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Reconnect the computer and the pretensioner ignition module , then 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
pretensioner if there has been a replacement (tool Ele. 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 measuring operations on the trigger lines with equipment other
than the XRBAG.
NoneNOTES CO - CC
Lock the computer using the fault finding tool command.
Switch off the ignition and check whether 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 50 track B50 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 50 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 7 shunt opening pins for the 50 track connector.
Check the condition of the computer connections
Check the condition of the 50 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).
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AFTER REPAIR
NoneNOTES CC.1 - CC.0
DF029
present
CONT
Reconnect the computer and the pretensioner ignition module , then 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
pretensioner if there has been a replacement (tool Ele. 1287).
Lock the computer using the fault finding tool command.
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.
If the fault is memorised (fault no longer declared present), check the condition of the seat wiring.
Replace the driver’s pretensioner if the wiring is not faulty.
Disconnect the computer connector and fit the 50 track B50 adaptor.
The XRBAG must be used for insulation measurements appropriate to the type of fault on adaptor cable
A
If the value obtained is not correct, check the connections on the 50 track connector (tracks 1 and 2) and
replace the wiring if necessary
If the checks carried out do not indicate the presence of a fault on the driver’s pretensioner circuit, check
on the air bag computer base for the 7 shunt opening pins for the 50 track connector.
Check the condition of the computer connections
Check the condition of the 50 track connector (locking system).
The XRBAG must be used for insulation measurements appropriate to the type of fault on point C1 (seat
connector) on the driver’s pretensioner line.
If the value is not correct, replace the wiring betweenpoints C1 and C3 (seat wiring).
FAULT FINDING - INTERPRETATION OF FAULTS
WIRING
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AFTER REPAIR
Reconnect the computer and the pretensioner ignition module , then 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
pretensioner if there has been a replacement (tool Ele. 1287).
Passenger’s pretensioner circuit
CC : Short circuit
CO : Open circuit
CC.1 : Short circuit to 12 volts
CC.0 : Short circuit to earthDF030
present
NOTESNever carry out measuring operations on the trigger lines with equipment other
than the XRBAG.
NoneNOTES CO - CC
Lock the computer using the fault finding tool command.
Switch off the ignition and check that the passenger’s pretensioner ignition module is connected
correctly.
Disconnect the ignition module for the passenger’s pretensioner and connect a dummy ignition module
to the ignition module connector.
Switch on the ignition and carry out check using the fault finding tool.
Replace the passenger’s pretensioner if the fault is memorised (no longer declared as present).
Disconnect the computer connector and fit the 50 track B50 adaptor.
The XRBAG must be used to measure resistance on adaptor cable B . If the value obtained is not correct,
check the connections on the 50 track connector (tracks 3 and 4) 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 7 shunt opening pins for the 50 track connector.
Check the condition of the computer connections
Check the condition of the 50 track connector (locking system).
The XRBAG must be used to measure resistance on point C1 (seat connector) of the passenger’s
pretensioner line.
If the value is not correct, replace the wiring betweenpoints C1 and C3 (seat wiring).
FAULT FINDING - INTERPRETATION OF FAULTS
WIRING
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AFTER REPAIR
NoneNOTES CC.1 - CC.0
DF030
present
CONT
Lock the computer using the fault finding tool command.
Disconnect the ignition module for the passenger’s pretensioner and connect a dummy ignition module
to the ignition module connector.
Switch on the ignition and carry out check using the fault finding tool.
If the fault is memorised (no longer declared as present), check the condition of the seat wiring.
Replace the passenger pretensioner if the wiring is not faulty.
Disconnect the computer connector and fit the 50 track B50 adaptor.
The XRBAG must be used for insulation measurements appropriate to the type of fault onadaptor cable
B . If the value is not correct, check the connections on the 50 track connector (tracks 3 and 4) and replace
the wiring if necessary
If the checks carried out do not indicate the presence of a fault on the passenger’s pretensioner circuit,
check on the air bag computer base for the 7 shunt opening pins for the 50 track connector.
Check the condition of the computer connections
Check the condition of the 50 track connector (locking system).
The XRBAG must be used to measure the insulation appropriate to the type of fault atpoint C1 (seat
connector) of the passenger’s pretensioner line.
If the value is not correct, replace the wiring betweenpoints C1 and C3 (seat wiring).
Reconnect the computer and the pretensioner ignition module , then 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
pretensioner if there has been a replacement (tool Ele. 1287).
FAULT FINDING - INTERPRETATION OF FAULTS
WIRING
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AFTER REPAIR
Side sensor programming not carried out
DF033
present
None.NOTES
The absence of this fault corresponds to the absence of programming for the side sensors identification
by the air bag computer (this identification enables the computer to check that the side sensors are the
correct ones for the vehicle).
This bargraph is normally illuminated when the computer is new (it is sold without identification).
Carry out the identification programming for the side sensors using the "Side sensor programming"
command on the fault finding tool.
Erase the computer memory then switch off the ignition
Carry out a check again using the fault finding tool
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AFTER REPAIR
Computer locked
DF034
present
None.NOTES
This fault enables the locked condition of the computer to be visualised.
When the fault is present, all the triggering lines are inhibited, which prevents the air bags and seat belt
pretensioners from being triggered.
This fault is normally present in 2 circumstances :
- the computer is new (it is sold locked).
- the computer locking command on the fault finding tool has been used during an operation on the
vehicle.
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.
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AFTER REPAIR
Erasing locked memory faults
DF035
present
None.NOTES
This fault is normally present following an impact in the presence of memorised faults
This locking prevents accidental erasing of the registered contexts of impacts which lead to the systems
being triggered (the contexts are erased using the erasing command for the fault memory).
These contexts will be used later to simplify the repair of vehicles involved in accidents and also for
examination needs .
Erase the computer memory then switch off the ignition
Carry out a check again using the fault finding tool
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AFTER REPAIR
Disrupted driver’s side sensor signal (or in open circuit)
DF036
present
None.NOTES
Lock the computer using the command on the fault finding tool.
Check that the driver’s side sensor is connected correctly and check its connection.
Check the condition of the connections on the computer (tracks 20 and 21).
Check the condition of the 50 track connector (locking system, connector,...).
Replace the wiring if the fault persists.
Reconnect the computer and the driver’s side sensor 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.
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