Dacia Solenza (engine E7J). Service manual — part 169
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REMARK : By means of the CLIP
tester it is possible the visualization of
the releasing of the driver’s airbag.
If the airbag has been tripped:
- replace the releasing elements and the
defective ones;
- check the failures absence by means
of the CLIP tester;
- check the necessity of UCE airbag
replacement.
When everything is correct, unblock the
UCE airbag and the system is again
operational (the airbag indicator is getting off).
If the CLIP tester is stipulating the
replacement of UCE airbag, that means:
- UCE airbag has released 4 times the
airbag.
- An internal failure of UCE airbag.
UCE AIRBAG CONNECTOR
Pin
Denomination
1
Free
2
Free
3
Free
4
Free
5
+ after contact
6
Mass
7
Airbag indicator
8
Free
9
“K” diagnostic line
10
+ driver airbag signal
11
– driver airbag signal
12
Free
13
Free
14
Free
15
Free
16 ,17
Shunt
18 ,19
Shunt
20
Mass
21 ,22
Shunt
23
“L” diagnostic line
24
Free
25 ,26
Shunt
27
Free
28 ,29
Shunt
30
Free
REMARK:
UCE airbag connector has as
par ticularity the shortcircuit setting of
different releasing lines when this one is
disconnected. The shunts placed in front of
each releasin g line are avoiding the
undesirable releasing of these systems (by
antenna effect, for instance).
Airbag – Electronic control unit
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CHECKING OF THE AIRBAG SYSTEM CIRCUITS.
The transmitting wiring of the airbag-releasing signal is integrated in the front wiring.
In case of an abnormality noticed on the transmitting wiring of the airbag-starting signal, this
is to be replaced and not repaired.
The security device can not tolerate any classical reparation intervention of this wiring or of
the connectors.
ATTENTION !
When repositioning the new wiring, ensure that this one is not in contact with sharpen
edges which may destroy it.
REMARK:
The airbag electric wires test is to be performed as follows:
- Set the contact off
- Connect the CLIP tester to the vehicle
- Set the contact on
- Block UCE airbag
- Set the contact off
- Disconnect the battery (-) terminal
- Dismount the central console
- Dismount the airbag attachment screws.
- Disconnect the airbag connector
- Connect the inert igniter.
- Disconnect the UCE airbag connector and connect the 30 pins adapter connector instead
of UCE airbag and the 30 pins adapter exit cables are to be connected, one by one to the CLIP
Airbag – Electronic control unit
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tester.
The driver’s airbag is located in the steering
wheel pillow.
The driver’s airbag is composed of:
- an inflatable pillow
- a pyrotechnic gas generator with an
igniter.
These elements can not be separated.
REMARK:
When the airbag is released, the
steering wheel cover is broken.
The airbag indicator from the instrument
panel is controlling the good operation of the
driver’s airbag.
REMARK:
The system is operational only after
setting the contact on.
A vehicle equipped with driver’s airbag is
to be identified by the inscription “Airbag”
from the steering wheel central pillow.
DISMOUNTING
ATTENTION!
It is forbidden the pyrotechnic system
handling near heating sources or open
fire because of risk of the s ystem
undesirable releasing.
OBSERVATION
Before dismounting the airbag pillow,
bloc the UCE airbag by means of the CLIP
tester (see “Blocking UCE airbag”. When
this function is active, all transmitting lines
of the releasing signal are inhibited. The
airbag indicator from the instrument panel
is on.
IMPORTANT:
Before dismounting the steering wheel, it
is necessary the disconnecting of the airbag
connector (1).
OBSERVATION
The driver’s airbag pillow is provided with
a connector that is short-circuiting after
disconne cting th e wir ing c onnector,
avoiding in this way all u ndesi rable
releasing.
REMARK:
After releasing, UCE airbag is
automatically blocking all releasing lines.
DISMOUNTING
OF THE DRIVER’S AIRBAG
Set the contact off
Dismount the two attachment screws located
under steering wheel, attaching the airbag pillow.
Disconnect the airbag connector.
IMPORTANT:
After airbag pillow replacement
considered discard but not tripped, its
destroying procedure is to be imposed (see
chapter “Destroying procedure”).
REMOUNTING
Check if the airbag indicator from the
instrument panel is on with the contact set on.
Connect the inert igniter to the airbag
connector (to wiring) and check if the airbag
indicator is off.
Set the contact off, connect the airbag
connector instead of the inert igniter (check the
correct connection of the connector).
Driver’s airbag
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Mount the two attachment screws (required tightening moment: 0.65 daNm) located under
the steering wheel, attaching the airbag pillow.
IMPORTANT
After remounting, check the system operation, by means of the CLIP tester. If
everything is correct, unblock UCE airbag (see “Unblocking UCE airbag”). If it is not
correct, see chapter “Diagnostic. Check if the airbag indicator is lighted when setting
contact on, it is remaining lighted for 3 seconds, then it is turning off and is remaining
off.
OBSERVATION:
UCE airbag may accept up to 4 airbag releasing (some elements are loosing their
nominal characteristics). It is not necessary the systematic replacement after each airbag
releasing.
REMARK :
The driver airbag – new item number- is provided with a self-adhesive protective foil
stacked over the airbag connector. Unstacking of the protection foil is to be done
ONLY in the moment of mounting.
Driver’s airbag
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