Diagnostic Codes - VESPA 946 E4 EMEA 2021 Manual

Electrical system
- Insert the MASTER key again switching to
««ON» for 2 seconds.
The maximum time to change keys is 10 seconds.
A maximum of 3 service keys can be programmed
at one time.
The times and the procedure must be followed ex-
actly, otherwise repeat from the beginning. Once
the system has been programmed, the master key
transponder is strictly matched with the control
unit. With this link established, it is now possible to
encode new service keys, in the event of losses,
replacements, etc.
Each new programming deletes the previous one
so, in order to add or eliminate keys, you must re-
peat the procedure using all the keys you intend
to keep using. If a service key becomes uncoded,
the efficiency of the high voltage circuit shielding
must be thoroughly inspected. In any case it is ad-
visable to use resistive spark plugs.

Diagnostic codes

The Immobilizer system is tested each time the
Ignition switch is turned from «OFF» to «ON».
During this diagnosis phase a number of control
unit statuses can be identified and various light
codes displayed. Regardless of the code transmit-
ted, if at the end of the diagnosis the LED remains
off permanently, the ignition is enabled. If, howev-
er, the LED remains on permanently, it means the
ignition is inhibited:
1. Previously unused control unit - key inser-
ted: a single 2 second flash is displayed, after
which the LED remains off permanently. The keys
can be stored to memory, the vehicle can be star-
ted but with a limitation imposed on the number of
revs.
ELE SYS - 94
Vespa 946 E4-E5 EMEA-USA-ASIA (2021-)