Dodge Viper SRT-10 (ZB). Manual - part 81

ing and closing of the vehicle doors and electronics to
accomplish the lock function. There are cables on the
driver and passenger inside handles and the driver’s
door key cylinder that can open the doors in case of a
power failure.

The lock status of the vehicle is a virtual lock, that

is, the Body Control Module (BCM) monitors which
door is considered locked, and will ignore the outside
handle input on the door.

The BCM will send a message to the cluster that

will identify if any one or both doors are unlocked. If
only one door is unlocked, then DOOR UNLOCKED
in the odometer display will blink continuously.
DOOR UNLOCKED will remain steadily on in the
odometer display if both doors are unlocked. No mes-
sage will be displayed if both doors are locked.

DOOR ENTRY INHIBIT

Once the vehicle is started and driven to a speed of

8 to 13 Km/h (5 to 8 mph) then any actuation by the
door inside or outside handles will be ignored. This
has no effect on the virtual lock status of the vehicle.

POWER SYSTEMS

8N - 1

DOOR EXIT

The vehicle is exited by pulling the inside door

handle. This will activate an electrical switch which
is received by the Body Control Module (BCM). The
virtual lock state for the door will be set to unlock
and BCM will power the doors unlatch motor. If the
handle is pulled hard enough, then a cable will
mechanically open the door. If the inside door switch
request is present for more than 10 seconds, then a
stuck fault will be stored in the BCM. If a Passenger
inside door lock switch signal is active then inputs
from the outside handle and door lock switch shall be
ignored. The Driver door outside handle has a sepa-
rate input and works independently from the inside
handle and lock switch.

REMOTE KEYLESS ENTRY

This vehicle utilizes a Remote Keyless Entry (RKE)

module that has a serial link to the Body Control
Module (BCM). The RKE system allows locking and
unlocking as well as arming and disarming of the
security system with a hand held transmitter.

OPERATION

DOOR ENTRY

The vehicle is entered by pushing the outside door

handle. This will activate an electrical switch which
is received by the Body Control Module (BCM). If the
virtual state of the door is unlock, then the BCM will
power the doors unlatch motor, activate the illumi-
nated entry and smart glass function. If the outside
door handle switch request is present more than 10
seconds, then a stuck fault will be stored in the
BCM. A stuck outside handle will not prevent
actuation from an inside handle signal.

DOOR EXIT

The vehicle is exited by pulling the inside door

handle. This will activate an electrical switch which
is received by the Body Control Module (BCM). The
virtual lock state for this door will be set to unlock
and BCM will power the doors unlatch motor and
perform the smart glass function. If the handle is
pulled far enough, then a cable will mechanically
open the door. If the inside door switch request is
present for more than 10 seconds, then a stuck fault
will be stored in the BCM. If an inside door lock
switch signal is active then inputs from the out-
side handle and door lock switch shall be
ignored.

DOOR LOCK SWITCH

When the Body Control Module (BCM) receives an

input from the lock switch indicating a door lock/un-
lock request is present, the BCM will set both doors
of the vehicle to virtual lock or unlock. If the door
lock switch request is present for more than 10 sec-
onds then a fault will be stored in the BCM.

DOOR LOCK INHIBIT

If the key is in the ignition and either door is ajar,

then a request to lock the vehicle shall be ignored
when activating either door lock switch. Pressing the
RKE lock/unlock button under these conditions shall
result in a normal lock/unlock lock status.

AUTOMATIC DOOR LOCKS

This vehicle has a automatic door lock feature that

will set the vehicle to virtual lock when certain con-
ditions are set. This feature can be enabled or dis-
abled by using the DRBIII

t or by the customer. It is

initially set to enabled. The vehicle is set to virtual
lock when all the requirements listed below have
been met:

• Vehicle speed is equal to or greater than 18 mph

• All doors are closed

• The engine controller has set the okay to lock

doors

• The doors were not previously locked, via the

power door lock switch or RKE when the ignition is
in the run/start position

Once all conditions are met, the Body Control Mod-

ule (BCM) will set the vehicle to virtual lock and
send a message to the cluster indicating lock status.
Once an automatic door lock has occurred, opening
any door will reactivate the automatic door lock fea-
ture when the above listed conditions are again met.

KEY CYLINDER FUNCTION

The driver door key cylinder will allow the opera-

tor to perform a driver door entry, disarm the vehicle,
set the vehicle to virtual unlock, activate the illumi-
nated entry and Smart Glass function. The key cyl-
inder switch has a separate resistively multiplexed
input to the Body Control Module (BCM). This switch
has two positions: Neutral (diagnostic) and Unlock.

The key cylinder is located on the drivers door

below the outside mirror.

Turning the key towards the rear of the vehicle

indicates an unlock signal to the (BCM). When an
unlock input from the key cylinder is detected, the
body controller will unlatch the driver door, activate
the Smart Glass function, disarm the Vehicle Theft
Alarm (VTA), activate the illuminated entry and set
the vehicle to virtual unlock.

8N - 2

POWER LOCKS

POWER LOCKS (Continued)

REMOTE KEYLESS ENTRY

The UNLOCK button will unlock either the drivers

door or both doors if pressed twice.

When the Body Control Module (BCM) receives an

unlock input, the park/tail lamps will flash one time
to indicate the drivers door is unlocked, or will flash
twice to indicate that both doors are unlocked, dis-
arm the Vehicle Theft Alarm (VTA) and activate the
illuminated entry.

Once the LOCK button is pressed, the horn will

sound a short chirp to notify that the all door lock
signal was received. When the Body Control Module
(BCM) receives a lock input, both doors are locked,
the horns chirp and the park/tail lamps are flashed
on and off one time and initiates the Vehicle Theft
Alarm (VTA) process.

DIAGNOSIS AND TESTING - POWER LOCKS

Any diagnosis of the Power Locks system

should begin with the use of scan tool and the
appropriate Diagnostic Service Manual.

Refer to the appropriate wiring information.

DOOR CYLINDER UNLOCK
SWITCH

DIAGNOSIS AND TESTING - DOOR CYLINDER
UNLOCK SWITCH

Any diagnosis of the Power Locks system

should begin with the use of scan tool and the
appropriate Diagnostic Service Manual.

Refer to the appropriate wiring information.
(1) Remove the door trim panel (Refer to 23 -

BODY/DOOR - FRONT/TRIM PANEL - REMOVAL).

(2) Use an ohmmeter to test switch resistance

between pins.

(3) Using the ignition key, turn the key cylinder to

the unlock position.

(4) Test resistance between pins. Ohmmeter should

show 1970 Ohm ± 5%.

(5) Test resistance between pins while switch is in

the unactuated mode. Ohmmeter should show 18.2K
Ohm ± 5%.

(6) If resistance values are not within the param-

eters, replace the switch.

EXTERIOR DOOR HANDLE
SWITCH

DIAGNOSIS AND TESTING - EXTERIOR DOOR
HANDLE SWITCH

Any diagnosis of the Power Locks system

should begin with the use of a scan tool and the
appropriate Diagnostic Service Manual.

NOTE: The driver side exterior handle has a sepa-
rate input to the Body Control Module (BCM). The
driver side interior handle and the door lock switch
are tied to one input into the BCM. The passenger
side exterior handle, interior handle and the door
lock switch are tied to one input to the BCM. If any
one of these switches sets a stuck fault in the BCM,
repair this switch input before diagnosing any of
the other switches.

Refer to the appropriate wiring information.
(1) Remove the exterior door handle (Refer to 23 -

BODY/DOOR

FRONT/EXTERIOR

HANDLE

REMOVAL).

(2) Use an ohmmeter to test switch resistance

between pins.

(3) Depress handle.
(4) Test resistance between pins. Ohmmeter should

show 0 (continuity) on the drivers door and 8K Ohm
± 5% on the passenger door.

NOTE: Do not replace the exterior handle with an
8K Ohm Resistor!

(5) Test resistance between pins while handle is in

the unactuated mode. Ohmmeter should show an
open condition.

(6) If resistance values are not within the param-

eters, replace the exterior door handle switch.

INTERIOR DOOR HANDLE
SWITCH

DIAGNOSIS AND TESTING - INTERIOR DOOR
HANDLE SWITCH

Any diagnosis of the Power Locks system

should begin with the use of a scan tool and the
appropriate Diagnostic Service Manual.

Refer to the appropriate wiring information.
(1) Remove the door trim panel (Refer to 23 -

BODY/DOOR - FRONT/TRIM PANEL - REMOVAL).

(2) Remove the interior door handle (Refer to 23 -

BODY/DOOR - FRONT/INSIDE HANDLE ACTUA-
TOR - REMOVAL).

POWER LOCKS

8N - 3

POWER LOCKS (Continued)

Content .. 79 80 81 82 ..