Land Rover Discovery: Wipers and Washers
COMPONENT LOCATION
- Central Junction Box (CJB)
- Rain/light sensor
- Rear Junction Box (RJB)
- Rear window wiper motor
- Rear window washer jet
- Instrument Cluster (IC)
- Windshield wiper motor and linkage assembly
- Windshield washer jet
- Engine Junction Box (EJB)
- Windshield washer reservoir
- Headlamp washer jet (2 off)
- Right steering wheel switchpack
OVERVIEW
Windshield wiper and washer operation is controlled by the Central Junction Box (CJB) in response to driver inputs and if fitted, signals from the rain/light sensor.
The wiper and washer system comprises:
- Windshield wiper motor and linkage assembly
- Windshield washer jets - located in cowl panel
- Rear window wiper motor
- Rear window washer jet - located in rear spoiler
- Headlamp washer (if fitted)
- Rain/light sensor (if fitted).
The windshield wipers have five operational states:
- Intermittent wipers - vehicles without rain/light sensor
- Automatic wipers - vehicles with rain/light sensor - automatic wipers can be disabled to operate as intermittent via the Instrument cluster (IC) menu.
- Flick wipe
- Windshield wash and wipe
- Slow wipe
- Fast wipe.
The rear window wiper has three operational states as follows:
- Rear window wash and wipe
- Intermittent rear window wipe
- Continuous rear window wipe.
A windshield washer reservoir contains washer fluid which is used by both the front and rear wipers and the headlamp washers (if fitted).
The headlamp washers (if fitted) use a dedicated headlamp washer pump located in the reservoir. The front and rear washers share a single washer pump.
On vehicles with a rain/light sensor, the wipers have an 'Auto' function. The 'Auto' function uses an output from the rain/light sensor to the CJB on a Local Interconnect Network (LIN) bus to provide automatic operation of the windshield wipers. The rain/light sensor is mounted on the inner surface of the windshield and transmits infra-red light to determine the amount of water on the outer surface of the windshield.
DESCRIPTION
- Windshield Wiper Motor and Linkage Assembly - Description
- Rear Window Wiper and Motor - Description
- Windshield Washer Reservoir - Description
- Headlamp Washers - Description
- Rain/Light Sensor (If Fitted) - Description
- Wipers and Washers Control Switch - Description
- Windshield Wiper Fast/Slow/Single Wipe - Operation
- Rear Window Wiper - Operation
- Headlamp Washers - Operation
Wiper Pivot Arm (G1780362) / Removal and InstallationWindshield Wiper Motor and Linkage Assembly - Description
READ NEXT:
Windshield Wiper Motor and Linkage Assembly - Description
Windshield Wiper Motor
NOTE:
Right Hand Drive (RHD) wiper assembly shown
Electrical connector
Electric windshield wiper motor
The windshield wiper motor comprises a 12V electric motor and gear w
Rear Window Wiper and Motor - Description
Rubber mounting (3 off)
Pivot
Motor assembly
Electrical connector
The single speed rear window wiper motor is mounted on the inner panel of
the tailgate and is secured with three bolts. Three
Windshield Washer Reservoir - Description
Windshield washer supply hose
Rear window washer supply hose
Washer fluid level sensor
Right headlamp washer supply hose
Headlamp washer pump
Front/rear washer pump
Left headlamp washer supp
SEE MORE:
Seating - Component Location -
Manual front Seat
Adjustment
Seat forward/rearward adjustment lever
Seat height adjustment lever
Seat backrest recline adjustment knob
COMPONENT LOCATION - ELECTRIC FRONT SEAT ADJUSTMENT
Seat backrest recline motor
Seat switchpack
Seat module
Seat cushion tilt motor
Seat forward/rearward motor
Seat height motor
Glass Roof Panel (G1805062) -
Installation
Installation
CAUTIONS:
Make sure that the 10 spacers are correctly installed prior
to installation.
Make a note of the orientation of the spacers.
CAUTION:
Make sure that the mating faces are clean and free of foreign
material.
Prepare the glass roof panel, glass roof panel flange and trimm
