Hi,
The B.s.i lives in the fusebox area, (inside car)
Heres alist of fuses, hope this helps if any, (As a guess with the car not being fitted with electric windows standard, you might have a Relay missing

)
If you have a D8. phase 1 406 this info is N/a to you so ignore, (Early phase 1 Dosent have a Bsi)
iwas guessing youve got a D9 based on the Fact you have Mentioned B.s.i. it wouid help to add More detail to your posts as to what model /age car youve got
you wouid get better response.
Fuses
Rating
Supply
Application
F1
Shunt
Ignition + ve
Airbags and seat-belts pre-tensioning ECU, BSI
F2
5A
Air temperature sensor for passenger compartment, heater panel
F3
10A
Instrument panel, brake lights switch, stop lamps, cruise controlsafety switch (brakes), cruise control override switch (clutch), cruise control switch.
F4
5A
BSI
F5
----
Free
F6
10A
+battery
ignition + ve
Engine management control unit
F7
15A
Radio amplifier JBL, alarm siren
F8
10A
Interior lights, boot light, multifunction display, navigation ECU, control unit for memorising seat and mirror positions, alarm LED
F9
5A
BSI
F10
15A
Radio
F11
10A
Separate fuse
Left brake light, third brake light
F12
10A
Right brake light
F13
20A
+ battery
One touch window ECU (driver)
F14
30A
Rear window lift relay, one touch electric window control unit (front, passenger, coupe)
F15
20A
Pre wired supply to towbar
F16
20A
Control unit for memorising seat and mirror positions, electric driver's seat
F17
20A
Electric passenger's seat
F18
10A
Separate fuse
BSI. Illumination: switches, heater panel, display unit, automatic transmission selector
F19
10A
Rear fog lights and warning lights
F20
-----
Free
F21
-----
Free
F22
10A
Acc + ve
Rain sensor, map reading lamp, courtesy lights, window switches (coupe), glove box light, vanity mirror, mirrors control board, electrocrome interior mirror, control unit for memorising seat and mirror positions.
F23A
20A
Acc + ve
Cigar lighter
F23B
20A
+ battery
Cigar lighter
F24A
-----
Acc + ve
free
F24B
-----
+ battery
free
F25
20A
Acc + ve
Wiper stalk, headlamp wash relay, radio
F26
----
Free
F27
5A
Built-in system interface (BSI), rear window lift relay, key lock (automatic gearbox)
F28
----
Free
Built-in system interface (BSI 1)
Fuses
Rating
Supply
Application
A
20A
Battery + ve
Central locking, dead locking
B
20A
Windscreen wiper
C
40A
Heated rear screen, heated mirrors
D
15A
Rear wiper
E
30A
Electric front windows, sun roof
F
15A
Supply to the multiplexed VAN network
Engine interface unit with 34 fuses. (BM 34)
Fuses
Rating
Supply
Application
MF1
60A
+ Battery
BSI
MF2
20A/40A/60A
Engine cooling system
MF3
40A/60A
Engine cooling system
MF4
30A
Engine running relay, heated seats
MF8
50A
Fuse box BH28
MF9
60A
BSI
MF10
30A
Light switch supply, signaling
MF11
50A
ABS control unit
MF12
50A
Anty theft contact power supply
MF13
50A
Anty theft contact power supply
MF15
?
ABS control unit
MF16
-----
MF17
-----
F5
15A
Horn
F6
15A
BSI
F7
10A
Termostats, fan relay
F14
10A
Headlight wash timer, diagnostic socket,
F18
-----
Separate fuse
free
F19
-----
free
F20
15A
Ignition + ve
Variable power steering ECU, variable suspension ECU
F21
10A
+ battery
Free
F22
-----
Free
F23
10A
Ignition +ve
ABS control unit
F24
10A
Vehicle speed sensor, engine injection double relay, injection ECU, water in diesel sensor
F25
10A OR
15A
+ve after double relay
•Inertia switch, fuel pump (except ESJ94 engine)
•Fuel pump (ES9J4 engine)
F26
30A
Battery +
Engine injection double relay, engine fuel system, fuses 25 - 28 - 34 (BM34)
F27
30A
Engine injection double relay, engine fuel system, fuses 25 - 28 - 34 (BM34)
F28
10A
+ve after double relay
Free
F29
30A
+ battery
Pulsair relay
F30
10A
Front left fog lamp and warnign light on instrument panel
F31
10A
Front right fog lamp
F32
10A
Ignition + ve
Pressostat, coolant thermostat, eigine coolant level sensor, diagnostic socket, reversing lamps, fan relay, relay protection switch unit BCP3 (DW10 engine)
F33
10A
Automatic transmission ECU, selector lever position switch, shift-lock relay
F34
10A OR
15 A
+ve after double relay
- Oxygen sensor heating resistor, cruise control switch (XU engine)
- Engine fuel system, cruise control switch (DW engine)