Chrysler PT Cruiser Service & Repair Manual page 521

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TRANSPONDER KEY (Continued)
Sentry Keys. When programming a blank Sentry Key
transponder, the key must first be cut to match the
ignition lock cylinder of the vehicle for which it will
be used. The vehicle's four digit PIN code will be
required to complete this task since you will need it
to enter the Secured Access Mode in the SKIM. The
following steps must be completed using a DRB III
scan tool:
(1) Insert the blank key into the ignition and turn
it to the RUN position.
(2) Using a DRB III
Alarm, SKIM, Miscellaneous, and then Program
Ignition Key.
(3) Enter the four digit PIN code using the DRB
III scan tool. When programming is completed, the
SKIM will exit Secured Access Mode and the DRB
III scan tool will display the results of your attempt
to program the key. One of five distinct results may
be displayed. All five are listed below:
• Programming Successful is displayed if the
Sentry Key programming is successful.
• Learned Key in Ignition is displayed if the
key in the ignition has already been programmed
into that vehicle's SKIM.
• Eight Keys Already Learned (At The Maxi-
mum) Programming Not Done is displayed if
eight keys have already been programmed into the
SKIM. In this case, if a new key needs to be added
due to a lost or defective key, the Erase All Keys
command (which requires entering the Secured
Access Mode) has to be performed. Following the
Erase All Keys command, all keys that will be used
to operate the vehicle MUST be reprogrammed to
the SKIM.
• Programming Not Attempted is displayed
after an Erase All Keys function is executed.
• Programming Key Failed is displayed if fur-
ther diagnosis is required.
To learn additional keys, turn the ignition OFF,
remove the learned key, insert the next new blank
key, and repeat the steps from the beginning.
"CUSTOMER LEARN" MODE
This feature is only available on domestic vehicles
or those which have a U.S. country code designator.
This procedure requires access to at least two valid
Sentry Keys. If two valid Sentry Keys are not avail-
able, Sentry Key programming will require the use of
a DRB III scan tool.
The steps required to program Sentry Keys with
two valid Sentry Keys follows:
(1) Obtain the blank Sentry Key(s) that need to be
programmed. Cut the keys to match the ignition lock
cylinder mechanical key codes.
scan tool, select Theft
VEHICLE THEFT SECURITY
(2) Insert one of the two valid Sentry Keys into the
ignition switch and turn the ignition switch to the
ON position.
(3) After the ignition switch has been in the ON
position for longer than three seconds, but no more
than fifteen seconds, cycle the ignition switch back to
the OFF position. Replace the first valid Sentry Key
in the ignition lock cylinder with the second valid
Sentry Key and turn the ignition switch back to the
ON position. The second valid Sentry Key must be
inserted, and the ignition key to the ON position,
within 15 seconds of removing the first valid Sentry
key.
(4) About ten seconds after the completion of Step
3, the indicator light will start to flash and a single
audible chime tone will sound to indicate that the
system has entered the Customer Learn program-
ming mode.
(5) Within sixty seconds of entering the Customer
Learn programming mode, turn the ignition switch
to the OFF position, replace the valid Sentry Key
with a blank Sentry Key transponder, and turn the
ignition switch back to the ON position.
(6) About ten seconds after the completion of Step
5, a single audible chime tone will sound and the
indicator light will stop flashing and stay on solid for
three seconds and then turn off to indicate that the
blank Sentry Key has been successfully programmed.
The SKIS will immediately exit the
Learn programming mode and the vehicle may be
started using the newly programmed Sentry Key.
These steps must be completed in their entirety for
each additional Sentry Key to be programmed. If any
of the above steps are not completed in the given
sequence, or within the allotted time, the SKIS will
exit the Customer Learn programming mode and
the programming will be unsuccessful. The SKIS will
also automatically exit the Customer Learn pro-
gramming mode if:
• It sees a non-blank Sentry Key when it should
see a blank.
• If it has already programmed eight (8) valid
Sentry Keys.
• If the ignition switch is turned to the OFF posi-
tion for more than about fifty (50) seconds.
NOTE: If you attempt to start the vehicle while in
"Customer Learn" mode (LED flashing), the vehicle
will behave as though an invalid key is being used
(i.e. the engine will stall after two (2) seconds of
running). No faults will be logged.
NOTE: Once a Sentry Key has been programmed to
a particular vehicle, it cannot be used on any other
vehicle.
8Q - 9
Customer