airbag RENAULT TWINGO 2009 2.G Electrical Equipment - Petrol Injection Workshop Manual

17B-10V7 MR-413-X44-17B000$030.mif
17B
SIM 32 Injection
Program no.: D3
Vdiag No.: 44, 4C, 50
and 54
1. SYSTEM OPERATION
Composition
The injection system consists of the:
–accelerator potentiometer,
–TDC sensor,
–atmospheric pressure sensor,
–air temperature sensor,
–coolant temperature sensor,
–refrigerant pressure sensor,
–upstream oxygen sensor,
–downstream oxygen sensor,
–cruise control switch (fitted according to the vehicle equipment level),
–cruise control on/off switch (fitted according to the vehicle equipment level),
–brake light switch,
–clutch pedal switch,
–fuel vapour absorber,
–injection computer,
–motorised throttle valve,
–four injectors,
–pinking sensor,
–4 injectors,
–ignition coil,
–pinking sensor.
Additional components on D4F 764:
–camshaft dephaser,
–camshaft position sensor,
–electrically controlled coolant thermostat.
Additional components on D4F 784:
–Turbocharging system,
–turbocharger,
–Oil vapour rebreathing circuit,
–OCS - Configured oil service interval.
Computer
SIEMENSSIM32type112-track co mputer controlling the injection a nd ignition. M ultipoint injection in se quential mode.
Connections with the other computers, known as "Intersystem connections":
–ESP (fitted according to the vehicle equipment level).
–Passenger Compartment Control Unit (UCH).
–Gearbox Computer: sequential gearbox or automatic gearbox (if fitted to the vehicle).
–Instrument panel.
–Radio navigation (if fitted to the vehicle).
–Airbag.
–ABS (if fitted to the vehicle).
–Protection and Switching Unit (UPC).
–Air conditioning.
PETROL INJECTION
Fault finding – System operation

17B-21V7 MR-413-X44-17B000$050.mif
17B
SIM 32 Injection
Program no.: D3
Vdiag No.: 44, 4C, 50
and 54
RV* / LV*: Cruise control/Speed Limiter1 - Injection computer 16 - Upstream sensor signal
2 - RV* / LV* buttons 17 - Ignition command
3 - Multiplex network 18 - Bleed canister command
4 - Turbocharger 19 - Fuel pump command
5 - Motorised throttle 20 - Downstream sensor signal
6 - Manifold pressure 21 - ESP computer
7 - Injector command 22 - Rev counter computer
8 - Clutch Pedal 23 - ABS computer
9 - Brake pedal 24 - Instrument panel computer
10 - Accelerator pedal 25 - Sequential gearbox computer
11 - Refrigerant fluid pressure 26 - AIRBAG computer
12 - Air conditioning compressor command 27 - Vehicle speed sensor computer
13 - Engine cooling fan assembly command 28 - Air conditioning computer
14 - Flywheel signal 29 - UCH computer
15 - Pinking signal 30 – Turbocharging pressure
PETROL INJECTION
Fault finding – Functional diagram

17B-22V7 MR-413-X44-17B000$060.mif
17B
SIM 32 Injection
Program no.: D3
Vdiag No.: 44, 4C, 50
and 54
SYSTEM OPERATION
Composition
The injection system consists of the:
–accelerator potentiometer,
–TDC sensor,
–air temperature sensor,
–inlet manifold pressure sensor,
–+ turbocharging pressure sensor,
–coolant temperature sensor,
–refrigerant pressure sensor,
–upstream oxygen sensor,
–downstream oxygen sensor,
–cruise control switch (fitted according to the vehicle equipment level),
–cruise control on/off switch (fitted according to the vehicle equipment level),
–brake light switch,
–clutch pedal switch,
–fuel vapour absorber,
–injection computer,
–motorised throttle valve,
–four injectors,
–ignition coil,
–pinking sensor.
Additional components on D4FT 780:
–Turbocharging
–Oil vapour rebreathing circuit de-icing system
–OCS - Customised oil change interval
Computer
SIEMENS type "SIM32" 112-track computer controlling the injection and the ignition. Multipoint injection in
sequential mode.
Connections with the other computers, known as "Intersystem connections":
–ESP (fitted depending on vehicle equipment level).
–Passenger Compartment Control Unit (UCH).
–Gearbox Computer: BVR sequential gearbox (if fitted to the vehicle).
–Instrument panel.
–Airbag.
–ABS (if fitted to the vehicle).
–Rev counter instrument.
–Air conditioning.
PETROL INJECTION
Fault finding – Features

17B-115V7 MR-413-X44-17B000$132.mif
PETROL INJECTION
Fault finding – Interpretation of faults17B
SIM 32 Injection
Program no.: D3
Vdiag No.: 44, 4C, 50
and 54
*RV/LV: Cruise control/speed limiter function
DF106
PRESENT
OR
STOREDCRUISE CONTROL - SPEED LIMITER SELECTOR SWITCH
ON
STEERING WHEEL
1. DEF: No signal
IMPORTANT:
To remove or check the cruise control - speed limiter control switches, the airbag must be removed
(see MR 392 (Clio III), MR 385 (MODUS), or MR 411 (New Twingo), or MR 442 (E33), Mechanical, 88C,
Airbag and pretensioners, Driver's frontal airbag, Removal - Refitting).
NOTESConditions for applying the fault finding procedure to stored faults
The fault is present after a road test using the cruise control then the speed
limiter function.
Use the Wiring Diagrams Technical Note for NEW TWINGO, E33, CLIO III,
or MODUS.
Check the cleanliness and condition of the incrementing switches on the steering wheel and their connections.
If the connectors are faulty and if there is a repair procedure (see Technical Note 6015A, Repairing electrical
wiring, Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Disconnect the battery.
Disconnect the injection computer.
Check the cleanliness and condition of the injection computer connections, component code 120.
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.
Using the Universal bornier, check for insulation and continuity on the following connections:
●86G between components 120 and 331,
●86M between components 120 and 331.
If the connection or connections are faulty and there is a repair procedure (see Technical Note 6015A, Electrical
wiring repair, Wiring: Precautions for repair), repair the wiring, otherwise replace it.
–If the fault is still present, contact the Techline.
SIM32_V44_DF106/SIM32_V4C_DF106/SIM32_V50_DF106/SIM32_V54_DF106
AFTER REPAIRFollow the instructions to confirm repair:
- If the fault is present, continue to deal with the fault.
- If the fault is stored, ignore it.
Deal with any other faults.
Clear the stored faults.

17B-203V7 MR-413-X44-17B000$151.mif
PETROL INJECTION
Fault finding – Interpretation of statuses17B
SIM 32 Injection
Program no.: D3
Vdiag No.: 44, 4C, 50
and 54
ET077IMPACT DETECTED–No
–Yes
STATUS
DEFINITIONNO: This status indicates that the airbag computer has not detected an impact.
YES: This status indicates that the airbag computer has detected an impact.
NOTESThere must be no present or stored faults.
Special notes:
The fault appears when the UCH receives a frontal impact signal from the Airbag
computer via the multiplex network.
As soon as the UCH receives this signal, engine operation is prohibited.
Conformity check with engine stopped and ignition on, or engine running, and engine coolant
temperature > 80˚C
"NO"The status is usually NO as no impact has been detected.
Otherwise, check the airbag computer (see 88C, Airbags and pretensioners).
"YES"If YES an impact must be present.
Otherwise, check the airbag computer (see 88C, Airbags and pretensioners).
If the vehicle has been involved in an accident:
Carry out any necessary repairs:
–switch off the ignition for 10 seconds,
–switch on the ignition again.
If status ET077 is YES, run fault finding on the airbag computer (see 88C, Airbags and pretensioners).
If the vehicle has not suffered an accident, run fault finding on the airbag computer (see 88C, Airbag and
pretensioners).
SIM32_V44_ET077/SIM32_V4C_ET077/SIM32_V50_ET077/SIM32_V54_ET077
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.

17B-256V7 MR-413-X44-17B000$153.mif
PETROL INJECTION
Fault finding – Interpretation of statuses17B
SIM 32 Injection
Program no.: D3
Vdiag No.: 44, 4C, 50
and 54
ET703
CONTINUED 1
"MINUS"
Decrease button pressed.
In the event of a fault, refer to the interpretation of status ET703.
"PLUS"Increase button pressed.
In the event of a fault, refer to the interpretation of status ET703.
Sensor electrical conformity
INACTIVEStatus ET703 becomes INACTIVE when none of the cruise control / speed limiter
buttons is pressed. These buttons are located on the steering wheel.
To carry out the checks and measurements in complete safety, observe the driver's
frontal airbag removal recommendations (see MR 392 (Clio III), MR 385 (Modus),
MR 411 (New Twingo), or MR 442 (E33), Mechanical, 88C, Airbag and
pretensioners, Driver's frontal airbag: Removal - Refitting).
If status ET703 does not display INACTIVE,
–check the condition of the cruise control/speed limiter +/- button and the condition
of its connector.
–check the condition of the cruise control/speed limiter "R/0" button and the
condition of its connector,
If the connector(s) is faulty and if there is a repair procedure (see Technical Note
6015A, Repairing electrical wiring, Wiring: Precautions for repair), repair the
connector, otherwise replace the wiring.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.

17B-257V7 MR-413-X44-17B000$153.mif
PETROL INJECTION
Fault finding – Interpretation of statuses17B
SIM 32 Injection
Program no.: D3
Vdiag No.: 44, 4C, 50
and 54
ET703
CONTINUED 2
INCREASE
Status ET703 becomes INCREASE when the cruise control/speed limiter + button is
pressed. This button is on the steering wheel, on the left-hand side.
To carry out the checks and measurements in complete safety, observe the driver's
frontal airbag removal recommendations (see MR 392 (Clio III), MR 385 (Modus),
MR 411 (New Twingo), or MR 442 (E33), Mechanical, 88C, Airbag and
pretensioners, Driver's frontal airbag: Removal - Refitting).
If status ET703 does not display INCREASE, check the condition of the cruise
control/speed limiter +/- button, and the condition of its connector.
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.
Measure the resistance of the following connections while pressing the + button
(on the button connections):
●86G of component 331.
●86M of component 331.
If the resistance is not X ≈ 300 Ω, check the continuity of the connection when the
button is in the rest position.
If there is continuity, replace the +/- control button.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.

17B-258V7 MR-413-X44-17B000$153.mif
PETROL INJECTION
Fault finding – Interpretation of statuses17B
SIM 32 Injection
Program no.: D3
Vdiag No.: 44, 4C, 50
and 54
ET703
CONTINUED 3
DECREASE
Status ET703 becomes MINUS when the cruise control/speed limiter "-" button is
pressed. This button is on the steering wheel, on the left-hand side.
To carry out the checks and measurements in complete safety, observe the driver's
frontal airbag removal recommendations (see MR 392 (Clio III), MR 385 (Modus),
MR 411 (New Twingo), or MR 442 (E33), Mechanical, 88C, Airbag and
pretensioners, Driver's frontal airbag: Removal - Refitting).
If status ET703 does not change to DECREASE, check the condition of the cruise
control/speed limiter +/- button and check the condition of its connector.
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.
Measure the resistance of the following connection while pressing the "-" button
(on the button connections):
●86G of component 331.
●86M of component 331.
If the resistance is not X ≈ 100 Ω, check the continuity of the connection when the
button is in the rest position.
If there is continuity, replace the +/- control button.
SUSPENDStatus ET703 becomes SUSPEND when the cruise control/speed limiter "0" button
is pressed. This button is located on the steering wheel, to the right.
To carry out the checks and measurements in complete safety, observe the driver's
frontal airbag removal recommendations (see MR 392 (Clio III), MR 385 (Modus),
MR 411 (New Twingo), or MR 442 (E33), Mechanical, 88C, Airbag and
pretensioners, Driver's frontal airbag: Removal - Refitting).
If status ET703 does not become SUSPEND, check the condition of the cruise
control/speed limiter "R/0" button and the condition of its connector.
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.
Measure the resistance of the following connection while pressing the "0" button
(on the button connections):
●86G of component 331.
●86M of component 331.
If the resistance is not X ≈ 0 Ω, replace the R/0 control button.
If there is continuity, replace the R/0 control button.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.

17B-259V7 MR-413-X44-17B000$153.mif
PETROL INJECTION
Fault finding – Interpretation of statuses17B
SIM 32 Injection
Program no.: D3
Vdiag No.: 44, 4C, 50
and 54
ET703
CONTINUED 4
RESUME
Status ET703 becomes RESUME when the cruise control/speed limiter "R" button is
pressed. This button is located on the steering wheel, to the right.
To carry out the checks and measurements in complete safety, observe the driver's
frontal airbag removal recommendations (see MR 392 (Clio III), MR 385 (Modus),
MR 411 (New Twingo), or MR 442 (E33), Mechanical, 88C, Airbag and
pretensioners, Driver's frontal airbag: Removal - Refitting).
If status ET703 does not change to RESUME, check the status of the cruise control/
speed limiter R/0 button and the condition of its connector.
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.
Measure the resistance of the following connection while pressing the R button
(on the button connections):
●86G of component 331.
●86M of component 331.
If the resistance is not X ≈ 900 Ω, check the continuity of the connection when the
button is in the rest position.
If there is continuity, replace the R/0 control button.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.