Do not touch high voltage wires while the engine is running.
Disconnect and connect high-voltage wires only when the ignition is off.
Disconnect and connect instrumentation only when the ignition is off.
If you need to turn the engine over with the starter without starting it (e.g. when measuring compression), disconnect the connecting blocks with wires from the ignition module and injectors.
Wash the engine only with the ignition off.
Disconnect and attach wires to the battery terminals only when the ignition is off.
After repairing the ignition system, it is necessary to clear the fault memory of the engine control unit.
Do not allow the battery to discharge, as the battery voltage must be at least 11.5 V for normal operation of electrical equipment.