Volkswagen Passat 1995 Official Factory Repair Manual page 1401

Ignition, servicing
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Ignition, servicing
General notes on ignition system
This section deals specifically with ignition-
related components. The other components of
the injection and ignition system
For the electric components to work properly, a
voltage of at least 11.5 V is required.
The battery must only be disconnected and
connected with the ignition switched off, since
the Engine Control Module (ECM) can
otherwise be damaged.
Engine Control Module (ECM) is equipped with
On Board Diagnostic (OBD).
Components marked with * are tested via On
Board Diagnostic (OBD)
Diagnostic mode 3: Check DTC memory.
It is possible that the control module will
recognize a malfunction and store a DTC during
some tests. Therefore the following work steps
must be performed in the mentioned sequence
after ending all tests and repairs.
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6/12/2004