Land Rover Discovery: Headlamp Washers - Description
- 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).
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Rain/Light Sensor (If Fitted) - Description
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
Wipers and Washers Control Switch - Description
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
Windshield Wiper Fast/Slow/Single Wipe - Operation
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:
Pedestrian Protection System
Pedestrian Impact
Sensor (G2158916) / Removal and
Installation
REMOVAL
WARNINGS:
Do not probe supplemental restraint system (SRS) electrical
connectors.
To avoid accidental deployment and possible personal injury,
the
backup power supply must be depleted before repairing or
replacing any air bag supplemental restraint system (SRS)
components. To deplet
Joints and Joint Faces
All gaskets should be installed dry unless stated otherwise. Always apply the
specified lubricant to O-rings and install O-rings using the fingers only.
Use gasket removal spray and/or plastic scrapers to remove traces of old
gasket.
CAUTION:
DO NOT use metal scrapers or emery cloth as these may da
