2013 RENAULT KANGOO Air Bags AC4 And Pretensioners Workshop Manual

88C-9V1 MR-376-X76-88C000$010.mif
AIRBAGS AND PRETENSIONERS
Fault finding – Introduction88C
2nd generation
(AC4 phase II)
6. FAULT FINDING LOG
You will always be asked for this log:
– when requesting technical assistance from the Techline,
– when requesting approval before replacing parts for which approval is compulsory,
– to be attached to monitored parts for which reimbursement is requested. The log is needed for warranty
reimbursement, and enables better analysis of the parts removed.
7. SAFETY INSTRUCTIONS
Safety rules must be observed during any work on a component to prevent any material damage or personal injury:
– check the battery voltage to avoid incorrect operation of computer functions,
– use the proper tools.IMPORTANT!IMPORTANT
All faults involving a complex system call for thorough diagnostics with the appropriate tools. The
FAULT FINDING LOG, which should be completed during the fault finding procedure, ensures a
record is kept of the procedure carried out. It is an essential document when consulting the
manufacturer.
IT IS THEREFORE ESSENTIAL THAT THE FAULT FINDING LOG IS FILLED OUT EVERY TIME IT IS
REQUESTED BY TECHLINE OR THE WARRANTY RETURNS DEPARTMENT.

88C-10V1 MR-376-X76-88C000$020.mif
88C
2nd generation
(AC4 phase II)
SYSTEM CONFIGURATION FAULT FINDING - DATA SHEET
Pretensioners, passenger and driver's front air bags
A Centralised unit
B Driver's seat
C Passenger seat
D Pretensioner
E Driver's airbag ignition module
G Passenger airbag ignition moduleCT Rotary switch
IImpact signal
+ 12 volts/earth
Warning light/fault finding lines
AIRBAGS AND PRETENSIONERS
Fault finding – Operating diagram

88C-11V1 MR-376-X76-88C000$020.mif
AIRBAGS AND PRETENSIONERS
Fault finding – Operating diagram88C
2nd generation
(AC4 phase II)
Correct insulation value: display > = 100 h or 9999 flashing.AIRBAGS
Measuring point Correct value
Driver C0, C2 and C42 to 9.4 ohms
Passenger C0 and C41.6 to 4.6 ohms
PRETENSIONERS
Measuring point Correct value
C0, C1 and C31.6 to 4.6 ohms

88C-12V1 MR-376-X76-88C000$030.mif
88C
2nd generation
(AC4 phase II)
CONFIGURATION/CONFIGURATION READING
– The configuration reading commands are used to read the computer configuration status in relation to the trigger
lines installed in the vehicle.
PARAMETER SETTINGS:
LOCK COMPUTER
This command should be used for any operation on the system. It inhibits all of the trigger lines.
UNLOCK COMPUTER
This command is used to unlock the computer when it is new or if it has been deactivated via the UNLOCK
COMPUTER command.Configuration reading Option Configuration
DRIVER'S FRONTAL AIRBAG WITH
Computer configuration PASSENGER FRONTAL AIRBAG WITH
DRIVER'S PRETENSIONER NONE
PASSENGER PRETENSIONER NONE
IMPACT SIGNAL WITH
VEHICLE TYPE READING KANGOO
AIRBAGS AND PRETENSIONERS
Fault finding – Configuration and programming

88C-13V1 MR-376-X76-88C000$040.mif
88C
2nd generation
(AC4 phase II)
REPLACING THE AIRBAG COMPUTER
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 indicator light on the instrument panel illuminates.
Follow this procedure when replacing an air bag computer:
– Make sure the ignition is switched off.
– Replace the computer (see MR Mechanical: MR-AIRBAGS-SRP, 88, Airbags and seat belt pretensioners,
Computer: Removal-refitting).
– Carry out a check using the diagnostic tool.
– If necessary, modify the computer configuration using the "Configuration" command.
– Switch off the ignition.
– Unlock the computer only if no faults are indicated by the diagnostic tool.
WARNING:
The owner of the vehicle may have locked the passenger front airbag to allow a child seat to be fitted to
the front passenger seat. In this case, the procedure for locking the passenger front airbag defined in the
Technical Note published for this subject has been applied, i.e.:
– Signing of a discharge by the customer (example in the Technical Note).
– Replacement of the passenger front seat belt.
– Disconnection of the passenger front airbag module.
– Locking of the trigger line of the passenger front airbag and modification of the computer configuration.
– Replacement of the "airbag" labels on the passenger side.
If this procedure has been applied, it is imperative to relock the passenger front airbag using the "Lock
passenger front airbag" command ("Configuration and programming" section).
It is vital that you never use this passenger airbag locking command before a Technical Note dealing with
the subject has been distributed.
AIRBAGS AND PRETENSIONERS
Fault finding – Replacement of components

88C-14V1 MR-376-X76-88C000$050.mif
88C
2nd generation
(AC4 phase II)
Tool fault Diagnostic tool title
DF001Computer
DF002Computer feed voltage
DF003Driver's frontal airbag circuit
DF004Passenger's frontal airbag circuit
DF010Fault warning light circuit
DF016Computer configuration
DF029Driver’s pretensioner circuit
DF030Passenger’s pretensioner circuit
DF034Computer locked
AIRBAGS AND PRETENSIONERS
Fault finding – Fault summary table

88C-15
AFTER REPAIRDeal with any faults displayed by the diagnostic tool.
Clear the computer memory.
Carry out a road test followed by another check with the diagnostic tool.
V1 MR-376-X76-88C000$060.mif
88C
2nd generation
(AC4 phase II)
DF001
PRESENT
OR
STOREDCOMPUTER
1.DEF: Internal electronic fault
2.DEF: Impact detected
NOTESUse Wiring Diagrams Technical Note for Kangoo VLL.
Replace the airbag computer, component code 756 (consult the section "Replacement of components" for this
operation) (see MR Mechanical: MR-AIRBAGS-SRP, 88, Airbags and seat belt pretensioners, Computer:
Removal-refitting).
AIRBAGS AND PRETENSIONERS
Fault finding – Interpretation of faults

88C-16
AFTER REPAIRDeal with any faults displayed by the diagnostic tool.
Clear the computer memory.
Carry out a road test followed by another check with the diagnostic tool.
V1 MR-376-X76-88C000$060.mif
AIRBAGS AND PRETENSIONERS
Fault finding – Interpretation of faults88C
2nd generation
(AC4 phase II)
DF002
PRESENT
OR
STOREDCOMPUTER SUPPLY VOLTAGE
1.DEF: Too many micro-breaks
2.DEF: Supply voltage too low
NOTESUse the B40 30-track adapter to work on the computer connector.
Use Wiring Diagrams Technical Note for Kangoo VLL.
1.DEF
2.DEF
NOTESNone.
Carry out the operations necessary to obtain the correct computer supply voltage:
10.5 volts ± 0.1 < correct voltage < 16 volts ± 0.1.
– Battery charge check.
– Charging circuit check.
– Check the tightness and condition of the battery terminals.
– Computer earth check.
– Check the condition of the + computer locking connections.