Division 7.2.5

A change of the mode of operation (dual-fuel to liquid fuel or vice-versa) shall not stop nor reset the mechanisms implemented to comply with the requirements set out in Annex IV (e.g. counters). However, in the case where one of these mechanisms (for example a diagnostic system) depends on the actual operation mode the counter associated with that mechanism may, at the request of the manufacturer and upon approval of the approval authority:

1. (a)

   Halt and, when applicable, hold their present value when the operation mode changes;

2. (b)

   Restart and, when applicable, continue counting from the point at which they have been held when the operation mode changes backs to the other operation mode.