Land Rover Discovery: Headlamp Washers - Description
![Headlamp washers - Description](images/books/227/index227.jpg)
- Washer jet
- Telescopic arm
- Washer fluid supply hose
NOTE:
The headlamp washers will only operate if the vehicle headlamps are
on.
The front bumper is fitted with two headlamp washers. The headlamp
washers are located in the bumper, below the headlamp assembly. The
headlamp washer is located in an aperture at the front of the bumper and
secured with two self-tapping screws to a bracket molded into the bumper
structure.
The headlamp washers are telescopic units which extend forward from the
bumper under washer fluid pressure supplied by the headlamp washer
pump. When the pump pressure decreases the headlamp washer is
automatically retracted back into the housing. The outer end of the
headlamp washer is fitted with a trim which blends the headlamp washer
into the bumper when it is not operating. Each headlamp washer has a washer jet
which directs washer fluid under pressure onto the headlamp lens
when the headlamp washer is extended.
The headlamp washer pump is a bi-directional pump, Rotation of the pump
in one direction pumps washer fluid to the left headlamp washer jet, the
opposite direction pumps washer fluid to the right headlamp washer jet.
The change of pump rotation is controlled by the CJB changing the polarity
of the voltage supplied to the windshield washer pump motor via two relays
in the Engine Junction Box (EJB).
READ NEXT:
The rain/light sensor is located at the upper edge of the windshield, behind
the interior rear view mirror trim panel. Contact between the rain sensor
and windscreen is provided via a silicon pad wh
Vehicles with rain/light sensor - Automatic rain sensing
selected/intermittent wipe
selected if sensor disabled in IC menu or Vehicles without rain/light sensor
-
Intermittent wipe selected
OPERATION
Slow Wipe
When the driver moves the wipers and washers control switch to the slow
wipe position, the Central Junction Box (CJB) detects a Local Interconnect
Network (LIN) bus message and ene
SEE MORE:
REMOVAL
NOTES:
Removal steps in this procedure may contain installation details.
Engine shown removed for clarity.
Disconnect the battery ground cable.
Refer to: Specifications (414-01 Battery, Mounting and Cables,
Specifications).
WARNING:
Make sure to support the vehicle with axle stands.
Rai
Fuel metering valve
Fuel temperature sensor
Fuel Temperature Sensor
The fuel temperature sensor is located in a threaded port in the HP fuel
pump.
The sensor is a NTC sensor which is connected to the ECM by two wires.
The ECM fuel temperature sensor circuit consists of an internal voltage
di