Headlamp Washers
The headlamp washers are only active when the headlamps and ignition are switched on and the windshield wash is requested. With the ignition and lights on, headlamp wash is activated on the first operation of the windshield washer switch. When headlamp wash is active, the CJB provides a ground for the headlamp washer relay in the EJB which supplies power to the headlamp washer pump.
The CJB monitors the operation of the washer switch and maintains a counter to restrict headlamp washer operation to every fourth operation of the washer switch in conjunction with a 10 minute timer. The timer prevents a second operation of the headlamp washers within a 10 minute period. If the windshield washer switch is operated for more than 4 programed wipe requests during the 10 minute period, the headlamp washer will remain disabled. After the 10 minute timer has expired, the headlamp washers will be enabled only on the next consecutive programed wipe request.
The counter and timer are reset when:
- the ignition is switched off
- the lightning control switch is turned from 'OFF' to 'ON' position within the same ignition cycle
- the headlamps are switched off and back to on in 'AUTO' mode.
If the windshield washer reservoir fluid level becomes low, the CJB suspends headlamp wash operation to preserve washer fluid in the windshield washer reservoir.
| ITEM | DESCRIPTION |
|---|---|
| 1 | Washer jet trim panel |
| 2 | Washer nozzle (2 off) |
| 3 | Telescopic arm |
| 4 | Washer jet housing |
| 5 | Washer fluid supply hose connection |
The front bumper is installed 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 three self-tapping screws to a bracket moulded 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 washer fluid pressure decreases the headlamp washer is automatically retracted back into the housing. The outer end of the headlamp washer is installed 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.