Magneti Marelli Electronic Systems MQBA0 Manuale Utente
Functional Manual
for IMMOBILIZER Certification
02/07/2018
5/7
Electronics Systems
R&D - Hortolândia
MQBA0
Author: Luis Gustavo Casteletti
Functional Manual
MAGNETI MARELLI
Version: 5.0 Date 15/08/2018
MQBA0
As consequence, the engine function remains enabled only if a correct transponder code is
detected within the pre-enable time. In all the others cases, the engine functions are inhibited
and the vehicle cannot be started.
and the vehicle cannot be started.
Access to safety-related functions and data of the immobilizer and of the engine control unit
– e.g. programming of a new transponder – is protected by a password function. Access to
these functions is only possible after correct entry of the Security Code which has been
programmed previously; this entry is possible via a tester (e.g. VAS Tool from VW).
these functions is only possible after correct entry of the Security Code which has been
programmed previously; this entry is possible via a tester (e.g. VAS Tool from VW).
This Security Code is documented in the so-called SECURITY CAR PASS which is in the
possession of the vehicle owner.
2.3 Frequency of Operation
The operating frequency of the immobilizer system is 125KHz.
High Speed
CAN bus
Line Field