Iveco Daily. Manual — part 422
214
ELECTRIC/ELECTRONIC SYSTEM
D
AILY
Base - May 2004
Through suitable control logic the control unit is able to
memorise and display a series of faults (present and/or
intermittent) that may occur to the system.
In the event of these faults the control unit still continues
controlling the system replacing the abnormal values detected
with suitable recovery" values which ensure minimal
operation of the system.
As a fault arises, the control unit shows the wording Error
Cli" on the display on the instrument cluster.
- For preliminary information it is possible to show any
faults on the display on the instrument cluster following
a precise procedure.
- For complete more thorough diagnostics it is however
necessary to use the diagnostic tools available to the
service network such as MODUS.
Diagnostics through blink code
To find out which is the component concerned, proceed as
follows:
Move the temperature setting knob to the HI" position (Ref.
A Figure 249).
Move the fan control knob to the 0" position (Ref. B
Figure 249).
Move the air distribution knob to the MAX DEF" position
(Ref. C Figure 249)
Engage the ignition switch (Figure 250) at the services
position (+15).
Within 10 seconds, operate the fan control knob (Figure 250)
with the following sequence:
0" ⇒ AUTO" ⇒ 0" ⇒ AUTO" ⇒ 0".
At this point the display on the instrument cluster
(Figure 251) displays the error code. If more than one error
is present, they are displayed every 3 seconds.
CLIMATE CONTROLS ASSEMBLY
A. Required temperature setting knob
B. Speed control knob
C. Air distribution knob
IGNITION SWITCH AND FAN SPEED CONTROL
KNOB SETTING
DISPLAY ON INSTRUMENT CLUSTER
Cli
⇒ 54
Error
30 / 15
A
B
C
Figure 249
Figure 250
Figure 251
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ELECTRIC/ELECTRONIC SYSTEM
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D
AILY
Blink codes
The table below shows the different error codes that may appear on the display on the instrument cluster instead of CLI" during
diagnostics.
Codice
Description
14
Short circuit or open circuit of blown air temperature sensor
32
Short circuit towards earth of outside temperature sensor
34
Short circuit or open circuit of outside air temperature sensor
42
Short circuit towards earth of inside temperature sensor
44
Short circuit or open circuit of inside air temperature sensor
52
Short circuit towards earth of evaporator temperature sensor
54
Short circuit or open circuit of evaporator temperature sensor
65
Air mixing gear motor failure
82
Short circuit towards earth of required temperature potentiometer
84
Short circuit or open circuit of required temperature potentiometer
92
Short circuit towards earth of ventilation control potentiometer
94
Short circuit or open circuit of ventilation control potentiometer
B2
Short circuit towards earth of air mixing potentiometer signal
B4
Short circuit or open circuit of air mixing potentiometer signal
D5
Fan electronic control module failure
E2
Short circuit towards earth of pin 9 of connector A of control unit for supplying potentiometers
E3
Short circuit towards positive of pin 9 of connector A of control unit for supplying potentiometers
F6
Supply voltage over maximum limit
F7
Supply voltage below minimum limit
Cli
⇒
54
Error
Figure 252
000279t
216
ELECTRIC/ELECTRONIC SYSTEM
D
AILY
Base - May 2004
The air bag is a passive safety device comprising one or two cushions which, in the event of a head-on crash, inflate automatically
setting themselves between the body of the occupants and the front structures of the cab.
The system is always integrated by seat belts with pretensioner, which are controlled by the air bag control unit, in the event
of head-on crashes.
The system does not cut in for front crashes at low speed, side crash, overturning or crashes from behind.
Inflation of the bags without the restraint of the belts compromises the safety of the driver and passengers.
The system components are connected to one another and with the rest of the electric system through a special harness, that
can be easily recognised as it has a yellow sheath which is connected to the cab/bonnet cable by a 6-cell connector.
AIR BAG SYSTEM COMPONENTS
A. Driver's air bag module - B. Passenger's air bag module - C. 38-pin diagnostic connector - D. Electronic control unit -
E. Air bag failure warning light on instrument cluster - F. Driver's reel with pretentioner - G. Centre reel with pretensioner
- H. Passenger's side reel with pretensioner.
A
B
D
H
G
F
C
E
9
22
29
35
38
36
30
23
17
10
4
1
3
16
The air bag is complementary to the use of the seat belts and not in replacement of them.
NOTE
Figure 253
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Operation
The air bag system consists of a cushion which inflates
instantly contained in a special recess in the centre of the
steering wheel for the driver and in the dashboard for the two
passengers.
In the event of a head-on crash a deceleration sensor inside
the air bag control unit activates the pretensioners and the
instantaneous inflating device of the cushion or cushions
which act as protective barrier between the body of the
occupants and the vehicle structure. Immediately afterwards
the driver's air bag and, if requested, the passenger's air bag
deflate.
Deployment of the air bag system produces heat and a small
amount of powder. This powder is not harmful and does not
cause fire. In addition the surface of the
deployed bags and the inside of the vehicle may be covered
with dust: this may irritate the skin and eyes. In the case of
exposure, wash with neutral soap and water.
Each time the system is activated, the control unit keeps the
failure warning light on the instrument cluster on and it will
be necessary to change the whole system (control unit, belts
and pretensioners, bags and harness).
The system does not require any maintenance or checks.
LOCATION OF AIR BAG SYSTEM COMPONENTS AND CABLE
A. 38-pin connector for diagnostics - B. Air bag failure warning light - C. Cock spring - D. Driver's air bag module -
E. Connection between cab/bonnet cable and air bag cable - F. Passenger's air bag module - G. Passenger's reel with
pretensioner - H. Centre reel with pretensioner - I. Air bag earth - J. electronic control unit - K. driver's reel with
pretensioner - L. relay/fuse holder support
B
C
D
E
F
A
L
K
J
I
H
G
Turning the ignition switch to MAR, the air bag failure
warning light turns on for four seconds as system
self-diagnostics takes place.
NOTE
Figure 254
8556
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