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Alfa Romeo GT 3.2 V6 – BRAKE LIGHTS – – WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION – WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION

Wiring diagram - BRAKE LIGHTS - Alfa Romeo GT 3.2 V6

BRAKE LIGHTS - WIRING DIAGRAM Alfa Romeo GT 3.2 V6

Components - BRAKE LIGHTS - Alfa Romeo GT 3.2 V6

Component code	Name	Assembly reference
B1	JUNCTION UNIT	-
B2	JUNCTION UNIT UNDER DASHBOARD
B5	MAXI FUSE-1 BOX	-
B99	MAXIFUSE BOX ON BATTERY
C15	FACIA EARTH, DRIVER''S SIDE	-
C30	LEFT REAR EARTH ( REAR )	-
C32	REARSCREEN EARTH	-
C38	EARTH ON TUNNEL	-
D85	TAILGATE REAR SEAL/	-
D85	Tailgate rear coupling	-
E50	INSTRUMENT PANEL
F30	REAR LIGHTS CLUSTER LEFT (FIXED PART)
F31	RIGHT. REAR LIGHT CLUSTER (FIXED PART)
F40	ADDITIONAL TAIL-LIGHT (''THIRD BRAKE LIGHT'')
H1	IGNITION SWITCH
I30	BRAKE PEDAL SWITCH ( FRONT )
M1	BODY COMPUTER

Location of components - BRAKE LIGHTS - Alfa Romeo GT 3.2 V6

BRAKE LIGHTS - LOCATION OF COMPONENTS Alfa Romeo GT 3.2 V6

Components - BRAKE LIGHTS - Alfa Romeo GT 3.2 V6

Component code	Name	Assembly reference
B1	JUNCTION UNIT	-
B2	JUNCTION UNIT UNDER DASHBOARD
B5	MAXI FUSE-1 BOX	-
B99	MAXIFUSE BOX ON BATTERY
C15	FACIA EARTH, DRIVER''S SIDE	-
C30	LEFT REAR EARTH ( REAR )	-
C32	REARSCREEN EARTH	-
C38	EARTH ON TUNNEL	-
D85	TAILGATE REAR SEAL/	-
D85	Tailgate rear coupling	-
E50	INSTRUMENT PANEL
F30	REAR LIGHTS CLUSTER LEFT (FIXED PART)
F31	RIGHT. REAR LIGHT CLUSTER (FIXED PART)
F40	ADDITIONAL TAIL-LIGHT (''THIRD BRAKE LIGHT'')
H1	IGNITION SWITCH
I30	BRAKE PEDAL SWITCH ( FRONT )
M1	BODY COMPUTER

Description - BRAKE LIGHTS - Alfa Romeo GT 3.2 V6

The brake lights are located at the rear in the side lights and in the central third brake light and consist of 10 separate bulbs.These are operated whenever the brake pedal is pressed, by means of a switch on the pedal itself.767the switch fitted on the pedal assembly consists of two contacts which supply two signals: the first which is the ''N.A.'' type recognizes the position of the brake pedal when it differs from the rest position; the second, which is the ''N.C.'' type, recognizes the brake pedal in the rest position.The switching on of the brake lights is managed by the Body Computer.The control function is activated by the go ahead signals from the key in the ON position (INT) and the contact for the above mentioned switch.The ''N.A.'' switch information is sent via the CAN, in particular to the engine management control unit and the ABS control unit.The correct operation of the lights is controlled by the brake lights ''check'' function: the following are checked:open circuit (bulb missing or wiring broken) which can be diagnosed without a commandshort circuit to earth (bulb short circuit or wiring short circuit to earth)short circuit to Vbatt (wiring short circuit to Vbatt)The continuity of the fuse protecting the bulbs is also checked.If one of the situations described above is detected, the Body Computer notifies the CAN of the failure state: a special ''lights failure'' warning light comes on in the instrument panel and, at the same time, the information is shown on the display.

Functional description - BRAKE LIGHTS - Alfa Romeo GT 3.2 V6

The supply for the switchI30is controlled by the ignition (INT) from the line for fuse F37 of the underdashboard control unitB2: when the brake pedal is pressed, the switch closes and sends the ''N.A.'' signal to the Body ComputerM1, pin 2 of connector F.The ''ignition ON'' signal (INT) for the switch H1 reaches the underdashboard control unitB2at pin 11 of connector H and from there moves on to the Body ComputerM1(pin 9 of connector F).The Body ComputerM1 controls the supply for the brake lights in the light clusters F30 (left) F31A (right) from pins 32 and 33 of connector E.The Body ComputerM1is connected, via the CAN line, to the instrument panelE50to manage the ''lights failure'' warning light if there is a failure in the circuit.The switch I30 directly controls the centre rear light cluster F40 via the underdashboard control unit B2, pin 5 of connector D