airbag RENAULT KANGOO 1997 KC / 1.G Foult Finding - Injection Workshop Manual

Renault 1997
77 11 194 235JULY 1997Edition Anglaise
"The repair methods given by the manufacturer in this document are based on the
technical specifications current when it was prepared.
The methods may be modified as a result of changes introduced by the
manufacturer in the production of the various component units and accessories
from which his vehicles are constructed."All copyrights reserved by Renault.
Copying or translating, in part or in full, of this document or use of the service part
reference numbering system is forbidden without the prior written authority of
Renault.
C
Fault finding
LUCAS DIESEL INJECTION
INJECTION
IMMOBILISER
AIRBAG - SEAT BELT PRETENSIONERS ELECTRONICALLY CONTROLLED HYDRAULIC
SYSTEMS
FC0A - FC0C - FC0D - FC0E - KC0A - KC0C - KC0D - KC0E

Contents
Page
Fault finding
BATTERIE PROJECTEURS
Introduction
XR25 fiche
Interpretation of XR25 bargraphs
Customer complaints (petrol
version)
Fault charts (petrol version)
Customer complaints (diesel
version)
Fault charts (diesel version)
Checking conformity
Aid82-1
82-2
82-4
82-14
82-15
82-25
82-26
82-34
82-39IMMOBILISER82
Introduction
Wiring
XR25 fiche
Interpretation of XR25 bargraphs
Checking conformity
Checking the pretensioners
Aid88-1
88-2
88-5
88-7
88-22
88-23
88-24
AIRBAG - PRETENSIONERS88

AIRBAG ANDPRETENSIONERS
FAULT FINDING
SUMMARY
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01
Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 02
XR25 fiche . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 05
Interpretation of XR25 bargraphs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 07
Checking conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Checking the pretensioners . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Aid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24Page

1EC761.0
AIRBAG - SEAT BELT PRETENSIONERS
Fault finding -Introduction
CONDITIONS FOR THE APPLICATION OF THE CHECKS DEFINED IN THIS FAULT FINDING
The checks defined in this fault finding should only be applied to a vehicle when the fault bargraph is
illuminated, indicating that the fault is present on the vehicle at the time of checking. Only a computer
fault will require replacement of the computer, whether the bargraph is permanently illuminated or
flashing .
If the fault is not present but simply memorised, the bargraph flashes and application of the checks
recommended in the fault finding section will not allow the origin of the fault to be found. In this case,
only a check of the wiring and the connection of the component in question must be carried out (it is
possible to test the wiring concerned in fault finding mode to try to obtain permanent illumination of the
bargraph ).
TOOLING REQUIRED FOR OPERATIONS ON THE AIRBAG AND SEAT BELT PRETENSIONER SYSTEMS :
- XR25 (with minimum XR25 cassette N° 16).
- XRBAG the updated N° 3 version (with the new measuring lead and its adaptors as well as the 30 track
adaptor for operations on the computer connector).
REMINDER:
When carrying out an operation on the airbag/seat belt pretensioner systems , it is essential to lock the
computer with the XR25 command G80* to avoid all risk of triggering at the wrong time (all firing lines
will be inhibited). This operating mode will be indicated by illumination of the warning light on the
instrument panel.
Never carry out any measuring operations on the airbag and pretensioners trigger lines with equipment
other than the XRBAG.
Before using a dummy ignition module, ensure that its resistance is between 1.8 and 2.5 ohms.
Only 30 track connector computers with airbag(s) function are able to be tested with the XR25.
Computers with the pretensioner function only must be checked with the XRBAG by following the checks
described in the fault finding section.
The ignition must be switched off, then on again to make the warning light extinguish following erasure
of the memory using the command G0**.
88
88-1

1EC761.0
AIRBAG - SEAT BELT PRETENSIONERS
Fault finding -Wiring
Fault finding - XRBAG fiche
Pretensioner only
88
DI8811.1
Correct insulation value: display≥ 100 h or 9999 flashing
PRETENSIONERS
Measuring point Correct Value
C0, C1 and C3 1.6 to 4.6 Ω
AIndependent unit
BDriver seat
CPassenger seat
DPretensioners
+ 12 V
Earth
H
88-2

1EC761.0
AIRBAG - SEAT BELT PRETENSIONERS
Fault finding -Wiring
Fault finding - XRBAG Fiche
Pretensioner and driver airbag
88
DI8812.3
Correct insulation value : display≥ 100 h or 9999 flashing
PRETENSIONERS
Measuring point Correct value
C0, C1 and C3 1.6 to 4.6 Ω
AIRBAG
Measuring point Correct value
C0, C2 and C4 2 to 9.4 Ω
CT Rotary switch
A1 +12 Volts
A3 Earth
A2 Warning light
B1
B2Diagnostic socket A Central unit
B Driver seat
C Passenger seat
D Pretensioners
E Driver’s airbag ignition module
88-3

1EC761.0
AIRBAG - SEAT BELT PRETENSIONERS
Fault finding -Wiring
Fault finding - XRBAG Fiche
Pretensioner , driver’s airbag and passenger’s airbag
88
DI8813.2
PRETENSIONERS
Measuring point Correct value
C0, C1 and C3 1.6 to 4.6 Ω
AIRBAG
Measuring point Correct value
Driver C0, C2 and C4 2 to 9.4 Ω
Passenger C0 and C4 1.6 to 4.6 Ω
CT Rotary switch
A1 +12 Volts
A3 Earth
A2 Warning light
B1
B2Diagnostic socket A Central unit
B Driver’s seat
C Passenger’s seat
D Pretensioners
E Driver’s airbag ignition module
G Passenger’s airbag ignition module
Correct insulation value : display≥ 100 h or 9999 flashing
88-4

1EC761.0
AIRBAG - SEAT BELT PRETENSIONERS
Fault finding - XR25 Fiche
PRESENTATION OF XR25 FICHE N° 49
88
FI21749
88-5

1EC761.0
AIRBAG - SEAT BELT PRETENSIONERS
Fault finding - XR25 fiche
MEANING OF BARGRAPHS
FAULT BARGRAPHS
(always on coloured background)
If illuminated, indicates a fault on the product tested. The associated text defines
the fault.
This bargraph could be :
- Illuminated : fault present.
- Flashing : fault memorised.
- Extinguished : fault absent or not found.
STATUS BARGRAPHS (always on a white background)
Bargraph always located on the top right hand side
If illuminated , indicates establishment of dialogue with the product computer.
If it remains extinguished :
- The code does not exist.
- There is a tool, computer or XR25 / computer connection fault.
The following bargraph representations indicate their initial status :
Initial status: (ignition on, engine stopped, no operator action)
Indefinite
illuminated when the operation or the condition specified on the
fiche is met.
Extinguished
Illuminated extinguished when the operation or the condition specified on the
fiche is no longer met.
ADDITIONAL SPECIFICATIONS
Certain bargraphs have a *. The command *.., when the bargraph is illuminated,
allows additional information on the type of fault or status to be displayed.
or
88
88-6

1EC761.0
AIRBAG - SEAT BELT PRETENSIONERS
Fault finding - Interpretation of XR25 bargraphs
Bargraph 1 right hand side extinguished Fiche n° 49
Code present1
The computers which only control the operation of the seat belt pretensioners do
not have XR25 fault finding (check to be carried out with XRBAG).
When communication is established, deal with any illuminated fault bargraphs.AFTER REPAIR NOTES
Check the presence and condition of the airbag fuse .
Check the condition of the computer connector and the condition of the connections.
Check that the computer is correctly fed :
- Disconnect the airbag computer and fit the 30 track adaptor of the XRBAG.
- Check and ensure the presence + after ignition feed between the terminals marked
Earth and +after ignition feed.
Check that the diagnostic socket is correctly fed :
-+ Before ignition feed on track 16.
-Earth on track 5.
Check the continuity and insulation of the lines of the diagnostic socket / airbag computer connection:
- Between the terminal marked L and track 15 of the diagnostic socket .
- Between the terminal marked K and track 7 of the diagnostic socket .
If dialogue is still not established after these various checks, replace the airbag computer (consult the
section on "Aid" for this operation).
Ensure that the XR25 is not the cause of the fault by trying to communicate with the computer on
another vehicle .
Check that the ISO selector is in position S8, that the latest XR25 cassette and the correct access code are
being used.
Check the battery voltage and carry out the operations necessary to obtain the correct voltage (10.5 volts
< U battery< 16 volts).
88
88-7