Commander 4WD V8-4.7L VIN N (2006)
particulate filter has been monitored, which may affect diesel engine performance and emissions. This chime will only occur once during any
ignition cycle.
-
Service Column Lock Warning - On right-hand drive vehicles manufactured with the electronic steering column lock, the EMIC transducer will
generate one short chime each time the SERVICE COLUMN LOCK textual message is displayed by the reconfigurable display in the instrument
cluster. This warning indicates that a failure condition has been monitored affecting the operation of the electronic steering column lock
components or circuits.
-
Service Four-Wheel Drive Warning - On vehicles equipped with an optional Quadra-Trac II(R) four-wheel drive transfer case, the EMIC
transducer will generate one short chime each time the SERVICE 4WD SYSTEM textual message is displayed by the reconfigurable display in the
instrument cluster. This warning indicates a failure condition has been monitored affecting the operation of the electronically controlled transfer
case related components or circuits.
-
Service Park Assist System Warning - On vehicles equipped with the optional park assist system, the EMIC transducer will generate one short
chime each time the SERVICE PARK ASSIST SYSTEM textual message is displayed by the reconfigurable display in the instrument cluster. This
warning indicates a failure condition has been monitored affecting the operation of the park assist system related components or circuits.
-
Service Tire Pressure Monitor System Warning - On vehicles equipped with an optional base or premium Tire Pressure Monitor (TPM)
system, the EMIC transducer will generate one short chime each time a SERVICE TIRE PRESS. SYSTEM textual message is displayed by the
reconfigurable display in the instrument cluster. This warning indicates a failure condition has been monitored affecting the operation of the tire
pressure monitor system related components or circuits.
-
Tire Pressure Monitor Warning - On vehicles equipped with an optional base or premium Tire Pressure Monitor (TPM) system, the EMIC
transducer will generate one short chime each time a LOW PRESSURE textual message is displayed by the reconfigurable display in the
instrument cluster. This warning indicates that a low pressure condition has been monitored in one of the tires on or in the vehicle.
-
Trans Overtemp Warning - The EMIC transducer will generate one short chime each time the TRANSMISSION OVER TEMP textual message
is displayed by the reconfigurable display in the instrument cluster. This warning indicates that the fluid temperature in the automatic transmission
is excessive. This chime will repeat each time the trans overtemp message is cycled from off to on.
-
Turn Signal/Hazard Warning Flasher Emulation - The EMIC relay will generate repetitive clicks at a slow rate to emulate an
electromechanical flasher when the turn signal or hazard warning system are operating. The EMIC relay will generate repetitive clicks at a fast rate
to indicate that the right or left turn signal are operating with one or more bulbs inoperative. In either case, the clicks will continue until the turn
signal and hazard warning systems are turned OFF.
-
Turn Signal On Warning - The EMIC transducer will generate one short chime and a TURN SIGNAL ON textual message with a blinking right
or left turn signal icon are displayed by the reconfigurable display in the instrument cluster. This warning indicates that a turn signal has been
active continuously for 1.6 kilometers (1 mile) with the vehicle speed greater than 22 kilometers-per-hour (15 miles-per hour). The hazard
warning flashers will not activate this chime feature.
The EMIC provides chime service for all available features in the chime warning system, except for the audible warning function provided by the
optional park assist system display module. The EMIC relies upon its internal programming, numerous hard wired inputs, and electronic message inputs
received from other modules over the CAN data bus network to provide the chime warning system features. The internal programming of the EMIC
determines the priority of each chime request input that is received, as well as the rate and duration of each chime that is to be generated.
The hard wired chime warning system inputs to the EMIC may be diagnosed and tested using conventional diagnostic tools and procedures. However,
conventional diagnostic methods may not prove conclusive in the diagnosis of the EMIC, the CAN data bus, or the electronic messages received by the
EMIC from other modules. The most reliable, efficient and accurate means to diagnose the EMIC, the CAN data bus, or the electronic message inputs
used for the chime warning system requires the use of a diagnostic scan tool.
PARK ASSIST SYSTEM
The park assist system is active only when the ignition switch is in the ON or START positions, the parking brake is released and the vehicle speed is
less than 16 kilometers-per-hour (10 miles- per-hour). In addition, the rear park assist system is active only with the manual or automatic transmission
gear selector lever in the REVERSE position, while the front park assist system is only active with the automatic transmission gear selector lever in the
DRIVE position or with the manual transmission selector lever in any position except REVERSE. In vehicles equipped with this option, the system is
enabled from the factory as a default. Both systems can be manually disabled in unison by the vehicle operator using the park assist switch integral to the
lower instrument panel switch pod. If the vehicle operator does not want the system active, momentarily depressing the park assist switch OFF button
will disable the system until the switch button is depressed again.
Reasons for disabling the system include trailer towing and off road use. With a trailer attached to the vehicle the audible and visible rear park assist
alerts would be incessant whenever the gear selector lever was in the REVERSE or NEUTRAL positions due to the proximity of the trailer to the rear of
the vehicle. Similarly, operating the vehicle off road may cause the front and rear park assist alerts to become distracting due to the proximity of large
trees or boulders and the extreme approach angles that may be encountered while maneuvering on off road trails or terrain. When the system is disabled,
a PARK ASSIST DISABLED textual message will appear in the instrument cluster dot matrix display whenever the gear selector lever is in any position
in which the system is normally active. An amber Light Emitting Diode (LED) indicator in the park assist switch button will also be illuminated
whenever the ignition switch is in the ON position and the system is disabled.
The microprocessor based park assist module is the central component of the park assist system. It supplies voltage to the park assist sensors and the
park assist displays, receives and analyzes data from the sensors, calculates and communicates the proper display information to the displays, performs
system diagnostics, and communicates with other electronic modules in the vehicle or with a diagnostic scan tool over the Controller Area Network
(CAN) data bus. The module operates on battery voltage received through a fuse in the Junction Block (JB), and is grounded through a take out and
eyelet terminal of the underbody wire harness that is secured by a nut to a ground stud on the rear floor panel just outboard of the module mounting
location.
