88C-21
MR-413-X44-88C000$539.mif
V3
88C
AIRBAGS AND PRETENSIONERS
Fault finding - Fault summary table
Tool faultAssociated
DTCDiagnostic tool title
DF0019080 Computer
DF0029042 Computer feed voltage
DF0039007 Driver's frontal airbag circuit
DF0049005 Passenger's front airbag circuit
DF0289041 Passenger airbag status warning light circuit
DF034907E Computer locked
DF0399035 Driver's side sensor circuit
DF0409036 Passenger's side sensor circuit
DF0609050 Multiplex network
DF068900C Passenger's chest front side airbag circuit
DF069900A Passenger side curtain airbag circuit
DF0709009 Driver's side curtain airbag circuit.
DF077900B Driver's front side chest airbag circuit
DF0919034 Airbag locking switch circuit
DF1659040 Airbag fault warning light circuit
DF1839012 Driver's side front buckle pretensioner circuit
DF1849013 Passenger side front buckle pretensioner circuit
DF193907C Passenger airbag locking status change.
DF194907F Computer to be replaced following impact
DF2329051 Driver's seat belt buckle sensor circuit
DF242907B Left-hand/right-hand drive configuration
DF2629050 Vehicle speed multiplex signal
DF2639050 No ABS/ESP multiplex signal
DF2649050 No instrument panel multiplex signal
MR-413-X44-88C000$539.mif
MRSZ AIRBAG
Vdiag: 04
88C-43
MR-413-X44-88C000$616.mif
V3
AIRBAGS AND PRETENSIONERS
Fault finding - Interpretation of faults
MRSZ AIRBAG
Vdiag: 04
88C
DF077
PRESENT
DRIVER'S CHEST-LEVEL FRONT SIDE AIRBAG CIRCUIT
CC : Short circuit
CO : Open circuit
CC.1 : Short circuit to 12 volts
CC.0 : Short circuit to earth
1.DEF: Configuration
2.DEF: Short circuit between trigger lines
NOTESIf 1.DEF, check and modify the computer configuration using the configuration reading
LC042 Driver's front side chest-level airbag, then adjust it if it is inconsistent using
the configuration CF223 Driver's front side chest-level airbag.
Priorities when dealing with a number of faults:
If DF077 is present with fault DF232 Driver's seat belt buckle sensor circuit and
DF183 Driver's front buckle pretensioner circuit, start fault finding by checking the
8-track R335 connector under the driver's seat.
Special notes:
Never carry out any measurements on the trigger lines using any tool other than the
XRBAG or CLIP diagnostic tool.
Use dummy module (part no. Elé. 1835 yellow) and the dummy module (part no.
Elé. 1837- 6).
IMPORTANT
Before disconnecting the airbag connector to fit a dummy module, always lock
the trigger lines using the diagnostic tool and command VP006 "Lock
computer".
Use the W iring Diagrams Technical Note, New TWINGO.
Lock the trigger lines using command VP006 Lock computer.
Switch off the ignition.
Check the condition of the 8-track R335 connector under the driver's seat (see Wiring Diagram Technical Note,
New Twingo).
If the connector is faulty and there is a repair method (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Position the dummy module (part no. Elé. 1837- 6) on the 8-track R335 connector under the driver's seat.
Switch on the ignition again.
Read the fault in the AIRBAG / PRETENSIONER field.
AFTER REPAIRReconnect the computer and the ignition module for the driver's front side chest-level
airbag module
then switch on the ignition again. Clear the computer fault memory using command
RZ001 "Fault memory". Switch the ignition off and then on again.
Repeat the check using the diagnostic tool and, if there are no faults (ignore DF034
Computer locked), unlock the computer using command VP007 Unlock computer.
When replacing the airbag module, do not forget to reconnect the earth on the new
module.
ABGMRSZ_V04_DF077P
88C-44
MR-413-X44-88C000$616.mif
V3
AIRBAGS AND PRETENSIONERS
Fault finding - Interpretation of faults
MRSZ AIRBAG
Vdiag: 04
88C
DF077
CONTINUED
If the fault remains "Present":
Check the condition of the airbag computer connector, component code 756 (see Wiring Diagram Technical
Note, New Twingo, Component code 756 and MR 411, Mechanical, 88C, Airbag and pretensioners,
Airbag computer: Removal - Refitting).
If the connector is faulty and there is a repair method (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Faulty wiring between the airbag computer component code 756 and the 8-track R335 connector under the
driver's seat.
Check the insulation (+ 12 V, to earth and between the 2 lines) and the continuity of the following
connections:
–Connection code 60AR between component 756 and connector R335,
–Connection code 60AS between component 756 and connector R335.
If there is a repair method (see Technical Note 6015A, Repairing electrical wiring, Wiring: Precautions for
repair), repair the wiring, otherwise replace it.
If the fault has become "Stored":
Switch off the ignition.
Remove the driver's front side chest-level airbag component code 1103 (see MR 411, Mechanical, 88C, Airbag
and pretensioners, Front side chest-level airbag: Removal - Refitting).
.
Check the condition of the driver's front side chest-level airbag connector component code 1103 (see Wiring
Diagram Technical Note, New Twingo, Component code 1103).
If the connector is faulty and there is a repair method (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Position the dummy module (part no. Elé. 1835 yellow) on the driver's front side chest-level airbag connector
component code 1103.
Switch on the ignition again.
Read the fault in the AIRBAG / PRETENSIONER field.
AFTER REPAIRReconnect the computer and the ignition module for the driver's front side chest-level
airbag module
then switch on the ignition again. Clear the computer fault memory using command
RZ001 "Fault memory". Switch the ignition off and then on again.
Repeat the check using the diagnostic tool and, if there are no faults (ignore DF034
Computer locked), unlock the computer using command VP007 Unlock computer.
When replacing the airbag module, do not forget to reconnect the earth on the new
module.
88C-45
MR-413-X44-88C000$616.mif
V3
AIRBAGS AND PRETENSIONERS
Fault finding - Interpretation of faults
MRSZ AIRBAG
Vdiag: 04
88C
DF077
CONTINUED
If the fault remains "Present":
Faulty wiring between the driver's front side chest-level airbag component code 1103 and the 8-track R335
connector under the driver's seat.*
Check the insulation (+ 12 V to earth and between the 2 lines) and the continuity of the following
connections:
–Connection code 60AR between component 1103 and connector R335,
–Connection code 60AS between component 1103 and connector R335.
If there is a repair method (see Technical Note 6015A, Repairing electrical wiring, Wiring: Precautions for
repair), repair the wiring, otherwise replace it.
If the fault has become "Stored":
Replace the driver's front side chest-level airbag component code 1103 (see MR 411, Mechanical, 88C, Airbag
and pretensioners, Front side chest-level airbag: Removal - Refitting).
If the fault is still present, contact the Techline.
AFTER REPAIRReconnect the computer and the ignition module for the driver's front side chest-level
airbag module
then switch on the ignition again. Clear the computer fault memory using command
RZ001 "Fault memory". Switch the ignition off and then on again.
Repeat the check using the diagnostic tool and, if there are no faults (ignore DF034
Computer locked), unlock the computer using command VP007 Unlock computer.
When replacing the airbag module, do not forget to reconnect the earth on the new
module.
88C-48
MR-413-X44-88C000$616.mif
V3
AIRBAGS AND PRETENSIONERS
Fault finding - Interpretation of faults
MRSZ AIRBAG
Vdiag: 04
88C
DF183
PRESENT
DRIVER'S FRONT BUCKLE PRETENSIONER CIRCUIT
CC : Short circuit
CO : Open circuit
CC.1 : Short circuit to 12 volts
CC.0 : Short circuit to earth
1.DEF: Configuration
2.DEF: Short circuit between trigger lines
NOTESIf 1.DEF, check and modify the computer configuration using configuration reading
LC064 Driver's front buckle pretensioner, then modify it if it is inconsistent using
the configuration CF265 Driver's front buckle pretensioner.
Priorities when dealing with a number of faults:
If DF0183 is present with the fault DF232 Driver's seatbelt buckle sensor circuit
and DF077 Driver's front side chest-level airbag circuit, start fault finding by
checking the 8-track R335 connector under the driver's seat.
Special notes:
Never carry out any measurements on the trigger lines using any tool other than the
XRBAG or CLIP diagnostic tool.
Use dummy module (part no. Elé. 1835 yellow) and the dummy module (part no.
Elé. 1837- 6).
IMPORTANT
Before disconnecting the airbag connector to fit a dummy module, always lock
the trigger lines using the diagnostic tool and command VP006 Lock computer.
Use the W iring Diagrams Technical Note, New TWINGO.
Lock the trigger lines using command VP006 Lock computer.
Switch off the ignition.
Check the condition of the 8-track R335 connector under the driver's seat (see Wiring Diagram Technical Note,
New Twingo).
If the connector is faulty and there is a repair method (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Position the dummy module (part no. Elé. 1837- 6) on the 8-track R335 connector under the driver's seat.
Switch on the ignition again.
Read the fault in the AIRBAG / PRETENSIONER field.
AFTER REPAIRReconnect the computer and the locking switch, then switch on the ignition again.
Clear the computer fault memory using command RZ001 "Fault memory". Switch
the ignition of f and then on again.
Repeat a check using the diagnostic tool and, if there are no faults (do not take the
DF034 "Computer locked'' into account), unlock the computer using the command
VP007 ''Unlock computer''.
ABGMRSZ_V04_DF183P
88C-56
MR-413-X44-88C000$616.mif
V3
AIRBAGS AND PRETENSIONERS
Fault finding - Interpretation of faults
MRSZ AIRBAG
Vdiag: 04
88C
DF232
PRESENT
DRIVER'S SEAT BELT BUCKLE SENSOR CIRCUIT
CC.1 : Short circuit to + 12 V
1.DEF: Short circuit
NOTESIf 1.DEF, check and modify the computer configuration using the configuration reading
LC073 Driver's seat belt buckle sensor, then adjust it if it is inconsistent using
configuration CF273 Driver's seat belt buckle sensor.
Priorities when dealing with a number of faults:
If DF232 is present with faults DF077 Driver's front side chest-level airbag circuit
and DF183 Driver's front buckle pretensioner circuit, start fault finding by checking
the 8-track R335 connector under the driver's seat.
Use the W iring Diagrams Technical Note, New TWINGO.
Check the condition of the driver's seat belt buckle sensor connector component code 333 (see Wiring Diagram
Technical Note, New Twingo, Component code 333).
Check the condition of the airbag computer connector component code 756 (see Wiring Diagram Technical
Note, New Twingo, Component code 756).
If the connector is faulty and if there is a repair method (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Use the "Universal bornier" to check the insulation to + 12 V, to earth and between the 2 lines of the following
connections:
–Connection code 60DU between components 756 and 333,
–Connection code 60DV between components 756 and 333.
If there is a repair method (see Technical Note 6015A, Repairing electrical wiring, Wiring: Precautions for
repair), repair the wiring, otherwise replace it.
Use the "universal bornier" to check the continuity of the following connections:
–Connection code 60DU between components 756 and 333,
–Connection code 60DV between components 756 and 333.
If there is a repair method (see Technical Note 6015A, Repairing electrical wiring, Wiring: Precautions for
repair), repair the wiring, otherwise replace it.
If the fault is still present, replace the driver's seat belt buckle sensor (see MR 411, Mechanical, 88C, Airbag and
pretensioners, Front buckle pretensioner: Removal - Refitting).
AFTER REPAIRReconnect the computer and front seat belt inertia reels, then switch on the ignition
again.
Clear the computer fault memory using command RZ001 "Fault memory". Switch
the ignition of f and then on again.
Repeat a check using the diagnostic tool and, if there are no faults (do not take the
DF034 "Computer locked'' into account), unlock the computer using the command
VP007 ''Unlock computer''.
ABGMRSZ_V04_DF232P
88C-62
MR-413-X44-88C000$693.mif
V3
MRSZ AIRBAG
Vdiag: 04AIRBAGS AND PRETENSIONERS
Fault finding - Conformity check88C
FUNCTION: AIRBAG
SUB-FUNCTION: TRIGGERING
NOTESOnly check the conformity after a complete check with the diagnostic tool. The
values shown in this conformity check are given as a guide.
Application conditions: Engine stopped, ignition on.
FunctionParameter or Status
checked or ActionDisplay and Notes Fault finding
TriggeringPR013:Driver's front airbag
resistance
The resistance should be
between:
1.2 Ω < X < 5.8 Ω
This value may be 99.9 Ω if
the vehicle is not fitted with
the airbag in question
(see vehicle equipment).
These parameters indicate
the impedance in ohms on
trigger lines.In the event of a fault, apply the
interpretation of DF003 "Driver's front
airbag circuit".
PR014:Passenger front
airbag resistanceIn the event of a fault, apply the
interpretation of DF004 "Passenger
front airbag circuit".
PR011:Driver's side airbag
resistanceIn the event of a fault, apply the
interpretation of DF077 "Driver's front
chest-level side airbag circuit"
.
PR012:Passenger side
airbag resistanceIn the event of a fault, apply the
interpretation of DF068 "Passenger
front chest-level side airbag circuit"
.
PR017:Driver's side
curtain airbag
resistanceIn the event of a fault, apply the
interpretation of DF070 "Driver's side
curtain airbag circuit".
PR018:Passenger side
curtain airbag
resistanceIn the event of a fault, apply the
interpretation of DF069 "Passenger
side curtain airbag circuit".
PR015:Driver’s
pretensioner
resistanceIn the event of a fault, apply the
interpretation of DF183 "Driver's
buckle pretensioner circuit"
.
PR016:Passenger
pretensioner
resistanceIn the event of a fault, apply the
interpretation of DF184 "Passenger
buckle pretensioner circuit"
.