Lotus 2004 Eleven Service Notes page 333

Lotus Service Notes
The sensitivity of the sensor is factory
set for the Elise/Exige, and should never need
any adjustment. Such a faciltity is, however,
provided on the unit, and is accessible after
removal of the cabin rear bulkhead trim panel.
Turning the adjustment screw clockwise
will increase sensitivity. Be aware that the
adjustment movement is extremely short, with
only a fraction of a turn being needed.
Manual Activation of Siren
If, for personal security reasons, it is desired to manually activate the siren at any time when the ignition
is off, press for 3 seconds the transmitter auxiliary (3rd) button. The wailing siren will sound, and the hazard
lamps flash for a period of 30 seconds. To stop the siren, press once any of the transmitter buttons.
Manual siren activation will not affect the status of the alarm arming.
Transmitter Key Battery Replacement
The transmitter keys will normally operate
within a range of 5 metres from the car, but this
may be reduced by the presence of other radio
signals in the vicinity. The transmitters are
powered by a long life 3V Lithium battery, type
CR2032, which with normal use should last for
3 years. To ensure continuity of operation, it
is recommended to renew the batteries every
12 months:
- Using a small screwdriver, prise open the
back panel of the key case using the slot
by the keyring hole.
- Remove the old battery and wait for 10 seconds before inserting the new battery with +ve sign uppermost,
and holding the battery only by the periphery.
- Refit the back panel, engaging the retaining tongue, and pressing firmly to engage the clip.
- The transmitter should now operate normally.
Disconnecting the Vehicle Battery
In order to prevent the alarm being triggered, before disconnecting the vehicle battery, ensure that the
alarm is disarmed.
Emergency Disarming/Mobilising
If the key head transmitters are lost or damaged, the alarm system owner's 5-digit PIN may be used to
disarm the alarm and start the engine provided that the cabin is accessible, and a correct mechanical key
blade is available. Note that if the alarm is armed, accessing the cabin, or turning on the ignition will trigger the
alarm until completion of this emergency process.
- Turn on the ignition. The alarm tell tale will light.
- Within 10 seconds, turn the ignition off; the tell tale will begin to flash.
- After a number of flashes corresponding to the first digit of the PIN, turn on the ignition. Note that the first
flash may not be of full duration (but is still to be counted) dependent on the waveform position at time of
ignition switch off.
- Turn off the ignition and after a number of flashes corresponding to the second digit of the PIN, turn on
the ignition. Repeat this process until all 5 digits have been completed. Note that 10 flashes correspond
to a zero digit.
- If the PIN is entered correctly, the alarm will now be overridden and the engine mobilised. However, pas-
sive immobilisation will still occur after an ignition off time of 40 seconds, requiring a repeat of the above
procedure to mobilise. Passive arming and passive door locking cannot occur until a transmitter is used
to operate the alarm.
Page 30
INGRESS SENSOR
Retaining
tongue
Section MP
Adjuster screw
Back panel
CR2032
battery
TRANSMITTER BATTERY
REPLACEMENT
m267
oh102b