engine RENAULT SCENIC 2011 J95 / 3.G Air Bag ACU4 - Seat Belt Pretensioners Workshop Manual

AIRBAG - SEAT BELT PRETENSIONERS
Fault finding – Replacement of components
88C-12
88C
V3 MR-372-J84-88C000$040.mif
AIRBAG ACU4
VDIAG No.: 04
AIRBAG - SEAT BELT PRETENSIONERS
Fault finding – Replacement of components
REPLACING THE AIRBAG COMPUTER
BEFORE REPLACING ANY COMPUTER, YOU ARE REQUIRED TO CONTACT YOUR
TECHLINE.
So that the failure of the returned computer can be analyzed, the use of command RZ001
"erase fault memory" when DF001 "Computer" is present or stored is officially prohibited.
The airbag computers are sold in locked mode to avoid all risk of accidental triggering (all ignition lines are
inhibited).
The locked mode is signalled when the airbag fault warning indicator lights up on the instrument panel.
Follow this procedure to replace an airbag computer:
– Ensure that the ignition is switched off.
– Replace the computer.
– Modify the computer configuration if necessary.
– Enter the VIN into the computer with diagnostic tool command VP010 Write VIN.
– Switch off the ignition.
– Carry out a check using the diagnostic tool.
– Enter the After Sales operation date with diagnostic tool command VP008 Write last After Sales operation
date.
– Unlock the computer only if no faults are indicated by the diagnostic tool.
After an ACU4 computer has been replaced with a RC5 computer, it is also necessary to replace the impact
sensors. The ACU4 sensors are incompatible with the RC5 computer.
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.
ACU4 Vdiag04 J84 1.0

List of monitored parts: Airbag computer
FAULT FINDING LOG
System: Airbags and pretensionersPage 1 / 2
●Administrative identification
Date 2 0
Log completed by
Business name or no./
Country
Vehicle model
VIN:
Engine
Diagnostic tool CLIP
Version
●Customer complaint
1192 Airbag warning light lit
OtherPlease specify:
●
When the fault appears
011 When switched on 004 Intermittently 999 When starting the engine
005 While driving
OtherPlease specify:
●
Documentation used in fault finding
Fault finding procedure
Type of fault finding manual:
Workshop Repair Manual: Technical Note Assisted fault finding
Fault Finding Manual No.:
Wiring diagram used
Wiring Diagram Technical Note No.:
Other documentation
Title and/or part no.:
FD 16
Fault finding log
page to print or photocopy - page to print or photocopy - page to print or photocopy

To be read with the diagnostic tool (Identification screen):
FAULT FINDING LOG
System: Airbag and pretensionersPage 2 / 2
●Identification of the computer and parts replaced for the system
Part 1 part no.
Part 2 part no.
Part 3 part no.
Part 4 part no.
Part 5 part no.
Computer part no.
Supplier no.
Program no.
Software version
Calibration number
VDIAG
●Faults found with the diagnostic tool
Fault no. Present Stored Fault title Specification
●
System-specific information
Total vehicle mileage (kilometrage) when the customer's problem
occurred:
How often does it occur?
How long after the engine starts?
●Additional information
What factors led you to replace the
computer?
What other parts were replaced?
Other faulty functions?
CAN
Wiring harness
SeatsInstrument panel
Battery
OtherRotary switch
Fuse
Please specify:
FD 16
Fault finding log
page to print or photocopy - page to print or photocopy - page to print or photocopy