Wipers and Washers - Description
DESCRIPTION
An electrically operated intermittent wiper and washer system is standard factory-installed safety equipment on this vehicle. The wiper and washer system includes the following major components, which are described in further detail elsewhere in this service information:
- Check Valve - The washer system check valve is integral to the wye fitting located in the washer plumbing between the cowl plenum washer hose and the washer nozzles, and is concealed beneath the cowl plenum cover/grille panel at the base of the windshield.
- ElectroMechanical Instrument Cluster - The ElectroMechanical Instrument Cluster (EMIC) is also known as the Cab Compartment Node (CCN) in this vehicle. The EMIC/CCN is located in the instrument panel above the steering column opening, directly in front of the driver. Instrument Cluster - Description.
- Front Control Module - The Front Control Module (FCM) is integral to the Integrated Power Module (IPM)/Power Distribution Center (PDC). The FCM/IPM/PDC is located in the engine compartment, near the battery. Integrated Power Module (IPM) - Description.
- Multi-Function Switch (4) - The multi-function switch is located on the top of the steering column, just below the steering wheel. A control stalk that extends from the left side of the switch has a control knob on the end that is dedicated to providing all of the driver controls for the wiper and washer systems. Multifunction Switch - Description.
- Washer Nozzle (3) - Two fluidic washer nozzles are secured with integral latch features to dedicated openings in the cowl plenum cover/grille panel located near the base of the windshield.
- Washer Plumbing - The plumbing for the washer system consists of rubber hoses and molded plastic fittings. The plumbing is routed along the right side of the engine compartment from the washer reservoir, and through a rubber grommet and hole near the right end of the cowl plenum panel to the washer nozzle fittings on the underside of the cowl plenum cover/grille panel.
- Washer Pump/Motor - The electric washer pump/motor unit is located in a dedicated hole on the outboard surface of the washer reservoir, ahead of the right front wheel house splash shield.
- Washer Reservoir (1) - The washer reservoir is combined with the engine coolant reserve bottle located on the radiator support to the right of the engine cooling/air conditioning condenser module in the engine compartment. This combined reservoir has separate, clearly identified washer fluid and engine coolant filler caps that are accessed from the right front corner of the engine compartment. Description.
- Wiper Arm and Blade - The two wiper arms are secured with nuts to the threaded ends of the two wiper pivot shafts, which extend through the cowl plenum cover/grille panel located near the base of the windshield. The two wiper blades are each secured to the two wiper arms with an integral latch, and are parked on the glass near the bottom of the windshield when the wiper system is not in operation.
- Wiper High/Low Relay - The wiper high/low relay is an International Standards Organization (ISO) micro relay located in the Integrated Power Module (IPM)/Power Distribution Center (PDC) in the engine compartment near the battery.
- Wiper Module (2) - The wiper pivot shafts are the only visible components of the wiper module. The remainder of the module is concealed within the cowl plenum area beneath the cowl plenum cover/grille panel. The wiper module includes the wiper module bracket, four rubber-isolated wiper module mounts, the wiper motor, the wiper motor crank arm, the two wiper drive links, and the two wiper pivots.
- Wiper On/Off Relay - The wiper on/off relay is an International Standards Organization (ISO) micro relay located in the Integrated Power Module (IPM)/Power Distribution Center (PDC) in the engine compartment near the battery.
Hard wired circuitry connects the wiper and washer system components to the electrical system of the vehicle. These hard wired circuits are integral to several wire harnesses, which are routed throughout the vehicle and retained by many different methods. These circuits may be connected to each other, to the vehicle electrical system and to the wiper and washer system components through the use of a combination of soldered splices, splice block connectors, and many different types of wire harness terminal connectors and insulators. Refer to the appropriate wiring information. The wiring information includes wiring diagrams, proper wire and connector repair procedures, further details on wire harness routing and retention, as well as pin-out and location views for the various wire harness connectors, splices and grounds.