Dodge ZB 2005, Руководство по обслуживанию

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relay coil by controlling power to the relay coil. This
circuit has short to ground diagnostics. The BCM
controls the ground for the down relay coil. This
circuit has open, short to ground or short to voltage
diagnostics.
3.15 ELECTRICALLY HEATED SYSTEMS
The rear window defogger button located on the
HVAC control controls the ground for the rear
window defogger relay coil. The BCM supplies the
power to the Rear Window Defogger relay coil. The
defogger LED will illuminate when the defogger
function is on. The defogger will function for 10
minutes or can be cycled off sooner by pressing the
defogger button again.
3.16 VEHICLE THEFT SECURITY SYSTEM
The Vehicle Theft Security System (VTSS) is part
of the Body Control Module (BCM). The BCM
monitors the vehicle doors, decklid, hood, and the
ignition for unauthorized operation. The alarm ac-
tivates by sounding the horn, flashing the fog/park
lamps and the VTSS indicator lamp. The VTSS also
prevents engine operation by sending a PCI bus
message to the PCM. The VTSS indicator lamp will
flash for approximately 15 seconds during the arm-
ing process. If the lamp is on steady, this indicates
that the decklid/hood is open or there is a fault in
the door entry/locks, or ignition switch. If there is
no interruption during the arming process, upon
completion the VTSS indicator lamp will flash at a
slower rate. When then BCM receives an input to
trigger the alarm, the BCM will control the outputs
of the fog lamps, horn, and VTSS lamp for approx-
imately 3 minutes. If the input that triggers the
alarm is still active, then a lights only (park & Fog
lamps) will continue to flash for 15 minutes or until
the input becomes inactive.
Arming (Active and Passive)
Active arming occurs when the RKE transmitter
are used to lock the vehicle doors, whether the doors
are open or closed. The arming process is complete
only after all doors are closed.
Passive arming occurs when the ignition key is
removed, the driver door is opened, and the doors
are locked with the power door lock switch, and the
door is closed.
Disarming (Active and Passive)
Active disarming occurs when the RKE transmit-
ter is used to unlock the vehicle doors. This disarm-
ing will also halt the alarm once it has been acti-
vated. Access to the decklid is allowed for 30
seconds with the vehicle armed by using the RKE
decklid release button. If the decklid is open during
the arming process, it will be secure after it closes.
Passive disarming occurs upon normal vehicle
entry (unlocking driver door with the key). This
disarming will also halt the alarm once it has been
activated.
Tamper Alert
Normally the VTA lamp will pulse once every 6
seconds when armed. If there is a tamper condition,
the VTA lamp will quickly pulse twice every 6
seconds. When the system is disarmed, a VTSS
tamper alert will sound the horn three times to
indicate a tamper condition has occurred.
Manual Override
The system will not arm if the doors are closed
and the locks are actuated from inside the vehicle.
Diagnosis
For complaints about the Vehicle Theft Alarm
triggering on its own, use the DRBIII
t
and read the
“Last VTSS Cause” status.
3.17 USING THE DRBIII
T
Refer to the DRBIII
t
user guide for instructions
and assistance with reading trouble codes, erasing
trouble codes, and other DRBIII
t
functions.
3.18 DRBIII
T
ERROR MESSAGES
Under normal operation, the DRBIII
t
will dis-
play one of only two error messages: user-requested
WARM Boot or User-Requested COLD Boot. If the
DRBIII
t
should display any other error message,
record the entire display and call the STAR Center.
This is a sample of such an error message display:
ver:2.14
date: 26 Jul93
file: key_iff.cc
date: Jul26 1993
line: 548
err: 0xi
User-Requested COLD Boot
Press MORE to switch between this display
and the application screen.
Press F4 when done noting information.
3.19 DRBIII
T
DOES NOT POWER UP
(BLANK SCREEN)
If the LED’s do not light or no sound is emitted at
start up, check for loose cable connections or a bad
cable. Check the vehicle battery voltage (data link
connector cavity 16). A minimum of 11 volts is
required to adequately power the DRBIII
t
. Check
for proper grounds at DLC cavities 4 and 5.
If all connections are proper between the
DRBIII
t
and the vehicle or other devices, and the
22
GENERAL INFORMATION