1988 FORD BRONCO check engine light

67
refer to the chapter titledServicing Your Bronco
in this Owner Guide for instructions on checking
and replacing fuses.
*
[ST06640( ALL)05/95]
RWARNING
DO NOT DRIVE YOUR VEHICLE UNTIL
YOU VERIFY THAT THE BRAKELAMPS
ARE WORKING.
*
[ST06775( ALL)03/95]
For cold or warm engines:
*
[ST06800( ALL)03/95]
If the engine still does not start after two
attempts:
*
[ST06825( ALL)04/95]
1. Turn the ignition key to the OFF position.
*
[ST06851( ALL)04/95]
2. Press the accelerator all the way to the floor
and hold it.
*
[ST06876( ALL)04/95]
3. Turn the ignition key to the START position.
*
[ST06900( ALL)04/95]
4. Release the ignition key when the engine
starts.
*
[ST06925( ALL)04/95]
5. Release the accelerator gradually as the
engine speeds up. Then drive away in the
normal manner.
*
[ST06951( ALL)04/95]
If the engine still does not start, the fuel pump
shut-off switch may have been triggered. For
directions on how to reset the switch seeFuel
Pump Shut-Off Switchlater in this chapter.
*
[ST07300(BEF )05/95]
A computer system controls the engine's idle
speed. When you start your vehicle, the engine's
idle speed normally runs higher than when it's
warmed up. These faster engine speeds will
make your vehicle move slightly faster than its
normal idle speed. It should, however, slow
down after a short time. If it does not, have the
idle speed checked.
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Update:Fri Jun 9 15:30:44 1995
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70
*
[ST08260( ALL)05/95]
RWARNING
If you see or smell fuel, do not reset the
switch or try to start your vehicle. Have
all the passengers get out of the vehicle
and call the local fire department or a
towing service.
*
[ST08270( ALL)03/95]
If your engine cranks but does not start after a
collision or substantial jolt:
*
[ST08280( ALL)04/95]
1. Turn the ignition key to the OFF position.
*
[ST08290( ALL)03/95]
2. Check under the vehicle for leaking fuel.
*
[ST08300( ALL)03/95]
3. If you do not see or smell fuel, push the red
reset button down. If the button is already
set, you may have a different mechanical
problem.
*
[ST08310(BEF )03/95]
4. Turn the ignition key to the ON position for
a few seconds, then turn it to the OFF
position.
*
[ST08330( ALL)03/95]
5. Check under the vehicle again for leaking
fuel.If you see or smell fuel, do not start
your vehicle again.If you do not see or
smell fuel, you can try to start your vehicle
again.
*
[ST08340( ALL)03/95]
6. Check all vehicle warning lights before
driving your vehicle.
*
[ST08350(BEF )03/95]
quarter page art:0020107-A
Reset button for fuel pump shut-off switch
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Update:Fri Jun 9 15:30:44 1995
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78
*
[LG04150(BEF )02/95]
Safety Belt Warning Light and Chime
*
[LG04301(BEF )03/95]
This warning light and chime remind you to
fasten your safety belt. The following conditions
will take place:
*
[LG04325(BEF )03/95]
q
If the safety belt is not buckled when the key
is turned to the ON position, the light comes
on for 1 to 2 minutes and the chime sounds
for 4 to 8 seconds.
*
[LG04351(BEF )02/95]
q
If the safety belt is buckled while the light is
on and the chime is sounding, both the light
and chime turn off.
*
[LG04365(BEF )05/95]
q
If the safety belt is buckled before the
ignition is turned to the ON position, neither
the light nor the chime will come on.
*
[LG04400( ALL)10/92]
one inch art:0020046-B
Safety belt warning light symbol
*
[LG04500( ALL)03/95]
Check Engine Warning Light
*
[LG04525( ALL)05/95]
The Powertrain On-Board Diagnostic II (OBD II)
system consists of the hardware and software
necessary to monitor the operation of the
powertrain. The OBD II system is designed to
check the function of the vehicle's powertrain
control system during normal operation. If an
emission problem is detected, the Check Engine
Warning Light (in the cluster) is turned on.
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79
*
[LG04550( ALL)05/95]
one inch art:0020048-A
Check engine warning light symbol
*
[LG04575( ALL)05/95]
Modification or additions to the vehicle may
cause incorrect operation of the OBD II system.
Additions such as burglar alarms, cellular
phones, and CB radios must be carefully
installed. Do not install these devices by tapping
into or running wires close to powertrain control
system wires or components.
*
[LG04600( ALL)05/95]
The light comes on briefly when you turn the
ignition key toON, but it should turn off when
the engine starts. If the light does not come on
when you turn the ignition toONor if it comes
on and stays on when you are driving, have
your vehicle serviced as soon as possible. This
indicates a possible problem with one of the
vehicle's emission control systems. You do not
need to have your vehicle towed in.
*
[LG04625( ALL)05/95]
If the light turns on and off at one (1) second
intervals while you are driving the vehicle, it
means that the engine is misfiring. If this
condition persists, damage could occur to the
engine or catalytic convertor. Have your vehicle
serviced at the first opportunity. You do not
need to have your vehicle towed in.
*
[LG04650( ALL)05/95]
If the light turns on and off on rare occasions
while you are driving, it means that a
malfunction occurred and the condition corrected
itself.
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80
*
[LG04675( ALL)05/95]
An example of a condition which corrects itself
occurs when an engine running out of fuel
begins to misfire. In this case, the Check Engine
Warning Light may turn on and will then set a
Diagnostic Trouble Code indicating that the
engine was misfiring while the last of the fuel
was being consumed. After refueling, the Check
Engine Warning Light will turn off after the
vehicle has completed three consecutive warm
up cycles without a misfire condition occurring.
A warm up cycle consists of engine start from a
cold condition (engine at ambient temperature)
and running until the engine reaches normal
operating temperature.
*
[LG04700( ALL)05/95]
On the fourth engine start up, the Check Engine
Warning Light will turn off as soon as the
engine begins to crank. It is not necessary to
have the engine serviced.
*
[LG04725( ALL)05/95]
Under certain conditions, the Check Engine
Warning Light may come on if the fuel cap is
not properly installed. If the Check Engine
Warning Light comes on and you suspect that
the fuel cap is not properly installed, pull off the
road as soon as it is safely possible and turn off
the engine. Remove and replace the fuel cap,
making sure it is properly seated.
*
[LG04750( ALL)05/95]
After completing the three consecutive warm up
cycles and on the fourth engine start up, the
Check Engine Warning Light should turn off. If
the light does not go off after the fourth engine
restart, have your vehicle serviced by your
dealer or a qualified technician.
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81
*
[LG05900( ALL)01/95]
Charging System Light
*
[LG06000( ALL)03/95]
This light, shown as a battery symbol on your
cluster, indicates that your battery is not being
charged and that you need to have the electrical
system checked.
*
[LG06050( ALL)03/91]
one inch art:0020777-A
The charging system light
*
[LG06100( ALL)05/95]
This light comes on every time you turn the
ignition to the ON or START position (engine
off). The light should go off when the engine
starts and the alternator begins to charge.
*
[LG06300(B FM)01/95]
If the light stays on or comes on when the
engine is running, have the electrical system
checked as soon as possible.
*
[LG06305(BEF )06/93]
Supplemental Air Bag Readiness Light and
Tone Generator
*
[LG06310(BEF )06/93]
This light illuminates for six seconds when the
ignition is turned to the ON position. If the light
fails to illuminate, continues to flash, remains on,
or if a series of five beeps is heard, have the
system serviced as soon as possible.
[LG06320(B F )05/95]
one inch art:0000653-C
Supplemental air bag readiness light
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205
*
[DR22940(BE )10/94]
q
During an Anti-lock stop, the driver will
notice a brake pedal pulsation and hear some
noise from the engine compartment. This is
an indication that the 4WABS system is
working correctly and is normal.
*
[DR22945(BE )05/95]
RWARNING
The Anti-lock system does NOT decrease
the time necessary to apply the brakes.
Always leave enough room between the
vehicle in front of you and your vehicle.
*
[DR22950(BE )05/95]
4WABS driver warning light
[DR22955(BE )08/94]
The 4WABS computer continuously monitors the
system while driving for any electrical faults or
system malfunctions. In addition, the 4WABS
computer performs an initial system check called
bulb proveout when the vehicle ignition is
switched on. During bulb proveout, the amber
ªABSº light on the instrument cluster will
momentarily illuminate and then go out.
*
[DR22960(BE )03/93]
NOTE: After starting the vehicle and upon
initial drive-off, the driver may notice
a single pulse of the brake pedal and a
noise from the engine compartment.
This is part of the initial system check
and is normal.
[DR22965(BE )08/94]
Should a malfunction in the 4WABS system
occur, the amber ªABSº light on the instrument
cluster will come on and stay on indicating that
the antilock system has been shut down and the
vehicle needs to be serviced. Normal braking is
not affected unless the red brake warning light
is also illuminated.
File:ltdrb.ex
Update:Fri Jun 9 15:26:57 1995
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209
*
[DR24950(B F )03/95]
RWARNING
When parking, do not use the gearshift in
place of the parking brake. Turn the key
to LOCK whenever you leave your
vehicle. Always set the parking brake
fully and make sure that the gearshift is
securely latched in P (Park) (automatic
transmission) or in 1 (First) (manual
transmission). Never leave your vehicle
unattended while it is running. If you do
not take these precautions, your vehicle
may move unexpectedly and injure
someone.
[DR24970(B F )05/95]
When the transfer case is in the N (Neutral)
position, the engine and transmission are
disconnected from the rest of the driveline.
Therefore, the vehicle is free to roll even if the
automatic transmission is in P (Park) or the
manual transmission is in gear.
*
[DR24975(B F )05/95]
RWARNING
Do not leave the vehicle unattended with
the transfer case in the N (Neutral)
position. Always set the parking brake
fully and turn off the ignition when
leaving the vehicle.
*
[DR25000(B FM)03/93]
To release the parking brake, press the service
brake pedal with your right foot and pull the
parking brake release lever.
*
[DR25050( ALL)01/93]
RWARNING
If the parking brake is fully released, but
the Brake System light remains on, have
the brakes checked immediately. They
may not be working properly.
File:ltdrb.ex
Update:Fri Jun 9 15:26:57 1995
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