RENAULT SCENIC 2011 J95 / 3.G Air Bag ACU4 - Seat Belt Pretensioners Owner's Manual

AIRBAG - SEAT BELT PRETENSIONERS
Fault finding - Interpretation of faults
88C-21
88C
V3 MR-372-J84-88C000$071.mif
AIRBAG ACU4
VDIAG No.: 04
DF010
PRESENT
FAULT WARNING LIGHT CIRCUIT
1.DEF: External diagnostics (instrument panel signal)
2.DEF: Consistency (dashboard indicator light state signal / airbag request)
NOTESSpecial notes: none.
Apply the fault finding procedure relevant to this fault in the instrument panel fault finding information section.
AFTER REPAIRClear the computer memory then switch off the ignition.
Carry out the check again using the diagnostic tool and, if there are no faults, unlock
the computer.
ACU4 Vdiag04 J84 1.0

AIRBAG - SEAT BELT PRETENSIONERS
Fault finding - Interpretation of faults
88C-22
88C
V3 MR-372-J84-88C000$071.mif
AIRBAG ACU4
VDIAG No.: 04
DF028
PRESENT
PASSENGER AIRBAG STATUS INDICATOR LIGHT CIRCUIT
1.DEF: External diagnostics (instrument panel signal)
2.DEF: Consistency (dashboard indicator light state signal / airbag request)
NOTESSpecial notes: none.
Apply the fault finding procedure relevant to this fault in the instrument panel fault finding information section.
AFTER REPAIRClear the computer memory then switch off the ignition.
Carry out the check again using the diagnostic tool and, if there are no faults, unlock
the computer.
ACU4 Vdiag04 J84 1.0

AIRBAG - SEAT BELT PRETENSIONERS
Fault finding - Interpretation of faults
88C-23
88C
V3 MR-372-J84-88C000$071.mif
AIRBAG ACU4
VDIAG No.: 04
DF034
PRESENT
COMPUTER LOCKED
NOTESSpecial notes: none.
Using the diagnostic tool, run command VP007 to unlock the airbag computer.
AFTER REPAIRClear the computer memory then switch off the ignition.
Carry out the check again using the diagnostic tool and, if there are no faults, unlock
the computer.
ACU4 Vdiag04 J84 1.0

AIRBAG - SEAT BELT PRETENSIONERS
Fault finding - Interpretation of faults
88C-24
88C
V3 MR-372-J84-88C000$071.mif
AIRBAG ACU4
VDIAG No.: 04
DF039
PRESENT
DRIVER'S SIDE SENSOR CIRCUIT
CO: Open circuit
CC.0: Short circuit to earth
1.DEF: Communication disrupted
2.DEF: Sensor internal electrical fault
3.DEF: External diagnostics
NOTESSpecial notes: Use the 64-track adapter (Elé. 1717) when working on the computer
connector.
CO - CC.0 - 1.DEF
NOTESNone.
Lock the computer using the command on the diagnostic tool.
Check that the driver's side sensor is connected correctly and check its connections.
Check the condition of the connections on the computer (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 Track 1 sensor connector
Bornier (Elé. 1717) terminal 28 Track 2 sensor connector
2.DEF - 3.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 specifically for the airbag
fitted.
Replace the driver's side sensor.
AFTER REPAIRClear the computer memory then switch off the ignition.
Carry out the check again using the diagnostic tool and, if there are no faults, unlock
the computer.
ACU4 Vdiag04 J84 1.0

AIRBAG - SEAT BELT PRETENSIONERS
Fault finding - Interpretation of faults
88C-25
88C
V3 MR-372-J84-88C000$071.mif
AIRBAG ACU4
VDIAG No.: 04
DF040
PRESENT
PASSENGER SIDE SENSOR CIRCUIT
CO: Open circuit
CC.0: Short circuit to earth
1.DEF: Communication disrupted
2.DEF: Sensor internal electrical fault
3.DEF: External diagnostics
NOTESSpecial notes: Use the 64-track adapter (Elé. 1717) when working on the computer
connector.
CO - CC.0 - 1.DEF
NOTESNone.
Lock the computer using the command on the diagnostic tool.
Check that the driver's side sensor is connected correctly and check its connections.
Check the condition of the connections on the computer (tracks 61 and 62).
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 61 Track 1 sensor connector
Bornier (Elé. 1717) terminal 62 Track 2 sensor connector
2.DEF - 3.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 specifically for the airbag
fitted.
Replace the passenger side sensor.
AFTER REPAIRClear the computer memory then switch off the ignition.
Carry out the check again using the diagnostic tool and, if there are no faults, unlock
the computer.
ACU4 Vdiag04 J84 1.0

AIRBAG - SEAT BELT PRETENSIONERS
Fault finding - Interpretation of faults
88C-26
88C
V3 MR-372-J84-88C000$071.mif
AIRBAG ACU4
VDIAG No.: 04
DF051
PRESENT
DRIVER'S SIDE SENSOR CONFIGURATION
NOTESSpecial notes: none.
This fault corresponds to an inconsistency between the computer configuration and the vehicle equipment
detected by the computer. The computer has detected the presence of a component additional to its
configuration.
Read configuration LC025 under the heading Read configuration.
Use command CF207 to modify the computer configuration to the vehicle's equipment level.
AFTER REPAIRClear the computer memory then switch off the ignition.
Carry out the check again using the diagnostic tool and, if there are no faults, unlock
the computer.
ACU4 Vdiag04 J84 1.0

AIRBAG - SEAT BELT PRETENSIONERS
Fault finding - Interpretation of faults
88C-27
88C
V3 MR-372-J84-88C000$071.mif
AIRBAG ACU4
VDIAG No.: 04
DF052
PRESENT
PASSENGER SIDE SENSOR CONFIGURATION
NOTESSpecial notes: none.
This fault corresponds to an inconsistency between the computer configuration and the vehicle equipment
detected by the computer. The computer has detected the presence of a component additional to its
configuration.
Read configuration LC026 under the heading Read configuration.
Use command CF208 to modify the computer configuration to the vehicle's equipment level.
AFTER REPAIRClear the computer memory then switch off the ignition.
Carry out the check again using the diagnostic tool and, if there are no faults, unlock
the computer.
ACU4 Vdiag04 J84 1.0

AIRBAG - SEAT BELT PRETENSIONERS
Fault finding - Interpretation of faults
88C-28
88C
V3 MR-372-J84-88C000$071.mif
AIRBAG ACU4
VDIAG No.: 04
DF053
PRESENT
DRIVER'S SEAT POSITION SENSOR CONFIGURATION
NOTESSpecial notes: none.
This fault corresponds to an inconsistency between the computer configuration and the vehicle equipment
detected by the computer. The computer has detected the presence of a component additional to its
configuration.
Read configuration LC086 under the heading Read configuration.
Use command CF289 to modify the computer configuration to the vehicle's equipment level.
AFTER REPAIRClear the computer memory then switch off the ignition.
Carry out the check again using the diagnostic tool and, if there are no faults, unlock
the computer.
ACU4 Vdiag04 J84 1.0

AIRBAG - SEAT BELT PRETENSIONERS
Fault finding - Interpretation of faults
88C-29
88C
V3 MR-372-J84-88C000$071.mif
AIRBAG ACU4
VDIAG No.: 04
DF060
PRESENT
MULTIPLEX NETWORK
1.DEF: Carry out the multiplex network fault finding procedure
NOTESNone.
Apply the fault finding procedure for the multiplex network.
AFTER REPAIRClear the computer memory then switch off the ignition.
Check again using the diagnostic tool.
ACU4 Vdiag04 J84 1.0

AIRBAG - SEAT BELT PRETENSIONERS
Fault finding - Interpretation of faults
88C-30
88C
V3 MR-372-J84-88C000$071.mif
AIRBAG ACU4
VDIAG No.: 04
DF065
PRESENT
DRIVER'S SEAT POSITION SENSOR CIRCUIT
CO: Open circuit
CC.0: Short circuit to earth
CC.1: Short circuit to + 12 V
1.DEF: Below minimum threshold
2.DEF: Values outside the limits
NOTESPriorities when dealing with a number of faults: If DF065 is present with at least
one of faults DF077, DF210, DF232, or DF240, begin the fault finding by checking the
22-track under-seat connector.
Special notes: Use the 64-track adapter (Elé. 1717) when working on the computer
connector.
Lock the computer using the command on the diagnostic tool.
Fit the 64-track test adapter (Elé. 1717) and measure the resistance between track 9 and track 10,
with the seat in the forward position and in the back position.
In the forward position, the resistance should be approximately 400Ω (275 < Ξ < 545 Ω)
In the back position, the resistance should be approximately 100Ω (65 < Ξ < 145 Ω)
If the resistances are correct, check the connections of the 64-track computer connector.
Check the connections of the 22-track connector under the seat. Repair if necessary.
Fit the 22-track test adapter (Elé. 1687) and measure the resistance between tracks 3 and 4, with the seat in
the forward position and in the back position.
In the forward position, the resistance should be approximately:400Ω (275 < X < 545)
In the back position, the resistance should be approximately: 100Ω (65 < X < 145)
Are the values correct?
NO
YES
Check the connection and the condition of the sensor connectors.
Check the continuity and insulation of the connections between:
Bornier Track 3 Track 2 sensor connector
Bornier Track 4 Track 1 sensor connector
If the checks are correct, replace the seat position sensor.
Check the connections of the seat connector (tracks 3 and 4) again, as well as the
connections of the 64-track connector (tracks 9 and 10).
If the fault persists, the wiring is faulty between the computer and the driver's seat
(C0/C1).
Replace the wiring if necessary.
AFTER REPAIRReconnect the computer, the seat position sensor, and the under-seat connector, then
switch on the ignition again. Clear the computer memory then switch off the ignition.
Carry out the check again using the diagnostic tool and, if there are no faults, unlock
the computer.
ACU4 Vdiag04 J84 1.0