EXTERIOR LAMPS




CONSTRUCTION DIAGRAM









  • As for the headlamp assembly, projector type low-beam has been adopted. It employs the four-lamp integrated with the front turn-signal lamp and position lamp.
  • Uncut lenses have been adopted to the headlamp lens for an improved appearance.
  • The discharge headlamp for low-beam provides a much better view than ordinary halogen lamps. <Standard: Vehicles for Russia and 3800, Option: Except for Russia and 3800)>
  • For the low-beam of the headlamp, the headlamp manual levelling system <Vehicle with halogen headlamp> (Refer to .) and the headlamp automatic levelling system <Vehicle with discharge headlamp> (Refer to .) have been adopted so that the height adjustment of the optical axis can be performed depending on the vehicle posture.
  • The front fog lamp with no-cut lens has been adopted for better appearance. <Standard: GLS, Option: GLX>
  • Two types of the side turn-signal lamp have been established: the one attached to the fender panel <GLX> and the one integrated into the door mirror <Standard: GLS, Option: GLX>.
  • The approach lamp which illuminates the foot area when getting on/off has been integrated into the door mirror. <Standard: GLS, Option: GLX> has been established.
  • The rear combination lamp assembly are integrated with the stop/tail lamp, back-up lamp and turn-signal lamp.
    note When the tail and turn lamp assembly which is optionally available for vehicles for England has been adopted, the turn-signal lamp inside the rear combination lamp assembly will not be installed.
  • For the rear bumper, the tail and turn lamp assembly integrated with the tail lamp and turn-signal lamp has been attached. <Option: vehicles for England>
  • On the upper area of the tailgate window glass, the high-mounted stop lamp has been attached.
  • To the back door licence plate garnish, the licence plate lamp and rear fog lamp have been installed.
  • The lighting system is provided with auto lamp function (Refer to ), headlamp automatic-shutdown function and daytime running lamp function (Refer to ).
  • For the flasher timer function of turn-signal, the comfort flasher function has been adopted to improve the operability when changing lanes. When the turn-signal lamp switch (lighting switch) is operated for a short time, this function flashes the turn-signal lamp of the operated direction three times (Refer to ).

Specifications


Item
Headlamp assembly vehicles without discharge headlamp
High-beam W (Halogen headlamp)
65 (H9)
Low-beam W (Halogen headlamp)
55 (H11)
Position lamp W
5 (W5W)
Front turn-signal lamp W
21 (WY21W)
Headlamp assembly vehicles with discharge headlamp
High-beam W (Halogen headlamp)
65 (H9)
Low-beam W (Discharge headlamp)
35 (D2S)
Position lamp W
5 (W5W)
Front turn-signal lamp W
21 (WY21W)
Front fog lamp W
55 (H11)
Rear fog lamp W
21 (W21W)
Side turn-signal lamp
Fender panel attachment type W
5 (W5W)
Door mirror incorporated type
LED type
Approach lamp W
5 (W5W)
Rear combination lamp assembly
Stop/tail lamp W
21/5 (W21/5W)
Back-up lamp W
21 (W21W)
Rear turn-signal lamp W
21 (WY21W)
Tail and turn lamp assembly <Option: vehicles for England>
Tail lamp W
5 (W5W)
Rear turn-signal lamp W
21 (WY21W)
High-mounted stop lamp
Vehicles for Europe (Except 3800)
LED type
Vehicles for Russia and 3800 W × quantity
18 (W16W) × 3
Licence plate lamp W
5 (W5W)
note The brackets ( ) show the bulb type.

HEADLAMP MANUAL LEVELLING SYSTEM







RELATIONSHIP BETWEEN THE SWITCH POSITIONS AND THE NUMBER OF PASSENGERS/LOADS



<SHORT WHEELBASE>
Switch position
0
2
3
4
Passenger and load








One or two passengers
Five passengers
Five passengers and heavy loads
Driver and heavy loads

<LONG WHEELBASE>
Switch position
0
1
2
3
4
Passenger and load










One or two passengers
Four passengers (front seat and third seat)
Seven passengers
Seven passengers and heavy loads
Driver and heavy loads
note Each switch position is for reference. In each switch position, when the headlamp beam is too high, turn the switch to one-level higher position.

OPERATION




1.
2.
3.

HEADLAMP AUTOMATIC LEVELLING SYSTEM




FUNCTION



Vehicle condition
Control content
When parking
The headlamp automatic levelling-ECU calculates the vehicle pitch angle from the height sensor values according to the change in load resulting from getting on/off or loading/unloading to control the beam direction.
When driving at a constant speed
When a vehicle starts on curb, the travelling vehicle posture changes from the posture during parking, so that the beam direction changes. To control the improper beam direction caused by such vehicle posture change, the headlamp automatic levelling-ECU calculates the vehicle pitch angle based on the average of height sensor values obtained for 12 seconds after the vehicle speed becomes constant. This beam direction control while driving at a constant speed is performed only once between a vehicle stop and the next stop. If driving is started at a constant speed on the gravel or rough road, to prevent unnecessary control resulting from detection of road uneven surface, the beam direction control is launched after the driving speed becomes constant on pavement.

CONSTRUCTION DIAGRAM





SYSTEM COMPONENT AND FUNCTION


Parts name
Functional description
Column switch (lighting switch)
When the lighting switch is set to the headlamp position, the headlamp relay (LO) inside the front-ECU turns ON to transmit the signal to the headlamp automatic levelling-ECU.
Front-ECU
Height sensor (front)
Detects the elongation/contraction of the front suspension and transmits the signal to the headlamp automatic levelling-ECU.
Height sensor (rear)
Detects the elongation/contraction of the rear suspension and transmits the signal to the headlamp automatic levelling-ECU.
Vehicle speed sensor
Transmits vehicle speed signals to the headlamp automatic levelling-ECU.
Headlamp assembly (integrating motor)
Drives the headlamp reflector by receiving signals from the headlamp automatic levelling-ECU.
Headlamp automatic levelling warning lamp
Located in the combination meter. Lights up for warning when an abnormality occurs in the headlamp automatic levelling system.
Headlamp automatic levelling-ECU
Controls the motor integrated in the headlamp assembly based on the signals form switches and sensors to control the beam direction according to the vehicle posture.
Diagnosis connector
Outputs diagnosis codes.

SYSTEM BLOCK DIAGRAM





FAIL-SAFE FUNCTION


Trouble spot
Trouble condition
Headlamp automatic levelling warning lamp
Countermeasures for trouble
Height sensor
Open or short circuit
ON
Control stop
Vehicle speed signal
Open or short circuit
-
Continues control when parking
Motor (integrated in headlamp assembly)
Open circuit
-
Control stop
Short
ON
Control stop
Headlamp automatic levelling-ECU
Open or short circuit
-
Control stop
ECU is out of control
-
Program reset by ECU self-diagnosis
Headlamp signal
Open or short circuit
-
Control stop

AUTO LAMP FUNCTION





  • The auto lamp function automatically turns ON/OFF the headlamp and tail lamp according to the headlamp (low-beam) and tail lamp illumination request signals which are sent from the lighting control sensor (lamp sensor) to the front-ECU via the CAN converter-ECU, when the ignition switch is in the "ON" position and the lighting switch is in the "AUTO" position.
  • The lamp sensor and the rain sensor are incorporated into the lighting control sensor. The lamp sensor is used for the auto lamp function, and the rain sensor for the rain sensitive wiper function *.
    note *: For the rain sensitive wiper function, refer to GROUP 51, Windshield Wiper and Washer .
  • The lighting control sensor (lamp sensor) detects the front and surrounding brightness of the vehicle. With this detection, it is judged that the vehicle enters a tunnel or just drives under a bridge. When it is judged that the vehicle drives through a tunnel, the headlamp and tail lamp are automatically turned ON. When it is judged that the vehicle drives under a bridge, the headlamp and tail lamp are not turned ON automatically. When the vehicle surroundings get dark in case such as evening, the headlamp and tail lamp are automatically turned ON.
  • The timing that the headlamp and tail lamp are automatically turned ON when the vehicle surroundings get dark in case such as evening can be adjusted by the customise function. (Refer to Customise Function .)