Preparation For Tests (Section 22): Notes
WARNING:
Persons with heart pacemakers should never perform work on the ignition system.
WARNING:
Conductive parts of the ignition system are under high voltage. Never touch conductive parts when the ignition is switched on, when the engine is being "turned over" manually or with the starter, or when the engine is running.
CAUTION:
Electronic ignition systems operate in a dangerously high voltage range on the low voltage side (primary circuit) as well as on the high voltage side (secondary circuit). Due to high voltages in electronic ignition system contact with parts or terminals under power can be dangerous.
NOTE:
Always switch off the ignition when working on the ignition system, e.g.: replacing ignition system components, connecting engine test instruments, connecting removed assemblies for testing on test benches.
NOTE:
If it is necessary to switch on the ignition for work on the ignition system, observe safety precautions, dangerously high voltage is present in the entire ignition system.
NOTE:
Ensure that the engine and ignition are turned OFF when connecting/disconnecting equipment such as voltage signal pick-up on respective ignition cables and trigger pick-up on cylinder 1.
NOTE:
If installing an engine control module from another vehicle (only possible on vehicles without drive authorization system (DAS) up to the end of model year 1995), the control module's memory must be erased and the control module must be reactivated. See PROGRAMMING .
Turn ignition OFF. Connect test cable with socket box to engine control module (N3/4). See Fig 1 and Fig 2 .