1999 RENAULT CLIO Air Bag And Seat Belts Workshop Manual

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AFTER REPAIR
ComputerDF001
present
or
memorised
NoneNOTES
Replace the air bag computer (refer to "Aid" section for this operation).
None
FAULT FINDING- INTERPRETATION OF FAULTS
WIRING
Air bags and seat belt pretensioners
88
FRONT
88-31

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AFTER REPAIR
Computer supply voltage
1.dEF : Too many micro-cuts
2.dEF : Feed voltage too low
3.dEF : Feed voltage too highDF002
present
NOTES
Erase the computer memory
For a micro-cut fault, check the computer supply lines :
- condition of the connections on the computer.
- condition of the computer earths (tracks 6 and 20 of the 30 track connector to front right hand pillar
earth).
- condition/ position of the fuse,.
- condition and tightness of the battery terminals.
NoneNOTES 1.dEF
Carry out the operations necessary to obtain the correct supply voltage for the computer:
9 volts ± 0.1 < correct voltage < 18 volts ± 0.1
- Check the battery charge.
- Check the charging circuit.
- Check the tightness and condition of the battery terminals.
- Check the computer earth.
NoneNOTES 2.dEF - 3.dEF
Use the B40 XRBAG adaptor for operations on the computer connector.
FAULT FINDING- INTERPRETATION OF FAULTS
WIRING
Air bags and seat belt pretensioners
88
FRONT
88-32

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Reconnect the computer and the air bag cushion ignition module, then switch on
the ignition. Erase the computer memory, then switch off the ignition. Carry out a
check again using the fault finding tool and, in the absence of a fault, unlock the
computer. Destroy the air bag if there has been a replacement (tool ELE. 1287).
AFTER REPAIR
Driver’s front air bag
CC : Short circuit
CO : Open circuit
CC.1 : Short circuit to 12 volts
CC.0 : Short circuit to earthDF003
present
NOTESNever carry out measurements on the triggering lines with equipment other than
the XRBAG.
NoneNOTES CO - CC
Lock the computer using the command on the fault finding tool.
Switch off the ignition and remove the 2 steering wheel boss mounting bolts.
Check that it is connected correctly.
Disconnect the steering wheel boss and attach a dummy ignition module to the ignition module
connector. Switch on the ignition and carry out a check using the fault finding tool.
Replace the air bag cushion if the fault has been memorised (fault no longer declared present).
The XRBAG must be used to measure resistance at point C2 of the driver’s air bag 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 B40 adaptor.
The XRBAG must be used to measure resistance on adaptor cable A .
If the value obtained is not correct,
check the connections on the 30 track connector (tracks 10 and 11)
and replace the wiring if necessary.
If there is no evidence of a fault after these checks have been carried out, check on the air bag computer
base for the 5 shunt opening pins for the 30 track connector.
Check the condition of the computer connections
Check the condition of the 30 track connector (locking system, ...).
With the ignition switched off, disconnect then reconnect the rotary switch connector under the steering
wheel.
Repair the connections if the fault has just been memorised (fault no longer declared present).
FAULT FINDING- INTERPRETATION OF FAULTS
WIRING
Air bags and seat belt pretensioners
88
FRONT
88-33

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Reconnect the computer and the air bag cushion ignition module, then switch on the
ignition. Erase the computer memory, then switch off the ignition. Carry out a check again
using the fault finding tool and, in the absence of a fault, unlock the computer. Destroy the
air bag if there has been a replacement (tool ELE. 1287).
AFTER REPAIR
DF003
present
CONT
NoneNOTES CC.1 - CC.0
Lock the computer using the command on the fault finding tool.
Switch off the ignition and remove the two steering wheel boss mounting bolts.
Check the condition of the trigger cable.
The XRBAG must be used for insulation measurement appropriate to the type of fault at point C2 of the
driver’s front air bag 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 B40 adaptor.
The XRBAG must be used for insulation measurement appropriate to the type of fault on adaptor cable
A .
If the value obtained is not correct, check the connections on the 30 track connector (tracks 10 and 11)
and replace the wiring if necessary
FAULT FINDING- INTERPRETATION OF FAULTS
WIRING
Air bags and seat belt pretensioners
88
FRONT
88-34

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1AB8651.0
Reconnect the computer and the passenger air bag ignition module, then switch
on the ignition. Erase the computer memory then switch off the ignition.Carry out
a check using the fault finding tool and, in the absence of a fault, unlock the
computer.Destroy the passenger air bag module if there has been a replacement
(tool Elé. 1287).
Passenger’s front air bag circuit
CC : Short circuit
CO : Open circuit
CC.1 : Short circuit to 12 volts
CC.0 : Short circuit to earthDF004
present
NOTESNever carry out measures on the triggering lines with equipment other than the
XRBAG.
NoneNOTES CO - CC
Lock the computer using the command on the fault finding tool.
Switch off the ignition, disconnect the computer connector and fit the 30 track B40 adaptor.
The XRBAG must be used to measure resistance on adaptor cable B .
Is the value obtained correct?
If the value obtained is correct at adaptor cable B, check on the air bag computer base
for the 5 shunt opening pins for the 30 track connector.
Check the condition of the computer connections.
Check the condition of the 30 track connector (locking system, connections, ...)YES
If the value obtained is not correct at adaptor cable B , check the connections on the
30 track connector (tracks 13 and 14).NO
If the value remains incorrect, switch off the ignition and remove the dashboard visor
to access the passenger air bag module wiring. Disconnect the passenger air bag
ignition module, connect a dummy ignition module to the ignition module connector,
then use the XRBAG to measure the resistance on adaptor cable B again.
If the value obtained is correct, change the passenger air bag module.
If the value obtained is still incorrect, replace the air bag wiring.
FAULT FINDING- INTERPRETATION OF FAULTS
WIRING
Air bags and seat belt pretensioners
88
FRONT
88-35

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NoneNOTES CC.1 - CC.0
Lock the computer using the command on the fault finding tool.
Switch off the ignition, disconnect the computer connector and fit the 30 track B40 adaptor.
The XRBAG must be used to measure insulation appropriate to the type of fault declared by the fault
finding tool on adaptor cable B .
Is the value obtained correct?
Check the condition of the connections on the 30 track connector (tracks 13 and 14).YES
Check the condition of the connections on the 30 track computer connector (tracks 13
and 14).NO
If the value remains incorrect, replace the air bag wiring.
DF004
present
CONT
AFTER REPAIR
Reconnect the computer and the passenger air bag ignition module, then switch
on the ignition. Erase the computer memory then switch off the ignition.Carry out
a check using the fault finding tool and, in the absence of a fault, unlock the
computer.Destroy the passenger air bag module if there has been a replacement
(tool Elé. 1287).
FAULT FINDING- INTERPRETATION OF FAULTS
WIRING
Air bags and seat belt pretensioners
88
FRONT
88-36

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AFTER REPAIR
Air bag fault warning light circuit
CC.1 : Short circuit to 12 volts
CO.0 : Open circuit or short circuit to earth
DF010
present
NOTESUse the XRBAG 30 track B40 adaptor for operations on the computer connector.
NoneNOTES CC.1
Ignition on, warning light extinguished
Lock the computer using the command on the fault finding tool.
Check the condition of the warning light bulb.
Ensure the insulation in relation to 12 volts of the connection between the warning light and track 7 of
the 30 track connector.
NoneNOTES CO.0
Lock the computer using the command on the fault finding tool.
Check the condition of the warning light bulb.
Ensure the continuity of the connection between the warning light and track 7 of the 30 track connector.
Ensure the presence of 12 volts on the warning light.
If the checks carried out have not enabled a fault to be found, disconnect the computer connector and fit
the XRBAG 30 track B40 adaptor.Use the XRBAG in its instrument panel warning light test mode with
grey adaptor cable 1 .
If the warning light can be illuminated by the XRBAG, replace the air bag computer (refer to the "Aid"
section for this operation ).
If the warning light can not be illuminated, repeat the checks described above.
Ignition on, warning light illuminated
Lock the computer using the command on the fault finding tool.
Disconnect the sir bag computer and check on the air bag computer base for the 5 shunt opening pins
for the connector. Ensure the insulation in relation to earth of the connection between the warning light
and track 7 of the 30 track connector.
Erase the computer memory and switch off the ignition.
Carry out a check using the fault finding tool and, in the absence of a fault,
unlock the computer.
FAULT FINDING- INTERPRETATION OF FAULTS
WIRING
Air bags and seat belt pretensioners
88
FRONT
88-37

Downloaded from www.Manualslib.com manuals search engine 1AB8651.0
Reconnect the computer and the pretensioner ignition module , switch the ignition on
again. Erase the computer memory, then switch off the ignition. Carry out a check using
the fault finding tool and, in the absence of a fault, unlock the computer. Destroy the
pretensioners if there has been a replacement (tool Elé. 1287).
AFTER REPAIR
Driver’s pretensioner circuit
CC : Short circuit
CO : Open circuit
CC.1 : Short circuit to 12 volts
CC.0 : Short circuit to earthDF029
present
NOTESNever carry out measures on the triggering lines with equipment other than the
XRBAG.
NoneNOTES CO - CC
Lock the computer using the command on the fault finding tool.
Switch off the ignition and check the ignition module for the driver’s pretensioner is correctly connected.
Disconnect the ignition module for the driver’s pretensioner and connect a dummy ignition module to
the ignition module connector.
Switch on the ignition and carry out a check using the fault finding tool.
Change the driver’s pretensioner if the fault has been memorised (fault no longer declared present).
Disconnect the computer connector and fit the 30 track B40 adaptor.
The XRBAG must be used to measure resistance on adaptor cable D. If the value obtained is not correct,
check the connections on the 30 track connector (tracks 1 and 2) and replace the wiring if necessary
If there is no evidence of a fault after these checks have been carried out, check on the air bag computer
base for the 5 shunt opening pins for the 30 track connector.
Check the condition of the computer connections.
Check the condition of the 30 track connector (locking system, ...).
The XRBAG must be used to measure resistance at point C1 (seat connector) on the driver’s pretensioner
line.
If the value obtained is not correct, replace the wiring between points C1 and C3 (seat wiring).
FAULT FINDING- INTERPRETATION OF FAULTS
WIRING
Air bags and seat belt pretensioners
88
FRONT
88-38