fuses of equal replacement valve.
A blown fuse can easily be checked by visual inspection or by continuity
checking.
Fig. 1: The fuse block is located behind this access panel
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Fig. 2: Fuses on 1982-1984 models
Fig. 3: Convenience center on 1982-1984 models
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Fig. 4: Fuses on 1985-1989 models
Fig. 5: Convenience center on 1985-1989 models
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Fig. 6: Fuses on 1990-1992 models
Fig. 7: Convenience center on 1990-1992 models
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FUSIBLE LINKS
In addition to circuit breakers and fuses,
the wiring harness incorporates fusible
links to protect the wiring. Links are used rather than a fuse, in wiring circuits
that are not normally fused, such as th e ignition circuit. The fusible links are
color coded red in the charging and load circuits to match the color coding of
the circuits they protect. Each link is four gauges smaller than the cable it
protects, and is marked on the insulation with the gauge size because the
insulation makes it appear heavier than it really is. The engine compartment
wiring harness has several fusible links. The same size wire with a special
Hypalon insulation must be used w hen replacing a fusible link.
For more details, see the information on fusible links at the beginning of this
section.
The links are located in the following areas:
1. A molded splice at the starter solenoid Bat terminal, a 14 gauge red wire.
2. A 16 gauge red fusible link at the j unction block to protect the unfused
wiring of 12 gauge or larger wire. This link stops at the bulkhead
connector.
3. The alternator warning light and fiel d circuitry is protected by a 20 gauge
red wire fusible link used in the batte ry feed-to-voltage regulator number
3 terminal. The link is installed as a molded splice in the circuit at the
junction block.
4. The ammeter circuit is protected by two 20 gauge fusible links installed
as molded splices in the circuit at t he junction block and battery to starter
circuit.
REPLACEMENT 1. Determine the circuit that is damaged.
2. Disconnect the negative battery terminal.
3. Cut the damaged fuse link from the harness and discard it.
4. Identify and procure the proper fuse link and butt connectors.
5. Strip the wire about
1/2 in. (13mm) on each end.
6. Connect the fusible link and crimp the butt connectors making sure that the wires are secure.
7. Solder each connection with resin core solder, and wrap the connections
with plastic electrical tape.
8. Reinstall the wir e in the harness.
9. Connect the negative battery terminal and test the system for proper
operation.
CIRCUIT BREAKERS
Various circuit breakers are located under the instrument panel. In order to gain
access to these components, it may be ne cessary to first remove the under
dash padding. Most of the circuit breakers are located in the convenience
center or the fuse panel.
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alternating current developed
within the stator windings to a direct (DC) current
at the output (BAT) terminal. Three of these diodes are negative and are
mounted flush with the end frame while t he other three are positive and are
mounted into a strip called a heat sink. The positive diodes are easily identified
as the ones within small cavities or depressions.
The alternator charging system is a negative (-) ground system which consists
of an alternator, a regulat or, a charge indicator, a storage battery and wiring
connecting the components, and fuse link wire.
The alternator is belt-driven from t he engine. Energy is supplied from the
alternator/regulator system to the rotati ng field through two brushes to two slip-
rings. The slip-rings are mounted on the rotor shaft and are connected t\
o the
field coil. This energy supplied to the ro tating field from the battery is called
excitation current and is used to init ially energize the field to begin the
generation of electricity. Once the alter nator starts to generate electricity, the
excitation current comes from its ow n output rather than the battery.
The alternator produces power in the form of alternating current. The alternating
current is rectified by 6 diodes into dire ct current. The direct current is used to
charge the battery and power the rest of the electrical system.
When the ignition key is turned ON, current flows from the battery, through the
charging system indicator light on the in strument panel, to the voltage regulator,
and to the alternator. Since the alternat or is not producing any current, the
alternator warning light comes on. When the engine is started, the alternator
begins to produce current and turns the alte rnator light off. As the alternator
turns and produces current, the current is divided in two ways: part to the
battery(to charge the battery and power the electrical components of the
vehicle), and part is returned to the alte rnator (to enable it to increase its
output). In this situation, the alternator is receiving current from the battery and
from itself. A voltage regulat or is wired into the current supply to the alternator
to prevent it from receiving too much cu rrent which would cause it to put out too
much current. Conversely, if the voltage regulator does not allow the alternator
to receive enough current, the battery will not be fully charged and will
eventually go dead.
The battery is connected to the alternator at all times, whether the ignition key is
turned ON or not. If the battery were shorted to ground, the alternator would
also be shorted. This woul d damage the alternator. To prevent this, a fuse link
is installed in the wiring between the battery and the alternator. If the battery is
shorted, the fuse link melts, protecting the alternator.
An alternator is better that a convent ional, DC shunt generator because it is
lighter and more compact, because it is designed to supply the battery and
accessory circuits through a wide range of engine speeds, and because it
eliminates the necessary maintenance of replacing brushes and servicing
commutators.
PRECAUTIONS