ALPS ALPINE R68P0 Passive Keyless Entry User Manual 05
Alps Electric Co., Ltd. Passive Keyless Entry 05
05 User Manual

Since this device is always used with vehicle, it is not sold to general end users separately.
Therefore there is no user manual of this device by alone.
1.Electrical Characteristics
(1) Hand Unit
Modulation type Transmission:FSK Reception:ASK
Operating supply voltage 2.5V ~ 3.5V (3.0V Battery)
Operating supply current < 17mA
Stand-by current < 10uA
Operating ambient temperature -30oC to +60oC
Antenna direction 3-Dimension (X, Y, Z), to be considered
Battery life 3 Years (Low battery indication is considered)

2.Passsive Accsess Entry Functionality
A handle sw located on, for example the door handles, mirrors and trunk lid will be used for proximity check
if user is in neighborhood of the vehicle. The switch input will trigger for unlocking and open the doors and
trunk.
Figure 1
2.1.Door Unlocking
User pushes door handle sw.
ECU sends LF-challenge via exterior antenna.
FOB sends RF-response to the ECU.
Door unlocking status is engaged.
Doors are opened.
Figure 2
Door Handle S
W
LF
RF FOB

2.2.Engine Start
User operates the engine start knob.
ECU sends LF-challenge via interior antenna.
FOB sends RF-response to the ECU.
Immobilizer ECU receives and authorize the response.
Engine controller ECU receives the authorization for engine strat.
Start the engine.
Figure 3
2.3.Engine Stop
User operates the engine stop knob.
ECU communicates with the other ECU for engine start request.
Engine controller ECU receives the request.
Stop the engine
Figure 4
LF
RF
FOB

2.4.Door Locking (Push switch)
User closes the door and pushes the switch (sensing of door locking switch).
ECU sends LF-challenge via exterior antenna.
FOB sends RF-response to the ECU.
Door locking status is engaged.
Doors are locked.
(Indicates the door locking status by means of Flasher / Buzzer or stuff)
3.Active Access Entry Functionality
3.1.Door Unlocking
Same functionality as the current one.
3.2.Engine Start
This function does not effect on the active entry system.
3.3.Engine Stop
This function does not have influence on the active entry system.
3.4.Door Locking
Same functionality as the current one.
3.5.Trunk Open
Same functionality as the current one.

4. Communication Areas
Exterior operating range: MIN 1.2m
Interior operating range: Only inside the car
Number of the exterior exciters : typ.3, however, it is depending on the type of the vehicle.
Number of the interior exciters: max.4 (min.2)
Figure 5
Exterior antenna functionality:
Unlock / lock doors.
Open trunk.
Activate / deactivate alarm system.
Activate immobilizer
Interior antenna functionality:
Deactivate immobilizer
Engine start
Exterior
Interior
Dr As
Back

The following should be displayed in the user manual of the vehicle
CAUTION - Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type.
CAUTION - Do not exposed to excessive heat such as sunshine, fire or the like.
This device complies with part 15 of the FCC Rules. Operation is subject to the following two
conditions: (1) This device may not cause harmful interference, and (2) this device must accept
any interference received, including interference that may cause undesired operation.
FCC CAUTION
Changes or modifications not expressly approved by the party responsible for compliance could
void the user’s authority to operate the equipment.