88C-3
MR-413-X44-88C000$077.mif
V3
MRSZ AIRBAG
Vdiag: 04AIRBAGS AND PRETENSIONERS
Fault finding - Introduction88C
Faults
Consider the fault status, present or stored when the diagnostic tool is used after the + after ignition feed
(without operating the system components).
Present faults must be dealt with according to the procedure specified in the Interpretation of faults section.
For a stored fault, note the faults displayed and apply the Notes section.
If the fault is confirmed when the notes are applied, the fault is present. Deal with the fault
If the fault is not confirmed, check:
–the electrical lines which correspond to the fault,
–the connectors on these lines (corrosion, bent pins, etc.),
–the resistance of the component detected as faulty,
–the condition of the wires (melted or split insulation, wear).
Or use the fault finding to check the circuit of the faulty component.
Conformity check
The aim of the conformity check is to check statuses and parameters that do not produce a fault display on the
diagnostic tool when they are inconsistent. Therefore, this stage is used to:
–Run fault finding on faults that do not have a fault display, and which may correspond to a customer
complaint,
–To check that the system is operating correctly, and that there is no risk of a fault recurring after repairs.
–This section gives the fault finding procedures for statuses and parameters and the conditions for
checking them.
If a status is not behaving normally or a parameter is outside the permitted tolerance values, consult the
corresponding fault finding page.
Customer complaints - Fault finding chart
If the diagnostic tool check is in order, but the customer complaint is still present, the fault should be dealt with as a
customer complaint.
A summary of the overall procedure to follow is provided on the following page in the
form of a flow chart.
