ESP RENAULT SCENIC 2011 J95 / 3.G Air Bag RC5 - Seat Belt Pretensioners Workshop Manual

88C-4
MR-372-J84-88C100$059.mif
V5
AIRBAG RC5
Vdiag: 14AIRBAGS AND PRETENSIONERS
Fault finding – Introduction88C
Faults
Faults are declared present or stored (depending on whether they appeared in a certain context and have
disappeared since, or whether they remain present but are not diagnosed within the current context).
The present or stored status of the faults should be taken into consideration when the diagnostic tool is used after
the + after ignition feed has been connected (with no action on the system components).
For a fault present, apply the procedure described in the section on the Interpretation of faults.
For a stored fault, note the faults displayed and apply the instructions in the Notes section.
If the fault is confirmed when the instructions in the Notes section are applied, the fault is present. Deal with
the fault.
If the fault is not confirmed, check:
– the electrical lines which correspond to the fault,
– the connectors for these lines (for oxidation, bent pins, etc.),
– the resistance of the component detected as defective,
– the condition of the wires (melted or cut insulation, wear),
– or use the fault finding procedure to check the circuit of the component at fault.
Conformity check
The aim of the conformity check is to check data that does not produce a fault on the diagnostic tool because
the data is inconsistent. Therefore, this stage is used to:
– run fault finding on faults that do not have a fault display, and which may correspond to a customer complaint,
– check that the system is operating correctly and that there is no risk of a fault recurring after repairs.
This section gives the fault finding procedures for statuses and parameters and the conditions for checking them.
If a status is not behaving normally or a parameter is outside the permitted tolerance values, consult the
corresponding fault finding page.
Customer complaints - Fault finding chart
If the test with the diagnostic tool is OK but the customer complaint is still present, the fault should be processed by
customer complaints.
A summary of the overall procedure to follow is provided on the following page in
the form of a flow chart

88C-14
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V5
88C
AIRBAGS AND PRETENSIONERS
Fault finding – Replacement of components
REPLACING A SYSTEM COMPONENT
Disconnect the battery before removing and refitting any pyrotechnic component (airbag module,
pretensioner or seat belt retractor).
REPLACING THE AIRBAG COMPUTER
BEFORE REPLACING THE COMPUTER IT IS ESSENTIAL THAT YOU CONTACT THE TECHLINE.
To ensure that the returned computer's fault can be analysed, do not use command RZ001 "Fault memory"
when DF001 "Computer" is present or stored.
The airbag computers are sold in locked mode to avoid all risk of accidental triggering (all ignition lines are inhibited).
The "locked" mode is indicated when the airbag fault warning light on the instrument panel illuminates.
Follow this procedure to replace an airbag computer:
– check that the ignition is switched off,
– replace the computer,
– modify the computer configuration if necessary,
– write the VIN to the computer using the diagnostic tool command VP010 Write VIN,
– switch off the ignition,
– carry out a check using the diagnostic tool,
– unlock the computer using the command VP007 Unlock computer, only if there are no faults declared by the
diagnostic tool and check that the warning light has gone out.
After the computer has been replaced, if there are abnormalities on the impact sensors, it is necessary to check that
the sensors fitted are compatible with the airbag computer connected to the vehicle. If not, it is necessary to order
the sensors which are specifically for the respective airbag.
Note:
After the airbag computer is replaced, if the engine no longer starts, restore the injection operation by applying the
following procedure:
– Run command RZ001 to clear the faults from the injection computer memory (even if no present or stored faults
are declared).
– Switch off the ignition and wait for loss of dialogue with the injection computer.
–Drive for 1 minute at a speed greater than 21 mph (35 km/h) to restore the operation of the steering column
lock.
AIRBAG RC5
Vdiag: 14

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V5
AIRBAG RC5
Vdiag: 14AIRBAGS AND PRETENSIONERS
Fault finding – Fault summary table88C
Tool fault Associated DTC Diagnostic tool title
DF183 9029Driver's front buckle pretensioner circuit.
DF184 902APassenger front buckle pretensioner circuit.
DF177 8073Driver's side rear inertia reel circuit
DF178 8075Rear passenger side seat belt inertia reel circuit
DF193 80DFPassenger airbag locking status change.
DF194 907FComputer to be replaced following impact
DF232 9051Driver's seat belt buckle sensor circuit
DF242 907BLeft-hand/right-hand drive configuration
DF262 0500Vehicle speed multiplex signal
DF263 C121No ABS/ESP multiplex signal
DF264 C155No instrument panel multiplex signal
DF265 C151Multiplex signal control module
DF270 C140No UCH multiplex signal
DF273 C423Instrument panel
DF282 C100No injection multiplex signal

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V5
AIRBAGS AND PRETENSIONERS
Fault finding – Interpretation of faults
AIRBAG RC5
Vdiag: 14
88C
DF038
CONTINUED
1.DEF
NOTESNone.
This fault corresponds to an inconsistency between the computer configuration and the vehicle equipment
detected by the computer. The computer detects the presence of an additional component to its configuration or
the computer detects a programmed component which is not fitted to the vehicle.
2.DEF
NOTESIf the fault is still present, check whether the sensor fitted is
compatible with the airbag computer connected to the
vehicle. If not, order the sensor which is specifically for the
airbag fitted.
Replace the driver's side sensor.
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.

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AIRBAGS AND PRETENSIONERS
Fault finding – Interpretation of faults
AIRBAG RC5
Vdiag: 14
88C
DF043
CONTINUED
1.DEF
NOTESNone.
This fault corresponds to an inconsistency between the computer configuration and the vehicle equipment
detected by the computer. The computer detects the presence of an additional component to its configuration or
the computer detects a programmed component which is not fitted to the vehicle.
2.DEF
NOTESIf the fault is still present, check whether the sensor fitted is
compatible with the airbag computer connected to the
vehicle. If not, order the sensor which is specifically for the
airbag fitted.
Replace the passenger side sensor.
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.

88C-31
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V5
AIRBAGS AND PRETENSIONERS
Fault finding – Interpretation of faults
AIRBAG RC5
Vdiag: 14
88C
DF065
PRESENT
OR
STORED
DRIVER'S SEAT POSITION SENSOR 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 : Values outside permissible tolerances
NOTESPriorities when dealing with a number of faults:
If DF065 is present with at least one of the faults DF077, DF232, DF081, begin fault
finding by checking the 8-track connector located underneath the seat.
Special notes:
Use the 64-track adapter Elé. 1717 when working on the computer connector.
CO
CC
CC.0
CC.1
2.DEF
NOTESNone.
Lock the computer using the diagnostic tool.
Fit the 64-track test adapter Elé. 1717 and measure the resistance between the tracks 9 and 10, with the seat in
the forward position and in the back position.
When the seat is forward, the resistance should be approximately 400Ω (275Ω When the seat is in the back position, the resistance should be approximately 100Ω (65Ω If the resistances are correct, check the connections of the 64-track computer connector.
If the resistance is incorrect, check that the seat position sensor is correctly fitted on the seat runner.
Check the connections of the 8-track seat connector (tracks A1 and A2).
If all the tests are correct, replace the driver's front seat position sensor.
AFTER REPAIRReconnect the computer, the seat position sensor, and the under-seat connector, then
switch on the ignition again. Clear 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.
ABGRC5_V14_DF065

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V5
AIRBAGS AND PRETENSIONERS
Fault finding – Interpretation of faults
AIRBAG RC5
Vdiag: 14
88C
DF065
CONTINUED
1.DEF
NOTESNone.
This fault corresponds to an inconsistency between the computer configuration and the vehicle equipment
detected by the computer.
The computer detects the presence of an additional component to its configuration or the computer detects a
programmed component which is not fitted to the vehicle.
AFTER REPAIRReconnect the computer, the seat position sensor, and the under-seat connector, then
switch on the ignition again.
Clear 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.

88C-76
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V5
AIRBAGS AND PRETENSIONERS
Fault finding – Interpretation of faults
AIRBAG RC5
Vdiag: 14
88C
DF262
PRESENT
OR
STOREDMULTIPLEX VEHICLE SPEED SIGNAL
1.DEF: Vehicle speed too high
2.DEF: No vehicle speed
3.DEF: Invalid vehicle speed
NOTESNone.
Apply the multiplex network fault finding procedure (see88B, Multiplexing).
Test the ABS or ESP or VSU system (see 38C, Anti-lock braking system or 38G, Vehicle speed computer).
AFTER REPAIRClear the computer fault memory. Switch off the ignition.
Carry out another check using the diagnostic tool.
ABGRC5_V14_DF262

88C-77
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V5
AIRBAGS AND PRETENSIONERS
Fault finding – Interpretation of faults
AIRBAG RC5
Vdiag: 14
88C
DF263
PRESENT
OR
STOREDNO ABS/ESP MULTIPLEX SIGNAL
NOTESNone.
Apply the multiplex network fault finding procedure (see88B, Multiplexing).
Test the ABS or ESP system (see38C, Anti-lock braking system).
AFTER REPAIRClear the computer fault memory. Switch off the ignition.
Carry out another check using the diagnostic tool.
ABGRC5_V14_DF263

88C-83
MR-372-J84-88C100$590.mif
V5
88C
AIRBAGS AND PRETENSIONERS
Fault finding – Conformity check
NOTESOnly carry out this conformity check after having carried out a complete check using
the diagnostic tool.
FunctionParameter or status
checked or actionDisplay and notes Fault finding
Dialogue
diagnostic tool-Airbag RC5 P1/P2Consult ALP1
Computer
conformityLC034 Type of vehicleCheck that the computer
configuration corresponds to
the vehicle.CF215 Vehicle type
Computer/Ignition
lines configurationUsing the READ
CONFIGURATION
commandsCheck that the computer
configurations match
the actual equipment fitted to
the vehicle.Using the commands SC005
Configuration of system
components
Operation of
the warning light.
Computer
initialisation check.Ignition onThe warning light illuminates
for 3 seconds when
the ignition is switched on.None
ABGRC5_V14_CCONF
AIRBAG RC5
Vdiag: 14