Durango 2WD V8-4.7L VIN N (2001)
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No response received from any module on the PCI bus (except the PCM)
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No start (if equipped with Sentry Key immobilizer)
Symptoms of Individual module failure could include any one or more of the above. The difference would be that at least one or more modules
would respond to the DRB III.
Diagnosis starts with symptom identification. If a complete PCI Bus Communication Failure is suspected, begin by identifying which modules the
vehicle is equipped with and then attempt to get a response from the modules with the DRB III. If any modules are responding, the failure is not
related to the total bus, but can be caused by one or more modules PCI circuit or power supply and ground circuits. The DRB III may display
"BUS +A SIGNAL OPEN" or "NO RESPONSE" to indicate a communication problem. These same messages will be displayed if the vehicle is
not equipped with that particular module. The CCD error message is a default message used by the DRB III and in no way indicates whether or
not the PCI bus is operational. The message is only an indication that a module is either not responding or the vehicle is not equipped.
VEHICLE THEFT SECURITY SYSTEM
The VTSS system monitors the door ajar switches, and ignition switch to detect unauthorized entry into the vehicle. Once the vehicle is "armed",
any one of these inputs can cause the VTSS system to be tripped. Once tripped, the horn and lights will pulse for 3 minutes and if an attempt is
made to start the engine with a non-programmed SKIM key, it will start and stall. If the trigger condition is still present, the lights will continue to
flash for an additional 15 minutes, after which the system will stop pulsing the lights and return to the "armed" state. The cause of the last 4 alarm
triggers is stored by the CTM and may be retrieved by the DRB III. The system may be disarmed by either an unlock command from a valid RKE
key fob by using a key in either door, or by using a valid SKIM key in the ignition. The door key cylinders are equipped with disarm switches.
There is also a VTSS lamp on the dash that provides information to the driver about the state of the vehicle theft system.
WINDSHIELD WIPER SYSTEM
The DN truck is equipped with speed sensitive intermittent wipers. The low and high speeds are controlled through the wiper stalk switch. The
intermittent portion of the wiper control is handled by the CTM through the intermittent wiper relay. When the module detects a decrease in delay
time as selected by the driver, an immediate wipe of the windshield takes place and the new delay interval is implemented.
