MULTIMEDIA
Fault finding - Introduction
86C
86C-3V5 MR-372-J84-86C050$052.mif
ITS
Program No.: 0020
Vdiag No.: 04
Faults
Faults are declared present or stored (depending on whether they appeared in a certain context and have
disappeared since, or whether they remain present but are not diagnosed within the current context).
The present or stored status of the faults should be considered when the diagnostic tool is switched on after
the + after ignition feed is switched on (with no system components being active).
For a present fault, apply the procedure described 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 instructions 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 defective,
–the condition of the wires (melted or split insulation, wear).
Conformity check
The aim of the conformity check is to check data that does not produce a fault on the diagnostic tool because
the data is inconsistent. Therefore, this stage is used to:
–carry out fault finding on faults that do not have a fault display, and which may correspond to a customer
complaint.
–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 test with the diagnostic tool is OK but the customer complaint is still present, the fault should be processed by
Customer complaints.
A synopsis of the general procedure to follow is provided on the following page in
the form of a flow chart.
ITSJ84ph2V1.0
MULTIMEDIA
Fault finding - Fault finding charts
86C
86C-70V5 MR-372-J84-86C050$936.mif
ITS
Program No.: 0020
Vdiag No.: 04
ALP 19 The on screen display stays frozen
NOTESOnly check the customer complaint after performing a full check with the diagnostic
tool.
Check that the customer is using the navigation system correctly.
The display on the screen stays frozen.
Switch off the ignition and wait until the system shuts
down completely (at least 1 minute).
Switch on the ignition again.
Has the fault been solved?
YES
End of fault finding.
If the fault recurs, contact Techline.
NOContact Techline.
AFTER REPAIRCarry out a complete check with the diagnostic tool.
ITS_V04_ALP19ITSJ84ph2V1.0
