Headlamp unit, xenon (663FL/FR)
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Headlamp unit, xenon (663FL/FR)
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Left headlamp (663FL)
and
Right headlamp (663FR)
respectively
The headlamp is comprised of the following components:
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Left headlamp
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Right headlamp
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Xenon headlamp lamp (11aFL)
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Xenon headlamp lamp (11aFR)
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Main beam lamp (11FL), (EU)
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Main beam lamp (11FR), (EU)
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LED, front parking light (13FL)
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LED, front parking light (13FR)
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Front direction indicators (27FL)
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Front direction indicators (27FR)
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Ignition transformer (663a)
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Ignition transformer (663a)
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Xenon lamp ballast (663b)
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Xenon lamp ballast (663b)
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Solenoid, main beam dimming (665FL)
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Solenoid, main beam dimming (665FR)
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LED, side marker light, front (234FL)
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LED, side marker light, front (234FR)
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Lamp, DRL (758FR)
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Lamp, DRL (758FL)
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Additional with AHL
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Additional with AHL
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Headlamp levelling motor (280FL)
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Headlamp levelling motor (280FR)
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Additional with AFL
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Additional with AFL
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Headlamp control module (682)
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Headlamp control module (682)
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The function of the headlamps is to provide main beam, dipped beam, parking lights, direction indicators and side marker lights to the front of the car and to adjust the beam longitudinally and laterally.
The headlamp housing contains bulbs for direction indicator, dipped beam, main beam, and LEDs for parking light and side marker light. The light sources are protected by one clear plastic lens. Also included in the headlamp module are stepper motors for headlamp levelling and lateral control, position sensors for lateral adjustment, control module for AFL control, ballast, ignition transformer and a solenoid for dimming.
There is a screen in front of the dipped beam bulb, the position of which can be adjusted with a control to change the dipped beam light image between right-hand and left-hand traffic.
The direction indicator is located farthest out towards the long side of the car in a reflector. The amber-coloured bulb is 21 W.
A projector headlamp is located in the centre. It has a light opening diameter of 70 mm. The projector headlamp is used for both main and dipped beam. A dimming screen drops down when main beam is to be used. The bulb is a discharge bulb of type D1S 35 W. The igniter is built into the bulb socket. The ballast of the discharge bulb is located at the bottom of the headlamp housing.
Another headlamp is located further in toward the centre of the car. It is used as a supplement for main beam (H7 55 W) or as a "Daytime Running Light", DRL, (4157K) for the US/CA/MX markets.
The upper section of the light cluster contains an LED which is used for the parking light. On the side are three LEDs fitted as a side marker light.
In cars with AHL the beam length is controlled by a stepper motor which is controlled from the AHL control module.
In cars with AFL, the AFL control module communicates with the headlamp control module that controls the stepper motors for beam length and lateral adjustment settings. A sensor for controlling lateral movement is also connected to the headlamp control module
Pin No.
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Signal type
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Description
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1
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Ground
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Headlamp's ground
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2
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Power supply B+
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US/CA/MX:
Xenon lamp screening solenoid (665)
Others:
H7 lamp (11) + solenoid
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3
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Power supply B+
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Xenon lamp power supply (663b+663a+11a)
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4
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Power supply B+
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Parking light power supply
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5
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Power supply B+
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Direction indicator power supply
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6
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AHL:
Control
AFL:
Power supply B+
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AHL:
Control lead for automatic headlamp levelling stepper motor, from AHL pin 13/11 (LH/RH)
AFL:
Power supply B+ to headlamp control module
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7
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AHL:
Control
AFL:
Communication cable
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AHL:
Control lead for automatic headlamp levelling stepper motor, from AHL pin 15/17 (LH/RH)
Communication with AFL control module (752)
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8
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AHL:
Control
AFL:
Ground
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AHL:
Control lead for automatic headlamp levelling stepper motor, from AHL pin 12/18 (LH/RH)
AFL:
Ground for headlamp control module
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9
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AHL:
Control
AFL:
Ground
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AHL:
Control lead for automatic headlamp levelling stepper motor, from AHL pin 14/16 (LH/RH)
AFL:
Ground for Xenon lamp screening solenoid (665)
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10
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Ground
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Ground for ballast (663b)
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11
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US/CA/MX:
Power supply B+
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Power supply, side marker light
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12
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US/CA/MX:
Power supply B+
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Power supply, DRL lamp
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•
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Main beam/dipped beam/DRL, left, market US/CA/MX
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•
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Main beam/dipped beam/DRL, right, market US/CA/MX
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•
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Main beam/dipped beam, left, other markets
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•
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Main beam/dipped beam, right, other markets
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•
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Front left parking light (13FL)
Lamp, side marker light, front, left (234FL), market US/CA/MX
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•
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Front right parking light (13FL)
Lamp, side marker light, front, right (234FR), market US/CA/MX
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•
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Front left direction indicator (27FL)
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•
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Front right direction indicator (27FR)
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•
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Headlamp levelling motor, left (280FL) with AHL
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•
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Headlamp levelling motor, right (280FR) with AHL
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•
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Headlamp control module, left (682FL) with AFL
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•
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Headlamp control module, right (682FR) with AHL
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