2009 RENAULT TWINGO diagram

8Electrical equipment
V3 MR-413-X44-88C000$TOC.mif
V3
88C
"The repair procedures given by the manufacturer in this document are based on the
technical specifications current when it was prepared.
The procedures 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."
V3
All rights reserved by Renault s.a.s.
Edition Anglaise
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 s.a.s.
© Renault s.a.s. 2009
AIRBAGS AND PRETENSIONERS
MRSZ AIRBAG
Vdiag: 04
Fault finding - Introduction 88C - 2
Fault finding - List and location of components 88C - 7
Fault finding - Operating diagram 88C - 14
Fault finding - Function 88C - 16
Fault finding - Replacement of components 88C - 18
Fault finding - Configurations and programming 88C - 19
Fault finding - Fault summary table 88C - 21
Fault finding - Interpretation of faults 88C - 22
Fault finding - Conformity check 88C - 61
Fault finding - List of Statuses and parameters 88C - 64
Fault finding - Customer complaints 88C - 65
Fault finding - Fault Finding Chart 88C - 66

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88C
AIRBAGS AND PRETENSIONERS
Fault finding - Introduction
1. SCOPE OF THIS DOCUMENT
This document presents the fault finding procedure applicable to all computers with the following specifications:
2. PREREQUISITES FOR FAULT FINDING
Documentation type
Fault finding procedures (this manual):
–Assisted fault finding (integrated into the diagnostic tool), Dialogys.
Wiring Diagrams:
–Visu-Schéma (CD-ROM), paper.
Type of diagnostic tools
–CLIP
Special tooling required
3. REMINDERS
To run fault finding on the vehicle computers, switch on the ignition. Proceed as follows:
–turn the ignition key to APC,
–connect the diagnostic tool and perform the required operations.
To cut off the + after ignition feed, proceed as follows:
–disconnect the diagnostic tool,
–turn the ignition key to OFF,
–verify that the forced + after ignition feed has been switched off by checking that the computer warning lights on
the control panel have gone out. Vehicle (s): New TWINGO
Function concerned: AIRBAGName of computer: TEMIC MRSZ
Vdiag No.: 04
Special tooling required
Multimeter
–Dummy module (Part no. Elé. 1835 yellow)
–Dummy module (Part no. Elé. 1837 - 2)
–Dummy module (Part no. Elé. 1837 - 5)
–Dummy module (Part no. Elé. 1837 - 6)
ABGMRSZ_V04_PRELI
MR-413-X44-88C000$077.mif
MRSZ AIRBAG
Vdiag: 04

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88C
AIRBAGS AND PRETENSIONERS
Fault finding - Operating diagram
SYSTEM CONFIGURATION SHEET (FRONT section of the vehicle)
To rear wiring
Correct insulation value: display ≥ 100 h or 9999 flashing. A
B
C
D
E
GCentral unit
Driver’s seat
Front passenger seat (identical to the driver's
seat)
Front chest level side airbag ignition module
Driver's frontal airbag ignition module
Passenger's frontal airbag ignition moduleH
CT
PFront buckle pretensioner
Rotary switch + 12 V/Earth
Warning light / Diagnostic lines
Impact sensors/Impact signal
Passenger airbag locking switch/...
FRONT AIRBAGS
Measuring point Correct value
Driver C0, C2 and C4 1.2 to 5.8 Ω
Passenger C0 and C4 1.2 to 5.8 Ω
SIDE AIRBAGS AND PRETENSIONERS
Measuring point Correct value
C0, C1 and C3 1.2 to 5.8 Ω
MR-413-X44-88C000$231.mif
MRSZ AIRBAG
Vdiag: 04

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V3
MRSZ AIRBAG
Vdiag: 04AIRBAGS AND PRETENSIONERS
Fault finding - Operating diagram88C
SYSTEM CONFIGURATION SHEET (REAR section of the vehicle)
Correct insulation value: display ≥ 100 h or 9999 flashing. ACentral unit
K/LCurtain airbag ignition modules
M/NRear pyrotechnic seat belt retractors
SIDE AIRBAGS AND SEAT BELT RETRACTORS- PRETENSIONERS
Measuring point Correct value
C0, C1 and C3 1.2 to 5.8 Ω

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AIRBAGS AND PRETENSIONERS
Fault finding - Interpretation of faults
MRSZ AIRBAG
Vdiag: 04
88C
DF002
PRESENT
COMPUTER SUPPLY VOLTAGE
1.DEF: Supply voltage too high
2.DEF: Supply voltage too low
NOTESUse the Wiring Diagrams Technical Note, New TWINGO.
Check the condition of the airbag computer connector component code 756 (see Wiring Diagram Technical
Note, New Twingo, Component code 756 and Technical Note 6015A, Repairing electrical wiring, Wiring:
Precautions for repair).
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.
Check fuse F7 15 A on the passenger compartment fuse box, component code 1016.
With the ignition on, check for + 12 V on connection AP25 of the airbag computer, component code 756:
10.5 V ± 0.1 < voltage OK < 16 V ± 0.1.
If there is a repair method (see Technical Note 6015A, Repairing electrical wiring, Wiring: Precautions for
repair), repair the wiring, otherwise replace it.
–Check the battery charge.
–Check the charge circuit (see 80A, Battery).
–Check the tightness and the condition of the battery terminals.
–Check the computer earth connection NAP.
Use the universal bornier to check the insulation and continuity of the following connections:
–Connection code AP25 between components 756 and 1016,
–Connection code NAP on component 756.
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, contact the Techline.
AFTER REPAIRClear the computer fault memory. Switch off the ignition.
Carry out the check again using the diagnostic tool and, if there is no fault, unlock the
computer.
ABGMRSZ_V04_DF002P

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AIRBAGS AND PRETENSIONERS
Fault finding - Interpretation of faults
MRSZ AIRBAG
Vdiag: 04
88C
DF003
PRESENT
DRIVER'S FRONT AIRBAG CIRCUIT
CO : Open circuit
CC : Short circuit
CC.0 : Short circuit to earth
CC.1 : Short circuit to 12 volts
1.DEF : Configuration
2.DEF : Short circuit between trigger lines
NOTESIf 1.DEF, check the computer configuration using configuration reading LC028
Driver's front airbag, then modify it if it is inconsistent using the configuration CF209
Driver's front airbag.
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".
Special note:
Use dummy module (part no. Elé. 1837- 5) and dummy module (part no. Elé. 1835
yellow).
Use the W iring Diagrams Technical Note, New TWINGO.
Lock the trigger lines using command VP006 Lock computer.
Switch off the ignition.
Remove the driver's airbag, component code 899 (see MR 411, Mechanical, 88C, Airbag and pretensioners,
Driver's front airbag: Removal - Refitting).
Check the condition of the driver's front airbag connector (see Wiring Diagram Technical Note, New Twingo,
Component code 899 and Technical Note 6015A, Repairing electrical wiring, Wiring: Precautions for repair).
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.
Fit the dummy module (part no. Elé. 1835 yellow) on the driver's front airbag connector, component code 899.
Switch on the ignition again.
Read the fault in the AIRBAG / PRETENSIONER field.
If the fault has become "Stored":
Replace the driver's front airbag component code 899.
If the fault remains "Present":
Switch off the ignition.
Check the condition of the rotary switch connector, component code 689 (see Wiring Diagram Technical Note,
New Twingo, Component code 689, Technical Note 6015A, Repairing electrical wiring, Wiring: Precautions for
repair and MR 411, Mechanical, 84A, Controls-Signals, Steering column switch assembly: 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.
Position the dummy module (part no. Elé. 1837 - 5) on the rotary switch connector component code 689.
Switch on the ignition again.
Read the fault in the AIRBAG / PRETENSIONER field.
AFTER REPAIRClear the computer fault memory using command RZ001 "Fault memory". Switch
the ignition of f 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.
ABGMRSZ_V04_DF003P

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AIRBAGS AND PRETENSIONERS
Fault finding - Interpretation of faults
MRSZ AIRBAG
Vdiag: 04
88C
DF003
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, see MR 411, Mechanical, 88C, Airbag and pretensioners, Airbag
computer: Removal - Refitting and Technical Note 6015A, Repairing electrical wiring, Wiring: Precautions
for repair).
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 rotary switch component code 689.
Check the insulation (+ 12 V, to earth and between the 2 lines) and the continuity of the following
connections:
–Connection code 60AM between components 756 and 689,
–Connection code 60AN between components 756 and 689.
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 rotary switch component code 689 (see MR 411, Mechanical, 84A, Controls - Signals, Steering
column switch assembly: Removal - Refitting).
If the fault is still present, contact the Techline.
AFTER REPAIRClear the computer fault memory using command RZ001 "Fault memory". Switch
the ignition of f 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.

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AIRBAGS AND PRETENSIONERS
Fault finding - Interpretation of faults
MRSZ AIRBAG
Vdiag: 04
88C
DF004
PRESENT
PASSENGER FRONT AIRBAG CIRCUIT
CO : Open circuit
CC : Short circuit
CC.0 : Short circuit to earth
CC.1 : Short circuit to 12 volts
1.DEF : Configuration
2.DEF : Short circuit between trigger lines
NOTESIf 1.DEF, check the computer configuration using the configuration reading LC027
Passenger's front airbag, then modify it if it is inconsistent using the configuration
CF210 Driver's front airbag.
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".
Special note:
Use dummy module (Part no. Elé.1835 yellow).
Use the W iring Diagrams Technical Note, New TWINGO.
Lock the trigger lines using the command VP006 Lock computer.
Switch off the ignition.
Remove the passenger's airbag, component code 861 (see MR 411, Mechanical, 88C, Airbag and
pretensioners, Passenger's front airbag: Removal - Refitting).
Check the condition of the passenger's front airbag connector, component code 861 (see Wiring Diagram
Technical Note, New Twingo, Component code 861 and Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair).
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 passenger's front airbag connector component
code 861.
Switch on the ignition again.
Read the fault in the AIRBAG / PRETENSIONER field.
AFTER REPAIRClear 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.
ABGMRSZ_V04_DF004P