Commander 4WD V8-4.7L VIN N (2006)
PARK ASSIST SYSTEM
A park assist system is an optional factory-installed electronic parking aid. In some markets only a rear park assist system is offered, while other markets
may have both front and rear park assist systems available. During parking and other similar vehicle maneuvers this system alerts the vehicle operator to
obstacles located in the path immediately in front of or behind the vehicle which, due to the surrounding vehicle structures, might be otherwise difficult
to perceive. When an object is detected, the system uses an electromechanical transducer and Light Emitting Diode (LED) indicators within the
appropriate front or rear park assist display unit to provide the vehicle operator with visual and audible indications of the presence and proximity of such
objects.
The park assist system includes the following major components, which are described in further detail elsewhere in this service information:
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Instrument Cluster (2) - In vehicles equipped with the optional park assist system, the reconfigurable dot matrix Organic Light Emitting Diode
(OLED) display in the Electromechanical Instrument Cluster (EMIC) displays textual warnings and error messages and emits audible warnings
related to the current operating status of the park assist system.
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Park Assist Module (5) - Vehicles equipped with the park assist system include a park assist module which is secured through integral mounting
tabs along with the Final Drive Control Module (FDCM) by integral latch features within a cavity in the left end of the intermediate step assembly
located on the floor panel beneath the second row seat cushion.
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Park Assist Sensors (1) - Vehicles equipped with the rear park assist system have four ultrasonic park assist sensors that are concealed behind the
rear bumper fascia. In addition to the rear sensors, vehicles equipped with the front park assist system have six ultrasonic park assist sensors that
are concealed behind the front bumper fascia. Each sensor is snapped into an individual molded plastic mounting bracket located at horizontal
intervals along the back side of the front or rear bumper fascias.
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Park Assist Display (4) - Vehicles equipped with the rear park assist system have a park assist display unit mounted in the rear of the headliner
above the liftgate opening. Vehicles equipped with the front park assist system have a second park assist display unit mounted in the center of the
instrument panel top pad near the windshield. Only the narrow, oval-shaped smoked clear lens of the front or rear display is visible on the outer
surface of the instrument panel or the headliner.
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Park Assist Switch (3) - The optional park assist system can be manually disabled or enabled using a park assist switch that is integral to the
lower switch pod in the instrument panel center stack below the heater and air conditioner controls.
Hard wired circuitry connects the various park assist system components to each other through 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 and to the vehicle electrical system 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.
The park assist system circuits and components cannot be adjusted or repaired. If any of the park assist system components is damaged or ineffective,
