Alfa Romeo 159 3.2 JTS Fino a 12/05 – HEATED REAR WINDSCREEN AND DOOR MIRROR DEFROSTING – – Station Wagon – WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION – WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION

WIRING DIAGRAM - HEATED REAR WINDSCREEN AND DOOR MIRROR DEFROSTING - Alfa Romeo 159 3.2 JTS Fino a 12/05

DEMISTING REARSCREEN AND REAR VIEW MIRRORS - WIRING DIAGRAM Alfa Romeo 159 3.2 JTS Fino a 12/05

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COMPONENTS - HEATED REAR WINDSCREEN AND DOOR MIRROR DEFROSTING - Alfa Romeo 159 3.2 JTS Fino a 12/05


B002	JUNCTION UNIT UNDER DASHBOARD
B099	MAXIFUSE BOX ON BATTERY
C015	DASHBOARD EARTH, DRIVER'S SIDE
C020	PASSENGER SIDE DASHBOARD EARTH
C032	REARSCREEN EARTH
D021	DASHBOARD/AIR CONDITIONING-HEATER COUPLING
D030	DRIVER'S FRONT DOOR COUPLING
D031	PASSENGER FRONT DOOR COUPLING
D085	REAR/TAILGATE COUPLING
M001	BODY COMPUTER
M066	DRIVER'S DOOR CONTROL UNIT (NPG)
M067	PASSENGER DOOR CONTROL UNIT (NPP)
M070	CLIMATE CONTROL SYSTEM CONTROL UNIT
M089	STEERING LOCK CONTROL UNIT (NBS)
P055	HEATED REARSCREEN
P060	DRIVER'S DOOR MIRROR
P061	PASSENGER DOOR MIRROR

COMPONENT LOCATION - HEATED REAR WINDSCREEN AND DOOR MIRROR DEFROSTING - Alfa Romeo 159 3.2 JTS Fino a 12/05

DEMISTING REARSCREEN AND REAR VIEW MIRRORS - COMPONENT LOCATION Alfa Romeo 159 3.2 JTS Fino a 12/05

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B002	JUNCTION UNIT UNDER DASHBOARD
B099	MAXIFUSE BOX ON BATTERY
C015	DASHBOARD EARTH, DRIVER'S SIDE
C020	PASSENGER SIDE DASHBOARD EARTH
C032	REARSCREEN EARTH
D021	DASHBOARD/AIR CONDITIONING-HEATER COUPLING
D030	DRIVER'S FRONT DOOR COUPLING
D031	PASSENGER FRONT DOOR COUPLING
D085	REAR/TAILGATE COUPLING
M001	BODY COMPUTER
M066	DRIVER'S DOOR CONTROL UNIT (NPG)
M067	PASSENGER DOOR CONTROL UNIT (NPP)
M070	CLIMATE CONTROL SYSTEM CONTROL UNIT
M089	STEERING LOCK CONTROL UNIT (NBS)
P055	HEATED REARSCREEN
P060	DRIVER'S DOOR MIRROR
P061	PASSENGER DOOR MIRROR

DESCRIPTION - HEATED REAR WINDSCREEN AND DOOR MIRROR DEFROSTING - Alfa Romeo 159 3.2 JTS Fino a 12/05

In the case of poor visibility it is possible to activate the demisting of the rearscreen and the exterior rear view mirrors.The heating resistances for these components absorb a considerable amount of energy and are therefore controlled and, possibly, deactivated after they have been working for a certain length of time: the demisting is subject to a delay timer, managed by the Body Computer, according to the following logic:- TEG inserted, starting excluded (INT/A);- engagement signal coming from the special button in the climate control system control panel.Under these circumstances the resistances remain supplied for a maximum of 20 minutes, then the supply is cut off.The supply is cut off in the following conditions:- TEG extracted (key-off);- disengagement signal from the button;- battery voltage below 8.5 V;- after the first 15 minutes of operation if the engine speed is below 960 rpm.With the defrosting on the warning light in the climate control system controls also comes on.The activation timer (20 minutes) is set again each time the button is operated.The climate control system control unit logic also intervenes with the "MAX-DEF" command in accordance with the logic described previously.The "MAX-DEF" function lasts for 3 minutes starting from when the engine temperature exceeds a certain limit.767the deactivation of the MAX-DEF control only causes the switching off of the heated rear windscreen if the command to switch it on came from the MAX-DEF button; if, on the other hand, the command was given via the heated rear windscreen button, it remains on)The rearscreen defrosting circuit is controlled by the heated rear windscreen relay and protected by a specific fuse, located in the junction unit under the dashboard. This circuit is controlled by the logic described above directly by the Body Computer.The defrosting circuit for the door mirrors, on the other hand, is protected by another fuse in the junction unit under the dashboard and is controlled by the door control units, in accordance with the logic transmitted by the Body Computer via the CAN.

FUNCTIONAL DESCRIPTION - HEATED REAR WINDSCREEN AND DOOR MIRROR DEFROSTING - Alfa Romeo 159 3.2 JTS Fino a 12/05

The heated rear windscreen relay T11, located in the junction unit under the dashboard B2, controls the engagement of the heated rear windscreen P55 defrosting resistances via the line protected by fuse F40 of junction unit B2.The coil for relay T11 receives an ignition-operated power supply (INT/A) and is energized by an earth signal coming from the Body Computer M1 - pin 6 of connector F; this signal is sent on the basis of the previously illustrated control logic and in the presence of the heated rear windscreen engagement command or through the MAX-DEF function coming via the CAN from the climate control system control unit M70.The engagement of the defrosting resistances for the door mirrors P60 and P61 is controlled by the control units for the driver''s door M66 and the passenger door M67.Control units M66 and M67 receive a supply - at pin 5 of connector C and 11 of connector A - from the line protected by fuse F41 of junction unit under the dashboard B2 .