AUTOMOTIVE ELECTRICIANS

Fiat STILO 1.4 16v Da 05/2005 — REAR FOG LAMPS — — Station Wagon — WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION — WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION


Wiring diagram - REAR FOG LAMPS - Fiat STILO 1.4 16v Da 05/2005





Components - REAR FOG LAMPS - Fiat STILO 1.4 16v Da 05/2005



Component codeNameAssembly reference
B2 Junction unit under dashboard
C15 Facia earth, driver''s side-
C30 Left rear earth-
C31 Rear right earth-
E50 Instrument panel
F30 Left. rear( light cluster on fixed part)
F35 Left rear light cluster (moving part on boot lid)-
F35 Left rear light cluster (moving part on boot lid)
F36 Right. rear light cluster on moving( part of boot lid)-
F36 Right. rear( light cluster on moving part of boot lid)-
F36 Right. rear( light cluster on moving part of boot lid)
H90 Switch control unit

Location of components - REAR FOG LAMPS - Fiat STILO 1.4 16v Da 05/2005





Components - REAR FOG LAMPS - Fiat STILO 1.4 16v Da 05/2005



Component codeNameAssembly reference
B2 Junction unit under dashboard
C15 Facia earth, driver''s side-
C30 Left rear earth-
C31 Rear right earth-
E50 Instrument panel
F30 Left. rear( light cluster on fixed part)
F35 Left rear light cluster (moving part on boot lid)-
F35 Left rear light cluster (moving part on boot lid)
F36 Right. rear light cluster on moving( part of boot lid)-
F36 Right. rear( light cluster on moving part of boot lid)-
F36 Right. rear( light cluster on moving part of boot lid)
H90 Switch control unit

Description - REAR FOG LAMPS - Fiat STILO 1.4 16v Da 05/2005


The vehicle is equipped with two bright rear fog lamps located in the centre section of the rear light clusters (on the boot).The rear fog lamps are activated via the button on the left on the panel; when the lights are on, the warning light in the instrument panel comes on.The switching on of the rear fog lamp is managed by the Body Computer: it is activated in the following conditions:go ahead signal with key in ON position (INT);signal coming from the switch;side lights on signal.headlamps signal (dipped or main beam) or fog lights on.If one of the go ahead signals is missing, the button must be pressed again in order to switch the rear fog lamps on.The correct operation of the lights is controlled by the rear fog lamp ''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)21 W bulb replaced with a 5 W bulbIf one of the situations described above is detected, the Body Computer notifies the CAN of the failure state: the special ''lights failure'' warning light in the instrument panel comes on and, at the same time, the information is shown on the display.

Functional description - REAR FOG LAMPS - Fiat STILO 1.4 16v Da 05/2005


The fog lights activated signal reaches pin 35 of connector G of M1 from the control button on switch panel H90 .The side lights activated signal is sent to pin 28 of connector G of the Body Computer M1 from the steering column switch unit H5 .The dipped headlamps activation signal is sent to pin 4 of connector I of the Body ComputerThe fog lights activation signal reaches pin 1 of connector I of the Body Computer M1The ''ignition ON'' signal (INT) for the switch H1 reaches the underdashboard control unit B2 at pin 11 of connector H and from there moves on to the Body Computer M1 (pin 9 of connector F).The Body Computer M1 controls the supply of the rear fog lamp F35 (left) F36 (right), located on the boot lid, from pin 31 of connector E and 20 of connector D.The Body Computer M1 is connected, via the CAN line, to the instrument panel E50 to manage the fog lamps on warning light and the light failure warning light in case of a fault.

Junction unit under dashboard



B2A



B2A



B2A



B2A



B2B



B2C



B2D



B2D



B2D



B2D



B2E



B2G



B2H



Facia earth, driver's side



C15A



C15B



C15C



C15C



Left rear earth



C30



C30



C30



C30



Rear right earth



C31



C31



Instrument panel



E50A



E50B



E50C



Left rear. light cluster (fixed section)



F30



F30



F30



F30



Left rear light cluster (moving part on boot lid)



F35



F35



.Right( rear light cluster on moving part of boot lid)



F36



F36



Switch control unit



H90A



H90B


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