2015 Citroen C4 CACTUS ECU

98
C4-cactus_en_Chap05_conduite_ed02-2014
Flashing of the dashes indicates a fault with the cruise   control.
Have
  it   checked   by   a   CITROËN   dealer   or   a  
q

ualified
 w
orkshop.
Operating fault Switching off
F Turn wheel 1 to the "0" p osition. T
he   display   of   information   related   to   the  
c

ruise   control   disappears. When the cruise control is switched on,
be
  careful   if   you   maintain   the   pressure  o
n   one   of   the   programmed   speed  
c

hanging   buttons:   this   may   result   in   a  
v

ery   rapid   change   in   the   speed   of   your  
v

ehicle.
do n

ot use the cruise control on
slippery
  roads   or   in   heavy   traffic.
on a s

teep descent, the cruise control
will not be able to prevent the vehicle
from
  exceeding   the   programmed   speed.
On
  steep   climbs   or   when   towing,   the  
p

rogrammed   speed   may   not   be   reached  
o

r   maintained.
The
  use   of   mats   not   approved   by  
C

ITROËN   may   inter fere   with   the  
o

peration   of   the   cruise   control.
To
  avoid   any   risk   of   jamming   of   the  
ped

als:
-
 
e
nsure   that   the   mat   is   secured  
c

o r r e c t l y,
-
 
n
ever   fit   one   mat   on   top   of   another.
It
 
is
 
possible
 
to
 
exceed
 
the
 
programmed
 
speed
 
t

emporarily
 
by
 
pressing
 
the
 
accelerator
 
pedal.
To
 
return
 
to
 
the
 
programmed
 
speed,
 
simply
 
r

elease the accelerator pedal until the
programmed
 
cruise
 
speed
 
is
 
reached
 
again.
Exceeding the programmed
speed
once switched on, you can pause the cruise
control   at   any   time   by   pressing   button   4:   the  
s

creen   confirms   the   pause.
Pause
If the programmed speed is exceeded, the   displayed   speed   flashes.
on

ce the speed of the vehicle returns
to
  the   programmed   speed   setting,   the  
d

isplay   becomes   steady   again.
The cruise control is paused
 m

anually
 o

r   by   pressing   the   brake   or   clutch   pedal  
o

r   if   the   ESP   system   is   invoked   for  
s

afety   reasons.
Driving

124
C4-cactus_en_Chap07_securite_ed02-2014
direction indicators
F Left:  lower   the   lighting   stalk   passing   the  p
oint   of   resistance.
F
 
R
ight:   raise   the   lighting   stalk   passing   the  
p

oint   of   resistance.
Three flashes of the direction
indicators
F Press briefly upwards or downwards, without   going   beyond   the   point   of  
r

esistance;   the   direction   indicators   will  
f

lash   3   times.
Hazard warning lam ps
A visual warning by means of the direction i
ndicators to alert other road users to a vehicle
breakdown,
  towing   or   accident.
F

P
ress this button, the direction indicators
flash.
They
  can   operate   with   the   ignition   off.
Automatic operation of
hazard warning lamps
When braking in an emergency, depending on the   deceleration,   the   hazard   warning   lamps  
c

ome   on   automatically.
They
  switch   off   automatically   the   first   time   you  
a

ccelerate.
F
 
Y
ou   can   also   switch   them   off   by   pressing  
t

he   button.
Safety

125
C4-cactus_en_Chap07_securite_ed02-2014
This system allows you to make an emergency or   assistance   call   to   the   emergency   services   or  
t

o   the   dedicated   CITROËN   service.
Emergency or 
a

ssistance call
For more information on the use of this f
unction,   refer   to   the   "Audio   and   telematics"  
s

ection.
Horn
F Press   the   central   part   of   the   steering  w
heel.
7
Safety

126
C4-cactus_en_Chap07_securite_ed02-2014
Under-inflation detection
The system monitors the pressures in the four t
yres,   once   the   vehicle   is   moving.
It
  compares   the   information   given   by   the   four  
w

heel speed sensors with reference values,
which must be reinitialised ever y time the
tyre pressures are adjusted or a wheel
changed .
The
  system   triggers   an   alert   as   soon   as   it  
d

etects a drop in the inflation pressure of one
or
  more   tyres. The
  under-inflation   detection   system  
d

oes   not   replace   the   need   for   vigilance  
o

n   the   part   of   the   driver.
This
  system   does   not   avoid   the   need   to  
c

heck   the   tyre   pressures   (including   the  
s

pare   wheel)   every   month   as   well   as  
b

efore   a   long   journey.
Driving
  with   under-inflated   tyres   impairs  
r

oad   holding,   extends   braking   distances  
a

nd   causes   premature   tyre   wear,  
par

ticularly under arduous condition
(high
  loading,   high   speed,   long   journey).
System
  which   automatically   checks   the   pressures   of   the   tyres   while   driving.
The inflation pressures defined for
your vehicle can be found on the tyre
pressure
  label.
See
  the   "Identification   markings"  
s

ection.
Tyre
  pressures   should   be   checked  
w

hen   the   tyres   are   "cold"   (vehicle  
s

topped   for   1   hour   or   after   a   journey   of  
l

ess   than   6   miles   (10   km)   at   moderate  
s

peeds).
Other wise
  (when   hot),   add   0.3   bar   to  
t

he   pressures   shown   on   the   label.
Driving
  with   under-inflated   tyres  
i

ncreases   fuel   consumption.
Safety

127
C4-cactus_en_Chap07_securite_ed02-2014
Under-inflation alertReinitialisation
Before reinitialising the system, ensure t
hat the pressures of the four tyres are
correct for the use of the vehicle and in
line
  with   the   recommendations   on   the  
t

yre   pressure   label.
The
  under-inflation   detection   system  
d

oes   not   give   a   warning   if   a   pressure   is  
i

ncorrect   at   the   time   of   reinitialisation.
This
 
is
 
given
 
by
 
fixed
 
illumination
 
of
 
t

his
 
warning
 
lamp,
 
accompanied
 
by
 
a

n
 
audible
 
signal
 
and
 
the
 
display
 
of
 
a
 
m

essage.
It
 
is
 
necessary   to   reinitialise   the   system   every  
t

ime
 
one   or   more   tyre   pressure   is   adjusted,   and  
a

fter
 
changing   one   or   more   wheels.
A
 
label   attached   to   the   middle   pillar,   driver's  
s

ide,
 
gives   a   reminder   of   this.
F
 
R

educe
 
speed
 
immediately,
 
avoid
 
e

xcessive
 
steering
 
movements
 
and
 
sudden
 
b

raking.
F

S

top the vehicle as soon as it is safe to do
so. F
 
I

f
 
you
 
have
 
a
 
compressor
 
(such
 
as
 
the
 
one
 
i

n
 
the
 
temporary
 
puncture
 
repair
 
kit),
 
check
 
t

he
 
pressures
 
of
 
the
 
four
 
tyres
 
when
 
cold.
 
I

f
 
it
 
is
 
not
 
possible
 
to
 
carry
 
out
 
this
 
check
 
s

traight
 
away,
 
drive
 
carefully
 
at
 
reduced
 
s

peed.
or
F

I

n the event of a puncture, use the
temporary
 
puncture
 
repair
 
kit
 
or
 
the
 
spare
 
w

heel
 
(depending
 
on
 
equipment),
The loss of pressure detected does not
always
 
cause
 
visible
 
bulging
 
of
 
the
 
tyre.
 D
o
 
not
 
satisfy
 
yourself
 
with
 
just
 
a
 
visual
 c
heck. The
 
alert
 
is
 
maintained
 
until
 
the
 
system
 i
s r
einitialised.
7
Safety

128
C4-cactus_en_Chap07_securite_ed02-2014
Reinitialisation of the system is done in the the touch   screen   tablet,   with   the   ignition   on   and   the  
v

ehicle   stationary.
F
 
I
n   the   secondary   page,   press  
"U

nder-inflation initialisation ".
F
 
C
onfirm   the   instruction   by   pressing   "Ye s ",
an
  audible   signal   and   a   message   confirm  
th

e
 r
einitialisation.
The
  new   pressure   settings   registered   are  
c

onsidered to be reference values by the
system.
Operating fault
The flashing and then fixed illumination of the u nder-inflation w arning lam p a ccompanied b

y   illumination   of   the   "service"   warning   lamp  
i

ndicates   a   fault   with   the   system.
In
  this   case,   under-inflation   monitoring   of   the  
t

yres   is   no   longer   assured.
Have
  the   system   checked   by   a   CITROËN  
d

ealer   or   a   qualified   workshop.
Before
  doing   anything   to   the   system,  
t

he   pressures   of   the   four   tyres   must   be  
c

hecked   and   the   system   reinitialised.
The under-inflation alert can only be
considered reliable if reinitialisation of
the
 
system
 
is
 
done
 
with
 
the
 
the
 
four
 
tyre
 
p

ressures
 
correctly
 
set.
Snow chains
The system does not have to be r einitialised   after   fitting   or   removing  
sn

ow
 c
hains.
F

Sel

ect the " Driving assistance "
menu.
Safety

129
C4-cactus_en_Chap07_securite_ed02-2014
Electronic Stability Control (ESC) incorporating the   following   systems:
-
 
a
nti-lock   braking   system   (ABS)   and   the  
e

lectronic   brake   force   distribution   (EBFD),
-
 
e
mergency   braking   assistance   (EBA),
-
 
w
heel   anti-slip   regulation   (ASR)   or   traction  
c

ontrol,
-
 
d
ynamic   stability   control   (DSC).
Electronic stability control (ESC)
Definitions
Anti-lock braking system (ABS)
and electronic brake force
distribution (EBFD)
This system improves the stability and manoeuvrability   of   your   vehicle   when   braking  
a

nd   contributes   towards   improved   control   in  
c

orners, in particular on poor or slippery road
surfaces.
The
  ABS   prevents   wheel   lock   in   the   event   of  
em

ergency
 b
raking.
The
  electronic   brake   force   distribution   system  
m

anages   the   braking   pressure   wheel   by   wheel.
Emergency braking assistance
(EBA)
In an emergency, this system enables you to reach   the   optimum   braking   pressure   more  
q

uickly   and   therefore   reduce   the   stopping  
di

stance.
It
  is   triggered   according   to   the   speed   at   which  
t

he   brake   pedal   is   pressed.   This   is   felt   by   a  
r

eduction in the resistance of the pedal and an
increase
  in   the   effectiveness   of   the   braking.
Anti-slip regulation (ASR)
The ASR system (also known as Traction Control)   optimises   traction   in   order   to   limit  
w

heel   slip   by   acting   on   the   brakes   of   the   driving  
w

heels   and   on   the   engine.   It   also   improves  
t

he directional stability of the vehicle on
acceleration.
Dynamic stability control (DSC)
If there is a difference between the path
followed   by   the   vehicle   and   that   required   by  
t

he   driver,   the   DSC   monitors   each   wheel   and  
a

utomatically   acts   on   the   brake   of   one   or   more  
w

heels   and   on   the   engine   to   return   the   vehicle  
t

o   the   required   path,   within   the   limits   of   the   laws  
o

f   physics.
7
Safety

130
C4-cactus_en_Chap07_securite_ed02-2014
When this warning lamp comes on, coupled with the STOP w arning lam p, a

ccompanied   by   an   audible   signal   and   a
 m

essage,   it   indicates   that   there   is   a   fault
 w

ith   the   electronic   brake   force   distribution
 (

EBFD),   which   could   cause   loss   of   control
 o

f   the   vehicle   when   braking.
Operation
When this warning lamp comes on, accompanied   by   an   audible   signal  
a

nd   a   message,   it   indicates   that   there  
i

s a fault with the ab
S
, which could
cause loss of control of the vehicle
when
 b

raking.
Anti-lock braking system (ABS)
and electronic brake force
distribution (EBFD)When changing  w heels  ( tyres  a nd  r ims),  m
ake   sure   that   these   are   approved   for  
y

our   vehicle.
Normal
  operation   of   the   ABS   may   make  
i

tself   felt   by   slight   vibrations   of   the   brake  
ped

al.
In emergency braking, press
very firmly without releasing the
pressure.
You must stop as soon as it is safe to do so.
In both cases, contact a CITR
oËn

dealer or a
qualified
 w

orkshop.
Safety