3 Series E30 325i (M20) SAL
In the test modules listed in the "DIS testing schedule", first check which test modules are
directly associated with the customer complaint or the identified malfunction. These test
modules should be called up and worked through with priority.
Once started, test modules must be completely processed. Processing is only completed
when the message "Test module completed. Continue in testing schedule" is given and you
return to the testing schedule with the right arrow key.
If the diagnosis user is prompted in the test module to send feedback about the test result
obtained, this prompt must be followed.
A test module may only be cancelled prematurely is one of the following reasons is given:
Test module was selected by mistake
Programming error makes cancellation necessary
Test modules that are obviously not directly associated with the customer's complaint or the
malfunction identified should be ignored (please refer to section 5. Dealing with stored
The "DIS testing schedule" is completed when:
The cause of the fault has been identified
No malfunction or component fault can be identified with the test modules listed in the
5. Dealing with stored faults
For technical reasons, it can happen that a control unit stores a fault even though no
malfunction can be detected. Moreover, faults may be stored in the vehicle whose causes
have already been eliminated.
For this reason, it is not uncommon for faults to be stored that are not directly associated
with a customer complaint or with an identified fault pattern, especially on high-mileage
vehicles. When performing diagnosis, you should therefore use the fault memory details to
check which fault memory entries can be ignored.
The following fault memory details are especially significant here:
Current fault status (fault currently present / not currently present)
km reading (time) of last occurrence of the fault
Replacing a component on the basis of the fault memory entry is only justified if the fault
memory details clearly show that the stored fault is directly associated with the customer
complaint or the fault pattern.
6. Drawing up and processing your "own testing schedule"
Your "own testing schedule" can be used to select test modules for checking functions and
component on the basis of your own experience.
This is always advisable when the cause of the fault cannot be identified unambiguously
with the "DIS testing schedule". The test modules are selected in the <Function selection>.
The selection structure allows the relationship between function and component to be
The following rules apply when performing test modules:
SI Specified process for diagnosis BMW, MINI
BMW AG - TIS
Issue status (12/2007) Valid only until next DVD is issued
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