Page 5 of 40
88C-5V1 MR-376-X76-88C000$010.mif
AIRBAGS AND PRETENSIONERS
Fault finding – Introduction88C
2nd generation
(AC4 phase II)
5. FAULT FINDING PROCEDURE
Check the battery charge
and the condition of the fuses
Print the system fault finding log
(available on CLIP)
Connect CLIP
See ALP no. 1
Read the faults
Deal with present faults
Deal with stored faults
Conformity check
Use fault finding charts (ALPs)
Dialogue with
computer?
Faults
present
The cause is
still present
The cause is
still presentThe cause is
still present
Contact the Techline with the
completed fault finding log
no
nono
no no
yes
yes
yes
Fault
solvedFault solved Fault solved
Page 9 of 40

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.
Page 16 of 40
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.
Page 39 of 40

88C-39
AFTER REPAIRWhen communication is established, deal with any faults indicated.
V1 MR-376-X76-88C000$120.mif
88C
2nd generation
(AC4 phase II)
ALP1 No dialogue with the airbag computer
NOTESUse Wiring Diagrams Technical Note for Kangoo VLL.
Try to establish dialogue with a computer on another vehicle to make sure that the diagnostic tool is not faulty. If
the tool is not the cause of the fault and if the dialogue cannot be established with any other computer of the same
vehicle, it may be that a faulty computer is disrupting diagnostic lines HK and HL.
Use a process of successive disconnections to locate this computer.
Check the battery voltage and carry out the necessary operations to obtain a correct voltage (10.5 volts < battery
voltage < 16 volts).
Check the presence and condition of the airbag computer supply fuse.
Check that the computer connector is connected correctly and check the condition of its connections.
Check that the supply to the computer is correct:
– Disconnect the airbag computer and fit the B40 30-track adapter.
– Check and ensure the presence of + after ignition between the terminals marked earth and + after ignition.
AIRBAGS AND PRETENSIONERS
Fault finding – Fault Finding Chart