Description
DESCRIPTION
The multi-function switch (1) is located on the steering column, just below the steering wheel. The only visible components of the multi-function switch are the right (2) and left control stalks (3). One stalk extends through the steering column shrouds on each side of the steering column. The remainder of the switch including its mounting provisions, its electrical connection, and the turn signal cancel actuator (4) are concealed beneath the shrouds.
The switch housing and controls are constructed of molded black plastic. A saddle-like formation in the center of the lower switch housing straddles the steering column tube just below the column lock housing, and two locating posts integral to the lower surface of the switch housing engage two holes in the forward-facing side of the lock housing. Also several integral ledge-like locating tabs on the switch housing are supported and located by several mating points on the column lock housing. When the steering column shrouds are installed on the column, mounting tabs on the switch housing and the clockspring are clamped to the lock housing by the same two screws that secure the column shrouds to the column and each other.
There are several versions of the multi-function switch to support both optional equipment and regulatory equipment that is required only in certain markets. Each multi-function switch control stalk has both white nomenclature and International Control and Display Symbol graphics applied to it, which clearly identify its many functions. Each control stalk has a control knob (5 and 8) on its end with a flattened face to allow it to be easily rotated. On vehicles equipped with optional front fog lamps, the knob on the end of left control stalk can also be pulled outward to select those lamps.
Each control stalk also features a knurled control ring (6 and 7) located just below the control knob. The left control stalk is dedicated to providing driver controls for the interior and exterior lighting systems, while the right control stalk is dedicated to providing driver controls for the front and rear wiper systems.
Two integral connector receptacles on the multi-function switch housing connect the switch to the vehicle electrical system through two dedicated take outs and connectors of the instrument panel wire harness. The left connector receptacle contains nine terminal pins for the lighting control circuits of the switch, while the right connector receptacle contains six terminal pins for the wiper control circuits of the switch.
The multi-function switch cannot be adjusted or repaired. If any function of the switch is ineffective, or if the switch is damaged, the entire switch must be replaced as a unit.
LEFT CONTROL STALK
The left (lighting) control stalk of the multi-function switch supports the following functions and features:
- Front Fog Lamps - For vehicles so equipped, the left multi-function switch control knob provides detent switching for the optional front fog lamps.
- Headlamps - The left multi-function switch control knob provides detent switching for the headlamps.
- Headlamp Beam Selection - The left multi-function switch control stalk provides detent switching for selection of the headlamp high or low beams.
- Headlamp Optical Horn - The left multi-function switch control stalk includes momentary switching of the headlamp high beam circuits to provide an optical horn feature (sometimes referred to as flash-to-pass), which allows the vehicle operator to momentarily flash the headlamp high beams as an optical signalling device.
- Interior Lamps Defeat - The left multi-function switch control ring provides detent switching to DEFEAT the illumination of all interior courtesy lamps when a door, the rear flip-up glass, or the tailgate are opened.
- Interior Lamps On - The left multi-function switch control ring provides detent switching to simultaneously illuminate all interior courtesy lamps.
- Panel Lamps Dimming - The left multi-function switch control ring provides simultaneous adjustable control of the illumination intensity of all instrument panel lighting at one of six available illumination intensity levels.
- Parade Mode - The left multi-function switch control ring provides detent switching for a PARADE mode that maximizes the illumination intensity of all instrument panel lighting for visibility when driving in daylight with the exterior lamps turned ON.
- Park Lamps - The left multi-function switch control knob provides detent switching for the park lamps.
- Rear Fog Lamps - For vehicles so equipped, the left multi-function switch control knob provides detent switching for the optional rear fog lamps. Rear fog lamps are optional only for vehicles manufactured for certain markets, where they are required.
- Turn Signal Control - The left multi-function switch control stalk provides both momentary non-detent switching and detent switching with automatic cancellation for both the left and right turn signal lamps.
RIGHT CONTROL STALK
The right (wiper) control stalk of the multi-function switch supports the following functions and features:
- Continuous Front Wipe Modes - The right multi-function switch control knob provides two continuous front wipe switch positions, low speed or high speed.
- Continuous Rear Wipe Mode - The right multi-function switch control ring provides one continuous rear wipe switch position.
- Front Washer Mode - The right multi-function switch control stalk provides front washer system operation.
- Front Wipe-After-Wash Mode - The right multi-function switch control stalk provides a WIPE-AFTER-WASH mode.
- Front Wiper Mist Mode - The right multi-function switch control stalk provides a front wiper system MIST mode.
- Intermittent Front Wipe Mode - The right multi-function switch control knob provides an intermittent front wipe mode with five delay interval positions.
- Intermittent Rear Wipe Mode - The right multi-function switch control ring provides one fixed interval intermittent rear wipe mode switch position.
- Rear Washer Mode - The right multi-function switch control ring provides rear washer system operation.