GX-201KEF2/LEF2/REF2/SEF2
SECURITY CODE (GX-201REF2)
The audio security system has been set for GX-201REF2As a result of confirmation, if the code is judged to be au-
and GX-201RHF2.thentic, the system goes into normal operation. However, if
the code is not judged to be authentic, then the system goes
I Security Functioninto the Security mode.
Security is released when an agreement is found between
the data from the immobilizer, which is sent from the vI Security Modeehicle,
and the data that are set beforehand.The system goes into the Security mode when the Immobi
The interrelationship in the security system is shocode is not judged to be authentic when it is compared withwn in the
chart below.the Security code registered in the audio unit. When this hap-
BU ONpens, the unit can be operated for an hour. After the elapse of
an hour, the power on the unit is cut off and operation is force-Code confirmation modeRegistrationNon-registration
fully stopped.
NGAlso, in the Non-registration mode, if an hour elapses, theConfirmation modeNon-registration mode
system will go into the Security mode. In the Security mode,OK
Normal operation Security modeRegistration modethe power on the unit is cut off and operation is forcefully
stopped.
Delete modeNote : When working on a unit to repair it, the repair would
should be conducted in the one hour effective time. After theRe-Registration
elapse of an hour, the power on the unit is cut off. If the power
is put on again, another hour will be given to operate on.
I Code Confirmation Mode
This mode is for judging whether the Security code is regis-Y Conditions of the audio unit during the Security mode
tered or not in the audio unit.Power off.
When the unit is reset, the operation will start from the Cur-Display light off.
rent mode.Keys do not work (Except the EJECT Key).
Y The registration condition of the Security code can beAudio power off (No voice output).
grasped using the E2PROM.Switching on TV sources not possible. ( Key operation from
Y The Security code is not registered or when abnormalitiesthe monitor not possible.)
detected with E2PROM, the system will move to Non-reg-Voice interruption/switching from NAVI and hands-free unit
istration mode.not possible.
Y When registering a Security code, the system will moIn the Securve toity mode, the display is not lighted and when
Confirmation mode.there is an input from any of the key, OSECURITY� will be
displayed.
I Non-Registration Mode
Thus system will move to the Non-registration modeI Delete Mode, when
the Security code is not registered for an audio unit.The system goes in the Delete mode, when the ORequest-
Even if the Security code is not resisted, operation is pos-ing Delete� condition of the Integrated ECU operating condi-
sible for an hour. However, there is a certain limitations placedtion signal from the Integrated ECU is obtained by the A/C
on the operation. Using this time, production and a vECU via loariationw-speed CAN into the gateway and it is sent to the
on the products will be conducted.audio unit via UART.
The Delete mode is positioned as a Test mode and detailed
I Confirmation Modeinput methods are not disclosed.
The system will automatically go into the Confirmation modeThe Secur, ity code recorded into the E2PROM in the Regis-
when the Security code is confirmed to be adjusted to in thetration mode and Re-registration mode is cleared in the De-
Code confirmation mode.lete mode and non-registration condition is obtained.
When the A/C ECU is obtained Through CAN from the Inte-Note : When a linked product is repaired, the security code
grated ECU on the vehicle side, it goes into the gatem ust be deleted when the repair wway. Theork is completed.
Immobi code sent to the audio unit by UART and the SecurFor GX-201, in order to maintain the securityity, deletion is
code registered on the audio unit is compared.only effective when selection monitor is used.
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ACEC
