Via the aerial for the Fiat-CODE system
P091, the body computer
node M001 receives, at pins 10 and 19 of connector H, the code of
the inserted key, and checks that it is valid by comparing it with
those in its memory.
Functional description
If the code is correct, the body computer
node
M001, via the B-CAN , enables at pins 58 and 59 of connector
B the control unit M010 to start the engine when required and, still via
the B-CAN, controls the switching on of the warning lights on the
instrument panel E050.
The engine management control unit
M010
(pin 66 connector B) and the body computer node M001 (pin 13 connector
D) are connected via specific serial line 'W';
this line has
a CODE system recovery function if there are problems in the B-CAN
line.
Functional description
The system is only activated
if the ignition is on; the signal reaches the body computer node
at pin 1, connector L (for further details
See E1010 SUPPLY
).