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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 – Configurations and programming88C
OTHER COMMANDS
–VP006: Lock computer.
This command should be used for any operation on the system. It permits inhibition of all trigger lines.
–VP007: Unlock computer.
This command is used to unlock the computer when it is new or if it has been deactivated via the
command VP006.
–VP010: Enter VIN.
This command is used to enter the VIN number into the computer.
–SC004: Read impact context.
Use this command during repair of the vehicle following an impact. The command enables the list of
trigger lines active and the system status upon impact to be accessed in the computer which is being
replaced.
–SC005: Configuration of System Components.
This command is used to configure the ignition lines and the vehicle sensors.
The command displays the current configuration of the ignition lines and sensors and is used to enter the
required configurations in accordance with the specifications of each vehicle.
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V5
AIRBAGS AND PRETENSIONERS
Fault finding – Interpretation of faults
AIRBAG RC5
Vdiag: 14
88C
DF002
PRESENT
OR
STOREDCOMPUTER SUPPLY VOLTAGE
1.DEF: Supply voltage too low
2.DEF: Supply voltage too high
3DEF: Micro-breaks
NOTESSpecial notes: Use the 22-track adapter Elé. 1685 when working on the computer connector (cable 1).
Carry out the operations necessary to obtain the correct computer supply voltage:
10.5V ± 0.1 < correct voltage < 16V ± 0.1.
– Check the battery charge.
– Check the charging circuit.
– Check the tightness and the condition of the battery terminals.
– Check the computer earth.
– Check the condition of the computer connections + locking.
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.
ABGRC5_V14_DF002
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V5
AIRBAGS AND PRETENSIONERS
Fault finding – Interpretation of faults
AIRBAG RC5
Vdiag: 14
88C
DF010
PRESENT
OR
STOREDFAULT WARNING LIGHT CIRCUIT
1.DEF: Consistency. (Status signal of the instrument panel indicator light/airbag
request)
2.DEF: External fault finding in the domain. (Instrument panel signal)
NOTESNone.
Apply the fault finding procedure relevant to this fault in the instrument panel fault finding information section.
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.
ABGRC5_V14_DF010
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V5
AIRBAGS AND PRETENSIONERS
Fault finding – Interpretation of faults
AIRBAG RC5
Vdiag: 14
88C
DF028
PRESENT
OR
STOREDPASSENGER AIRBAG STATUS WARNING LIGHT CIRCUIT
1.DEF: Consistency. (Status signal of the instrument panel indicator light/airbag
request)
2.DEF: External fault finding in the domain. (Instrument panel signal)
NOTESNone.
Apply the fault finding procedure relevant to this fault in the instrument panel fault finding information section.
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.
ABGRC5_V14_DF028
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V5
AIRBAGS AND PRETENSIONERS
Fault finding – Interpretation of faults
AIRBAG RC5
Vdiag: 14
88C
DF034
PRESENT
OR
STOREDCOMPUTER LOCKED
NOTESNone.
Using the diagnostic tool, run the command VP007 Unlock computer to unlock the airbag computer (unlock
the computer only if no faults are declared by the diagnostic tool and check that the warning light has gone out).
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.
ABGRC5_V14_DF034
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V5
AIRBAGS AND PRETENSIONERS
Fault finding – Interpretation of faults
AIRBAG RC5
Vdiag: 14
88C
DF038
PRESENT
OR
STOREDDRIVER'S SIDE SENSOR
CO : Open circuit
CC.0 : Short circuit to earth
1.DEF : Configuration
2.DEF : Sensor internal electronic fault
NOTESSpecial notes:
Use the 64-track adapter Elé. 1717 when working on the computer connector.
CC.0
CO
NOTESNone.
Lock the computer using the diagnostic tool.
Check that the driver's side sensor is connected correctly and check its connections.
Check the condition of the computer connections (tracks 27 and 28).
Check the condition of the 64-track connector (locking system, connections, etc.).
Check the continuity and insulation of the connections between:
– Bornier Elé. 1717 terminal 27
– Bornier Elé. 1717 terminal 28track 1 sensor connector
track 2 sensor connector
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.
ABGRC5_V14_DF038
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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.