sensor FORD EXPEDITION 1997 1.G Owners Manual

Compass zone adjustment
1. Determine which time zone you
are in by referring to the zone
map.
2. Locate compass sensor mounted
at base of mirror.
3. Turn ignition to the On position.
4. Insert a paperclip into the small
hole on the bottom of the compass
sensor. Hold down until ZONE
appears in the trip computer
display.
5. Release pressure on the
paperclip and then slowly press it
down again.
6. Continue to press until your
zone is shown in the trip computer
display and release.
Compass calibration adjustment
Perform this adjustment in an
open area free from steel
structures and high voltage lines.
For optimum calibration, turn off
all electrical accessories and make
sure that all vehicle doors are shut.
1
2
3
4
5
6
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exd_claibration_adjust_compass
Controls and features
52

1. Start the vehicle.
2. Locate compass sensor mounted
at base of mirror.
3. Insert a paperclip into the small
hole on the bottom of the compass
sensor. Hold down until ZONE
appears in the trip computer
display Continue to hold down
until ZONE disappears and CAL is
displayed.
4. Press and hold the MODE
control until CAL appears in the
display (approximately eight
seconds) and release.
5. Drive the vehicle slowly (less
than 5 km/h [3 mph] in circles until
CAL indicator turns off (4±5
complete circles).
6. The compass is now calibrated.
Trip computer (if equipped)
This component displays a variety
of system displays. The appearance
of the component in the overhead
console may vary according to
your vehicle's equipment package.
For more information on the
operation and functions of the trip
computer, refer toTrip computer
in theInstrumentationchapter.
exd_message_center
exd_lamps_overhead_title
Controls and features
53

If the air bag is inflated,
the air bag will not
function again and must be
replaced immediately.Ifthe
air bag is not replaced, the
unrepaired area will increase the
risk of injury in a collision.
The SRS consists of:
²driver and passenger air bag
modules (which include the
inflators and air bags),
²one or more impact and safing
sensors,
²a readiness light and tone
²and the electrical wiring which
connects the components.
The diagnostic module monitors its
own internal circuits and the
supplemental air bag electrical
system readiness (including the
impact sensors), the system wiring,
the air bag system readiness light,
the air bag back up power and the
air bag ignitors.
Determining if the system is
operational
The SRS uses a readiness light in
the instrument cluster or a tone to
indicate the condition of the
system. Refer to theAir bag
readinesssection in the
Instrumentationchapter. Routine
maintenance of the air bag is not
required.
exd_determing_operational
Seating and safety restraints
90

Slot number Amperage Description
6 5 amp Generic electronic module
(GEM), shift interlock, air
suspension module,
heated backlite (HBL)
relay, steering sensor, trip
computer, compass
7 5 amp Console blower, auxiliary
blower relay coil
8 5 amp GEM, radio, RAP module
9 - Not used
10 - Not used
11 30 amp Front wiper motor, washer
motor
12 5 amp OBDII scan tool connector
13 15 amp Brake on/off switch, brake
pressure switch
14 15 amp Interior lamps, delayed
accessory relay, rear wiper
relays
15 5 amp GEM, passive anti-theft
system (PATS) module
16 20 amp High beam headlamps,
high beam indicator
17 10 amp Heated mirrors, heated
mirror switch
18 5 amp Instrument and switch
illumination
19 10 amp Airbag diagnostic monitor,
instrument cluster
20 5 amp GEM, air suspension
module
21 15 amp Starter relay, junction box
fuse #20
Roadside emergencies
142