Wiper/Washers For The Windshield And Headlamps
The windshield wipers are operated by a motor located beneath the plenum chamber cover. Washer jets are located on the hood and bumper shell for windshield and headlamp washing. The jets are connected to two different pump motors on the washer fluid reservoir, which is located at the front right of the engine compartment. One pump motor is used for high pressure washing of the headlamps while the other is used for windshield washing.
The windshield wipers are operated using the right-hand control stalk. There are three positions:
- intermittent
- low speed
- high speed.
The time between strokes for intermittent wiping is adjusted using a ring on the control stalk.
Pull the control stalk towards the steering wheel to clean the windshield. The washers for the headlamps are activated simultaneously.
The headlamp washer is activated in two brief intervals. After that, the windshield washer must be activated 5 times before two additional brief headlamp wash intervals can occur. This does not apply if a period of 10 minutes has elapsed since the previous washing. The headlamp washers are not activated if there is less than 1 liter of fluid in the washer fluid reservoir.
To clean the rear window, move the stalk in the direction away from the steering wheel, activating the pump motor which also is used for cleaning the windshield. To operate the rear window wiper, there is a button on the end of the stalk.
The steering wheel module (SWM) sends information on control stalk position to the central electronic module (CEM) via LIN communication. The central electronic module (CEM) also receives a signal from the wiper motor if the wipers are in their park position.
The wiper motor module (WMM) is powered directly via 30-feed.
The washer motor for the windshield and rear window washers as well as the rear window wiper is supplied with voltage via a directly connected relay located on Central electronic module (CEM).
The washer motor for the headlights is supplied with voltage via a relay located in the relay and fuse box in the engine compartment.
There are diagnostics for the wiper motor module (WMM) and the relays for the washer pump motors.