Intrepid V6-3.2L VIN J (1998)
functions through the use of these four buttons. The OTIS will display these functions:
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Compass/Temperature
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AVE ECO Average Fuel Economy
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ECO Instantaneous Fuel Economy
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DTE Distance to Empty
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ET Elapsed Time
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ODO Trip Odometer
If the vehicle is equipped with the optional Homelink feature, the OTIS will have three buttons located in the center of the OTIS module. The OTIS
module receives all of its information over the PCI bus except compass, which is internal to the OTIS module. The OTIS powers up when it recognizes
vehicle voltage on the ignition input circuit. OTIS blanks the display, then illuminates all segments of the VFD. It then blanks the display again. During
this time, the OTIS sends and receives information over the PCI bus to determine what to display after the two-second initialization. The OTIS displays
dashes (- - -) for any of the screens for which it did not receive bus messages during the two-second initialization. These dashes will be replaced by valid
information if and when it is received from the bus.
PCI Bus (Programmable Communication Interface)
The body system on the 1998 and 1999 LH consists of a combination of modules that communicate over the PCI bus (Programmable Communication
Interface multiplex system). Through the PCI bus, information about the operation of vehicle components and circuits is relayed quickly to the
appropriate module(s). All modules receive all the information transmitted on the bus even though a module may not require all information to perform
it's function. It will only respond to messages "addressed" to it through a binary coding process. This method of data transmission significantly reduces
the complexity of the wiring in the vehicle and the size of wiring harnesses. All of the information about the functioning of all the systems is organized,
controlled, and communicated by the PCI bus, which is described in the Vehicle Communication article.
Power Door Lock System
The door lock switches provide a variable amount of voltage through the multiplexed (MUX) circuit to the Body Control Module (BCM). Depending
upon that input and various conditions that must be met (i.e. door lock inhibit, etc.), the BCM will determine the action to be taken and activate the
proper relay for approximately 250 to 350 msec. If the vehicle is equipped with the vehicle theft security system it will have the central locking feature
which locks and unlocks all doors from the door key cylinder switches. These switches are on separate multiplexed circuits to the BCM and have trouble
codes relating to each of them.
REMOTE KEYLESS ENTRY (RKE)
This feature allows locking and unlocking of the vehicle door(s) by remote control using a hand-held transmitter (sometimes referred to as a fob)
to activate a radio receiver (RKE module). This module now plugs into the body control module which is directly connected to the junction block.
With this feature RKE can now be added to a non-equipped vehicle by installing a module. If the vehicle is equipped with the vehicle theft security
system, RKE will also arm and disarm that system. A new 4-button transmitter is used this year which will provide lock, unlock, decklid release
and panic features. Decklid release is only operable while the vehicle is in the park position. The module is capable of retaining up to 4 transmitter
codes. Rolling code, which increases security, has been added this year. If the transmitter goes out of synchronization it is easily put back in by
pressing the lock button when the transmitter is within range. An external antenna has been added which plugs into the module to provide greater
range. RKE will also turn on the interior lamps when a valid unlock command is received and will extinguish the interior lamps when a lock
command is received and all doors are closed.
On a vehicle equipped with the memory system, when the unlock button on a specified transmitter (either #1 or #2) is pressed the BCM will send a
recall message to both the MHSMM and the PCI radio. They will in turn position the left seat and both mirrors along with setting the radio presets.
DOOR LOCK INHIBIT
When the key is in the ignition and the left front door is open, all door lock switches are disabled. The unlock switches are still functional. This
protects against locking the vehicle with the keys still in the ignition.
AUTOMATIC (ROLLING) DOOR LOCKS
This feature can be enabled or disabled by using either the DRB or the customer programmable method. When enabled, all doors will lock when
the vehicle reaches a speed of 15 mph and all doors are closed. If a door is opened and the vehicle slows to below 15 mph, the locks will operate
again once all doors are closed and the speed is above 15 mph.
DECKLID RELEASE
Decklid release is now a function of the body control module. Trouble codes are provided to assist in the diagnosis of this system.
Customer programmable features are: Horn chirp, one or two press decklid release, programming a new transmitter (using a previously
programmed transmitter) and rolling door locks.
Rear Window Defogger
When the Body Control Module (BCM) receives a rear defogger request from the climate control head (either ATC or manual) the BCM will activate
the rear window defogger relay for 15 minutes. If the BCM receives another rear defogger request while the relay is still activated, the relay will be
de-activated. If the relay is allowed to time out (full 15 minutes), further requests during the same ignition on period will cause the BCM to activate the
