The CODE unit inside Body Computer
M1
is supplied from
the battery from the line of maxifuse CPL
B99
- pin 18 of
connector F, while the ignition-operated power supply (INT) reaches
pin 9.
The line leading from pin 29 of connector
A is a serial line W leading to engine management unit
M10 -
which is responsible for the communication required for identifying
the key and exchanging codes.This communication takes place via the CAN
network in the case of normal operation.
Body Computer
M1
is linked to instrument
panel
E50
, via the CAN line to manage the CODE failure warning
light.
The aerial of CODE device
P91
is
connected via two leads to the CODE unit of
M1
, at pins
4 and 5 of connector A; The aerial is located coaxially on the ignition
switch so that it can register key insertion and activation.
The various aerials in the car identify
the presence of a CID inside the passenger compartment and inform
the Passive Entry control unit
M64;
this sends start-up
enablement to the Body Computer
M1
See
E7018
PASSIVE ENTRY
via
the CAN network.