2002 FORD F750 ABS

Brake reserve system warning (if equipped)
Illuminates to indicate normal
Hydromax booster reserve system
activation when the engine is OFF
and the service brake pedal is
applied, or when the ignition is in
the ON or START position.
This light may also illuminate momentarily if the engine is running and
the driver turns the steering wheel fully in one direction while braking.
If the light remains on while the engine is running, this indicates
inadequate hydraulic booster pressure or reserve pump system failure.
Stop the vehicle safely as soon as possible and seek service immediately.
Brake system warning
Momentarily illuminates when the
ignition is turned to the ON position
and the engine is off. If the brake
warning lamp does not illuminate at
this time seek service immediately.
If equipped with a hydraulic brake system and the warning lamp remains
illuminated after engine start up, this indicates a brake system
malfunction. Stop the vehicle safely as soon as possible and seek service
immediately.
If equipped with an air brake system, the warning light stays on until the
air pressure builds up to 414 kPa (60 psi). If the air pressure drops
below 414 kPa (60 psi) during operation, the remaining brake system is
still operational but the stopping distance will be greater.
Anti-lock brake system (ABS)
Momentarily illuminates when the
ignition is turned to the ON position
and the engine is off. If the light
remains on after the vehicle is
started, continues to flash or fails to
illuminate, have the system serviced immediately. With the ABS light on,
the anti-lock brake system is disabled and normal braking is still effective
unless the brake warning light also remains illuminated.
BRAKE
!
BRAKE
ABS
Instrument Cluster
11

Trailer ABS brake system (if equipped)
Illuminates briefly when the engine
is powered-up and only when a PLC
trailer or a PLC diagnostic tool is
connected. If the light remains on
after the vehicle is started,
continues to flash or fails to illuminate, have the system serviced
immediately.
Parking brake warning (Hydraulic brakes only)
Momentarily illuminates when the
ignition is turned to the ON position
and the engine is off. Also
illuminates when the parking brake
is engaged. If the brake warning
lamp does not illuminate at these
times, seek service immediately.
Safety belt
Illuminates to remind you to fasten
your safety belts. For more
information, refer to theSeating
and safety restraintschapter.
Check trans (Allison automatic transmission)
The lamp will illuminate for several
seconds after the ignition is turned
to the ON position. Illumination of
this light indicates that a problem
has been detected and shifting may
be restricted. Depending upon the
severity of the problem, the
read-out digit on the shifter display
may be blank. Operation may
continue in order to reach service assistance. The ECU may not respond
to shift selector requests, since operating limitations are being placed on
the transmission, i.e. upshifts and downshifts may be restricted.
Direction changes will not occur.
Refer to the Transmission Operator's Manual for more information.
P
BRAKE
CHECK
TRANS
Instrument Cluster
12

If the red BRAKE warning lamp in
the instrument cluster remains
illuminated after engine start up,
this indicates a system failure in the
master cylinder of the brake system.
Stop the vehicle safely as soon as possible and seek service immediately.
If the yellow BRAKE RESERVE
(E-motor) warning light remains on
while the engine is running, this
indicates inadequate hydraulic
booster pressure or reserve pump
system failure. Stop the vehicle safely as soon as possible and seek
service immediately.
Four-wheel anti-lock brake system (ABS) (if equipped)
On vehicles equipped with an anti-lock braking system (ABS), a noise
from the hydraulic pump motor and pulsation in the pedal may be
observed during ABS braking events. Pedal pulsation coupled with noise
while braking under panic conditions or on loose gravel, bumps, wet or
snowy roads is normal and indicates proper functioning of the vehicle's
anti-lock brake system. If the vehicle has continuous vibration or shudder
in the steering wheel while braking, the vehicle should be inspected by a
qualified service technician.
The ABS operates by detecting the
onset of wheel lockup during brake
applications and compensating for
this tendency. The wheels are
prevented from locking even when
the brakes are firmly applied. The
accompanying illustration depicts
the advantage of an ABS equipped
vehicle (on bottom) to a non-ABS
equipped vehicle (on top) during hard braking with loss of front braking
traction.
ABS warning lamp
TheABSwarning lamp in the instrument cluster momentarily illuminates
when the ignition is turned on and the engine is off. If the light does not
illuminate momentarily at start up, remains on after the vehicle reaches
10 to 15 km/h (5 to 10 mph), or continues to flash, the ABS needs to be
serviced.
!
BRAKE
BRAKE
Driving
114

With the ABS light on, the anti-lock brake system is disabled and normal
braking is still effective unless the brake warning light also remains
illuminated. (If your parking brake warning lamp illuminates, have your
vehicle serviced immediately).
Using ABS
²In an emergency or when maximum efficiency from the ABS is
required, apply continuous full force on the brake. The ABS will be
activated immediately, thus allowing you to retain full steering control
of your vehicle and, providing there is sufficient space, will enable you
to avoid obstacles and bring the vehicle to a controlled stop.
²The Anti-Lock system does not decrease the time necessary to apply
the brakes or always reduce stopping distance. Always leave enough
room between your vehicle and the vehicle in front of you to stop.
²We recommend that you familiarize yourself with this braking
technique. However, avoid taking any unnecessary risks.
Parking brake
Apply the parking brake whenever
the vehicle is parked. To set the
parking brake, pull handle up until it
snaps into the locked position.
A properly adjusted parking brake
requires approximately 116 Nm (90
lb-ft) to activate. For maximum
parking brake effectiveness turn
handle clockwise to adjust for wear.
When the parking brake is out of
adjustment, seek service
immediately.
Driving
115

repair. The orange stripe is painted on the air chamber push rod at the
slack adjuster readjustment stroke dimension.
Air brake inspection and adjustment should be performed by a qualified
service technician in accordance with the instructions in the Ford Truck
Service Manual.
Cam brakesÐautomatic slack adjusters
Standard air brakes (cam) are
equipped with automatic brake
adjusters. Automatic adjustment
occurs during forward and reverse
brake applications. Inspect brakes
for proper adjustment at the
intervals listed in the vehicle Service
Maintenance Guide.
Emergency air brake
All vehicles are equipped with a dual brake system. In the unlikely event
of a failure of one system, the second system will function for emergency
stopping. These systems are all controlled by the brake pedal in the
same manner as for normal stops.
Do not continue to operate the vehicle with a failure of one of
the systems. Take the vehicle to your dealer for service
immediately.
Anti-lock braking system (if equipped)
For information on the anti-lock braking system (ABS), refer to
Hydraulic brakesin this chapter.
Driving with ABS
Maintain a steady brake pedal application; you do not need to pump or
remove your foot from the pedal. The ABS keeps the wheels rolling
Driving
121

during braking to maintain control and reduce stopping distances. For
information on the anti-lock braking system (ABS), refer toHydraulic
brakesin this chapter.
Parking brake
Do not use the gearshift selector in place of the parking brake.
Always set the parking brake fully AND make sure the gearshift
selector is in R (Reverse) for vehicles equipped with manual
transmission or N (Neutral) for vehicles with automatic transmission.
Unexpected and possible sudden vehicle movement may occur if
these precautions are not taken.
If the service brakes should fail to operate while the vehicle is in motion,
you can make an emergency stop with the parking brake. The stopping
distance, however, will be much greater than normal. Repairs should be
made immediately to an inoperative air brake system circuit.
Parking brake control
Pull the yellow parking brake knob
out to apply the parking brake. Push
the knob in to release the parking
brake.
This control is used for
parking only. Do not leave
the vehicle unattended after
setting the parking brake without
placing the transmission in R
(Reverse) for manual transmission
or N (Neutral) for automatic
transmission. Use of wheel chocks
is also recommended in hilly or
off-road usage.
Releasing spring brake with air pressure
The air system in all vehicles with spring-actuated rear wheel parking
brakes is equipped with a tank valve located on the supply or service air
PARKING
BRAKE
PULL TO
RELEASE
APPLY
PUSH TO
Driving
122

Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment
Fuse Panel Description
9 5A Switch Illumination (Headlamp, Power
Windows, Power Door Locks), Power
Window Relay, Trailer Hook Up Lamps
(SuperCrewzer only)
10 Ð Not Used
11 30A Wiper Motor, Washer Pump Relay
12 10A Stoplamp Switch (Hydraulic Vehicles Only)
13 20A Radio, Cluster, 7.3L Power Stroke
Powertrain Control Module (PCM), Keep
Alive Memory
14 10A Interior Lamps, Runningboard lamps
(SuperCrewzer only)
15 10A GEM, Interior Lamp Relay, Map Lamps,
Glove Box Lamps (SuperCrewzer only),
Power Mirrors (SuperCrewzer only),
Warning Chime Module (SuperCrewzer
only)
16 15A Highbeams
17 Ð Not Used
18 5A Headlamp switch, GEM
19 15A Engine, Cluster, Cummins PC M, CAT PCM,
7.3L Power Stroke PCM (Idle Valid Switch
Input)
20 15A Starter Relay, GEM
21 10A Daytime Running Lamps (DRL)
22 15A Exhaust Brake (SuperCrewzer only),
Heated Mirrors (SuperCrewzer only), Rear
Air Suspension (SuperCrewzer only)
23 10A Electronic Flasher
24 15A Vacuum Pump, Air Dryer, ABS, Fuel Heater
Relay
25 10A Blower Motor Relay
26 10A Right Low Beam Headlamp
27 Ð Not Used
Roadside Emergencies
154

Fuse/Relay
LocationFuse Amp
RatingPower Distribution Box Description
12 10A* Keyless Entry Module (SuperCrewzer only)
13 10A* Park Brake Adjustment Module
(SuperCrewzer only)
14 Ð Not Used
15 7.5A* Body Builder Prep (Hydraulic Vehicles
Only)
16 10A* Allison 2000/2400 Trans (Except F650
SuperCrewzer)
17 5A* Radio (SuperCrewzer only)
18 Ð Not Used
19 Ð Not Used
20 Ð Not Used
21 10A* GEM (Hydraulic Vehicles Only)
22 Ð Not Used
23 Ð Not Used
24 Ð Not Used
101 40A** ABS (Air Only)
102 20A** Body Builder Prep Run Feed
103 50A** Ignition Switch (JB fuses 8, 9, 11, 19, 20,
22, 23, 24, 25, 29, 30, 31)
104 20A** Power Point
105 20A** Power Door Locks
106 30A** Headlamps
107 50A** Junction Box Battery Feed (fuses 1, 2, 3, 4,
12, 13, 14, 15)
108 40A** Cummins Fuel Heater
109 40A** Power Windows
110 30A** Power Seats (SuperCrewzer only)
111 30A** Body Builder Prep
112 40A** Blower Motor
113 30A** Heated Seats (SuperCrewzer only)
114 30A** E-Brake (SuperCrewzer only)
Roadside Emergencies
157