Notes on avoiding damage to ignition system - AH15.10-P-0002-01L
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ENGINE 137, 275, 279, 285
Energy Controlled Ignition (ECI) ignition system
It is not possible to test the ignition sparks for example during a roadside assistance on this ignition system.
It is only possible to determine faults in this ignition system through reading out the diagnostic trouble code memory using the diagnostic system.
The electrical connections for ignition system components can only be disconnected after switching off the ignition.
To avoid damage, the ignition must not be switched on without a ground supply on the power pack for the ECI ignition system (N91). A sufficient ground supply can only be assured, if the power pack for the ECI ignition system (N91) is bolted on to the intake manifold (1).
Shown on engine 137