Workshop Manuals Factory service & repair Lancia
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Lancia Thesis Factory Service Manual (2002-2009)16 · Electrical equipment
16 · Electrical

Exterior lights control

Make
Lancia
Model
Thesis Factory Service Manual
Year
2002–2009
Section
Exterior lighting › Exterior lights control
Electrical equipmentExterior lights control

EXTERIOR LIGHTS CONTROL

COMPOSITION

The control panel for the exterior lights is located on the left side of the dashboard.

EXTERIOR LIGHTS CONTROL
  • A - FRONT VIEW
  • B - REAR VIEW
  • C - Exterior lights control connector
  • D - Interior lights dimmer connector
  • E - Exterior lights dimmer connector
  • 1 Light control knob
  • 2 Front fog light control button
  • 3 Rear fog lamp control button
  • 4 Interior lights dimmer
  • 5 Exterior lights dimmer

The CLE (exterior lights control) is connected to the dashboard wiring.

EXTERIOR LIGHTS CONTROL
Connector C (18-way)
PINFUNCTION
1Earth
2Not connected
3Not connected
4Side lights control negative signal
5Dipped headlamps control negative signal
6Not connected
7Negative signal from rear fog lamp control button
8Negative signal from fog lights control button
9Main beam headlamp enablement negative signal for steering column switch unit (connection with PA5)
10Ideogram control dimmed supply
11Parking lights control negative signal
12Not connected
13Not connected
14Not connected
15Not connected
16Not connected
17Not connected
18Not connected
EXTERIOR LIGHTS CONTROL
Connector D (6-way)
PINFUNCTION
1INT from fuse 49
2Ideogram light dimmed supply
3Lighting adjustment analogue signal to NQS
4Earth
5Not connected
6Not connected
EXTERIOR LIGHTS CONTROL
Connector E (6-way)
PINFUNCTION
1+dipped headlamps from fuse 13
2Ideogram light dimmed supply
3Dusk sensor setting adjustment analogue signal to NIT (Connect)
4Earth
5Not connected
6Not connected

SPECIFICATIONS

In addition to the control for the exterior lights, the panel also houses two dimmers. One for adjusting the intensity of the instrument panel light, the other for adjusting the setting of the dusk sensor.

OPERATION

Exterior lights control

EXTERIOR LIGHTS CONTROL
There are five positions for the knob for controlling the exterior lights as illustrated.
PINFUNCTION
1All the lights are off
2Side lights and no. plate lights on
3Dipped headlamps on
4Parking lights on
5If this position is selected, the lights come on or go off according to the strategies adopted by the dusk sensor

DUSK SENSOR

Depending on the setting selected by the user (if there is an AUTO control for the lights control knob) the dusk sensor adjusts the automatic switching on of the dipped headlamps and side lights.

The sensor setting can be adjusted using the dimmer 5.

Control and operation

To be carried out on the vehicle, complete with battery.

Position the vehicle in a brightly lit area (for example with a halogen lamp directed on the windscreen in the area of the sensor).

Place the selector in the "automatic" position and check that the lights remain off.

Obscure the sensor with a black screen and check that the lights come on without a noticeable delay.

Remove the black screen from the sensor and check that the lights go out with a delay of a few seconds.

RAIN SENSOR

If the rain sensor (which is in one piece with the dusk sensor) controls the switching off of the side lights and the dipped headlamps (and obviously with the exterior lights knob in the AUTO position) the bulb switching off strategy is as follows:

  • dipped headlamp switching off: when the command is received from the dusk sensor
  • side lights switching off: 10 seconds after the switching off of the dipped headlamps.

Control and operation

To be carried out on the vehicle, complete with battery.

Place the steering column switch unit wiper lever from the off position to the "automatic" position (the sensor setting ring nut, corresponding to the selector for the intermittent speed on vehicles without an automatic sensor, can be in any position).

Check that the automatic operation of the wipers is activated by the rain sensor (when the glass is dry it carries out a reference wiping cycle).

Wet the windscreen slightly in the area of the sensor (with a spray/spone) and check that the wipers are activated and that when the glass in the area of the sensor is dry once again, the wipers are deactivated.

EXTERIOR LIGHTS CONTROL
  • A - Fastening tabs
  • B - Connector

Connector B (3-way)

PINFUNCTION
1battery +
2earth
3signal

Parts & tools for this job For 2002 Lancia Thesis

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