1996 FORD SUPER DUTY Owners Manual

63
Warning Lights and
Gauges
*
[LG00400( ALL)01/95]
The instrument panel (dashboard) on your
vehicle is divided into several different sections.
The illustrations on the following pages show
the major parts of the instrument panel that are
described in this chapter. Some items shown
may not be on all vehicles.
*
[LG00500(B F )02/95]
Your vehicle has one of the following clusters:
*
[LG00600(B F )11/89]
q
A mechanical cluster
*
[LG00700(B F )11/89]
q
A mechanical cluster with tachometer
*
[LG00900(B F )12/89]
If you are not sure which cluster your vehicle
has, check the diagrams on the following pages
of this section.
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64
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[LG02200(B F )05/95]
full page art:0020036-K
Mechanical cluster
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65
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[LG02400(B F )05/95]
full page art:0020038-N
Mechanical cluster with tachometer
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*
[LG03000( ALL)06/94]
The Mechanical Cluster
*
[LG03100( ALL)06/93]
The following warning lights and gauges are on
the mechanical cluster. All of the warning lights
and gauges alert you to possible problems with
your vehicle. Some of the lights listed are
optional. The following sections detail what each
of these indicators means.
*
[LG03200( ALL)03/95]
Brake System Warning Light
*
[LG03350( EF )06/92]
The red warning light for the brakes can show
three things Ð that either the parking brake is
not fully released, that the brake fluid level is
low in the master cylinder reservoir or the
vacuum pressure is low on diesel engine
vehicles. If the fluid level is low, the brake
system should be checked by a qualified service
technician.
*
[LG03400( ALL)05/94]
This light comes on when you turn the ignition
key to START to verify that the indicator bulb is
working. If the light stays on or comes on after
you have released the parking brake fully, have
the hydraulic brake system serviced.
*
[LG03500( ALL)05/95]
RWARNING
The BRAKE light indicates that the brakes
may not be working properly. Have the
brakes checked immediately.
*
[LG03600( ALL)11/89]
one inch art:0020044-A
Brake warning light symbols
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67
*
[LG03800(BEF )02/95]
Anti-Lock Brake System Warning Light
*
[LG03925(BEF )03/03]
To check theamberABS brake warning light
turn the ignition key to ON. The ABS brake
warning light should glow momentarily.
*
[LG03950(BEF )06/94]
NOTE: If it does not glow momentarily, have
your vehicle's electrical system checked
immediately.
*
[LG03985(BEF )07/94]
NOTE: If the ABS brake warning light begins
to flash in a repeatable flash sequence,
check the rear anti-lock system
continuous power fuse and brake lights
for proper operation.
[LG04050(BEF )05/95]
one inch art:0020913-B
Anti-lock warning light symbol
*
[LG04100(BEF )05/95]
RWARNING
If the anti-lock brake system warning
light remains on or comes on while
driving, have the braking system checked
by a qualified service technician as soon
as possible.
*
[LG04125(BEF )05/95]
NOTE: If a fault occurs in the anti-lock
system, and the brake warning light is
not lit, the anti-lock system is disabled
but normal brake function remains
operational.
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68
*
[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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69
*
[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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70
*
[LG04662( F )05/95]
NOTE: If your light truck is equipped with
dual fuel tanks, the ªCHECK ENGINEº
light may come on if fuel is restricted
to the engine or if the fuel flow is
momentarily disrupted because of an
empty fuel tank before you switched to
the auxiliary fuel tank. This condition
is normal and the light should go off
after full fuel flow is restored.
*
[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.
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