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

v0406.0
IMMOBILISER
Fault finding - Fault Chart (diesel version)82
AFTER REPAIRCarry out a conformity check.
Check that the immobiliser system is working correctly.
Erase fault memory G0**.
Fault Chart 5IMMOBILISER WARNING LIGHT REMAINS PERMANENTLY ILLUMINATED (even
when ignition turned off ) OR REMAINS PERMANENTLY EXTINGUISHED
Check that decoder unit programming has been properly carried out.NOTES
no Replace the fuse.
yes
Check the condition of the +before ignition
fuse.
Is the fuse in good condition?
no Repair the wiring.
yes
Check continuity and insulation from earth
of the wiring between track A5 of the 18
track decoder unit connector and the
instrument panel .
Is the wiring in good condition?
Carry out the following tests to determine the
faulty component :
- If the immobiliser warning light is
illuminated , disconnect the 18 track
decoder unit connector and check that
the immobiliser warning light
extinguishes,
- If the immobiliser warning light is
extinguished , connect track A5 of the
decoder unit connector to a vehicle earth
and check that the immobiliser warning
light illuminates.
Does the immobiliser warning light
illuminate correctly during the test?
no Replace the instrument panel .
Replace the decoder unit .
yes
yes
Check that bargraph 5LH is extinguished .
Is bargraph 5LH extinguished ?no
Refer to the chart for bargraph 5LH in the
section "Fault finding - Interpretation of
XR25 bargraphs "
82-32

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 - 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

1EC761.0
AIRBAG - SEAT BELT PRETENSIONERS
Fault finding - Interpretation of XR25 bargraphs
Bargraph 2 left hand side illuminated Fiche n° 49
Voltage supply
XR25 aid:*02 : 1.dEF : Voltage too low
2.dEF : Voltage too high
3.dEF : Too many micro-breaks
dEF : Cumulative between faults 1.dEF/2.dEF/3.dEF
2
Use the 30 track adaptor of the XRBAG to operate on the computer connector .
Erase the computer memory using the command G0**. AFTER REPAIR NOTES
Carry out the operations necessary to obtain the correct computer power supply :
10.5 volts ± 0.1 < correct voltage< 16 volts ± 0.1.
- Check the battery charge.
- Check the charge circuit.
- Check the tightness and condition of the battery terminals.
- Check the computer earth .
NoneNOTES I.dEF - 2.dEF
For a micro-break fault, check the computer power supply lines :
- Condition of the computer connections.
- Condition of computer earth (track 9 of the 30 track connector towards front right pillar earth).
- Condition / position of the fuse.
- Condition and tightening of battery terminals.
NoneNOTES 3.dEF
The dEF display on the kit indicates the minimum memorisation of 2 of the 3 faults declared by the
display
1.dEF, 2.dEF and 3.dEF (bargraph flashing ).
Operation:
- Check the battery charge.
- Check the charge circuit.
- Check the tightness and condition of the battery terminals.
- Condition of the computer connections.
- Check the computer earth .
- Condition / position of the fuse.
NoneNOTES dEF
88
88-9

1EC761.0
AIRBAG - SEAT BELT PRETENSIONERS
Fault finding - Interpretation of XR25 bargraphs
Bargraph 5 right hand side illuminated Fiche n° 49
Insulation of driver’s airbag line
XR25 aid :*25 : CC.1 : Short circuit at 12 volts
CC.0 : Short circuit to earth
5
Never carry out measurements on the trigger lines with equipment other than the
XRBAG.NOTES
Lock the computer using command G80* on the XR25.
Switch off the ignition and remove the two mounting bolts of the steering wheel cushion .
Check the condition of the trigger wire.
The XRBAG tool MUST be use for measuring insulation appropriate to the type of fault at point C2 of the
driver’s airbag circuit .
If the value obtained is not correct , replace the rotary switch under the steering wheel .
Reconnect the rotary switch under the steering wheel , disconnect the computer connector and fit the 30
track adaptor.
The XRBAG tool MUST be used for measuring insulation appropriate to the type of fault on the wire
marked B on the adaptor.
If the value obtained is not correct , check the 30 track connector connection (tracks 10 and 11) and
replace the wiring if necessary.
If the checks carried out have not proven the existence of a fault, replace the airbag computer (consult
the section "Aid" for this operation).
Reconnect the driver’s airbag ignition module and remount the steering wheel cushion.
Erase the computer memory using the command G0** then switch off the ignition.
Carry out another XR25 check and if there is no fault, unlock the computer using
command G81*.
Destroy the airbag cushion if it has been replaced (tool Elé. 1287).
AFTER REPAIR
88
88-11

1EC761.0
AIRBAG - SEAT BELT PRETENSIONERS
Fault finding - Interpretation of XR25 bargraphs
Bargraph 6 left hand side illuminated Fiche n° 49
Resistance on line 1 of the passenger’s airbag
XR25 aid :*06 : CC : Short circuit
CO : Open circuit
6
Never carry out measurements on the trigger lines with equipment other than the
XRBAG. On this vehicle "line 1" corresponds to the single trigger line of the
passenger’s airbag module .
NOTES
Lock the computer using command G80* on the XR25.
Switch off the ignition, disconnect the computer connector and fit the 30 track adaptor.
The XRBAG tool MUST be used for checking resistance on the wire marked C on the adaptor.
Is the value obtained correct?
Reconnect the computer and the ignition module of the passenger’s airbag module , then switch on the
ignition again.
Carry out an XR25 check.
If the kit still indicates the presence of a line 1 passenger’s airbag fault and and the checks carried out
show no evidence of a fault, replace the airbag computer (consult the section "Aid" for this operation).
If the value obtained is correct at wire C on the adaptor, check the condition of the
computer connection .YES
If the value obtained is not correct at wire C on the adaptor, check the 30 track
connector connection (tracks 6 and 7).NO
If the value remains incorrect, switch off the ignition and remove the dashboard to
gain access to the wiring of the passenger’s airbag module . Disconnect the ignition
module of the passenger’s airbag module, connect a dummy ignition module to the
ignition module , then use the XRBAG to measure the resistance on the wire marked C
on the adaptor.
If the value obtained is correct , replace the passenger’s airbag module .
If the value obtained is not correct, replace the airbag wiring.
Erase the computer memory using the command G0** then switch off the ignition.
Carry out another XR25 check and if there is no fault, unlock the computer using
command G81*.
Destroy the airbag cushion if it has been replaced (tool Elé. 1287).
AFTER REPAIR
88
88-12

1EC761.0
AIRBAG - SEAT BELT PRETENSIONERS
Fault finding - Interpretation of XR25 bargraphs
Erase the computer memory using the command G0** then switch off the ignition.
Carry out another XR25 check and if there is no fault, unlock the computer using
command G81*.
Destroy the airbag cushion if it has been replaced (tool Elé. 1287).
AFTER REPAIR
Bargraph 7 right hand side illuminated Fiche n° 49
Insulation of line 1 or 2 of the passenger’s airbag
XR25 aid :*27 : CC.1 : Short circuit at 12 volts
CC.0 : Short circuit to earth
7
Never carry out measurements on the trigger lines with equipment other than the
XRBAG. On this vehicle "line 1" corresponds to the single trigger line of the
passenger’s airbag module .
NOTES
Reconnect the computer and the ignition module of the passenger’s airbag module , then switch on the
ignition again.
Carry out an XR25 check.
If the kit still indicates the presence of a passenger’s airbag line fault and the checks carried out show no
evidence of a fault, replace the airbag computer (consult the section "Aid" for this operation).
It the value obtained is correct at wire C on the adaptor, check the condition of the
computer connection .YES
If the value obtained is not correct at the adaptor wire, check the 30 track connector
connection (tracks 6/7).NO
If the value remains incorrect , replace the airbag wiring.
Lock the computer using command G80* on the XR25.
Switch off the ignition, disconnect the computer connector and fit the 30 track adaptor.
The XRBAG tool MUST be use for measuring insulation appropriate to the type of fault on the wire
marked C on the adaptor.
Is the value obtained correct? ?
88
88-13

1EC761.0
AIRBAG - SEAT BELT PRETENSIONERS
Fault finding - Interpretation of XR25 bargraphs
Bargraph 9 right hand side illuminated Fiche n° 49
Insulation of pretensioner lines
XR25 aid :*29 : CC.1 : Short circuit at 12 volts
CC.0 : Short circuit to earth
9
Never carry out measurements on the trigger lines with equipment other than the
XRBAG.NOTES
Lock the computer using command G80* on the XR25.
Disconnect the ignition module of the driver’s pretensioner and connect a dummy ignition module to
the ignition module connectors.
Switch on the ignition and carry out an XR25 check.
If the fault has been memorised (fault no longer declared), check the condition of the seat wiring.
Replace the driver’s pretensioner if the wiring is not faulty.
Then carry out the same operation on the Passenger’s pretensioner (if not a driver’s side fault ).
The XRBAG tool MUST be used for measuring insulation appropriate to the type of fault at point C1 (seat
connector) of the driver’s pretensioner line.
If the value obtained is not correct , replace the wiring between points C1 and C3 (seat wiring).
Then carry out the same measurement on the passenger’s pretensioner line (if not a driver’s side fault ).
Disconnect the computer connector and fit the 30 track adaptor.
The XRBAG tool MUST be used for measuring insulation appropriate to the type of fault on the adaptor
wires marked D (Passenger ) and E (Driver ) .
If one of the values obtained is not correct, check the 30 track connector connection (tracks 3 / 4 for wire
D and 1/2 for wire E) and replace the wiring if necessary .
If the checks carried out have not proven the existence of a fault, replace the airbag computer (consult
the section "Aid" for this operation).
Reconnect the ignition modules of the seat belt pretensioners.
Erase the computer memory using the command G0** then switch off the ignition.
Carry out another XR25 check and if there is no fault, unlock the computer using
command G81*.
Destroy the pretensioner(s) if it has been replaced (tool Elé. 1287).
AFTER REPAIR
88
88-16

1EC761.0
AIRBAG - SEAT BELT PRETENSIONERS
Fault finding - Interpretation of XR25 bargraphs
Bargraph 10 left hand side illuminated Fiche n° 49
Short circuit or insulation from 12 volts on the warning light line 10
Use the 30 track XRBAG adaptor to operate on the computer connector .NOTES
If the checks carried out have not proven the existence of a fault, replace the airbag computer (consult
the section "Aid" for this operation).
Lock the computer using command G80* on the XR25.
Check the condition of the warning light bulb .
Ensure insulation
from 12 volts of the connection between the warning light and track 8 of the 30 track
connector.
Erase the computer memory using the command G0** then switch off the ignition
Carry out another XR25 check and if there is no fault, unlock the computer using
command G81*.AFTER REPAIR
88
88-17