XJ (X350) V8-4.2L SC (2004)
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Audible Warning Device: Description and Operation
Warning Devices
Driver Warning Chime
The system uses a number of inputs to provide the driver with audible and visual warnings.
Instrument Cluster
The instrument cluster acts as a system monitor for the audible and visual warnings. It receives inputs from switches and sensors directly or through the
multiplex link from another module and triggers the necessary warning chime or visual warning.
Ignition Switch Lock Cylinder (North America Only)
A warning chime will sound continuously when the driver door is open and the key is in the ignition in the ACC position or is in the OFF position and
has been moved there from the ACC position. On removal of the key the warning will cease. The key in switch is an integral part of the ignition lock
cylinder and therefore can only be installed with the lock cylinder.
Luggage Compartment Switch
The luggage compartment switch activates the system to provide a visual warning when the ignition is in the run position and the luggage compartment is
open or ajar.
Door Ajar Switches
The door ajar switches activate the system to provide a visual warning when the ignition is in the run position and any of the doors are open or ajar.
Headlamp Switch
A warning chime will sound continuously when the driver door is open or ajar and the vehicle lamps are on. This warning is provided whether the key is
in the ignition but with the ignition turned off, or with the key out of the ignition. The warning chime will cease after 10 seconds, when the lamps are
switched off, when the door is closed or if the ignition is moved from the OFF position.
Safety Belt Reminder
A warning chime will sound continuously for approximately six seconds (North America only) when the driver turns the ignition to the RUN position
and the safety belt is not engaged, a warning lamp will also be illuminated and show continuously (the warning lamp will illuminate for one minute only
in North America). The warning chime and lamp will cease if the safety belt is engaged. (If only the driver is present the safety belt warning will relate
only to the driver. If both front seats are occupied the safety belt reminder will relate to both front seats). The passenger seat weight sensor is used to
determine if the passenger seat is occupied or not. The switch is an integral part of the safety belt buckle and cannot be replaced individually.
Beltminder
European Beltminder
The beltminder function is an additional warning to the safety belt reminder. Under the conditions where a front seat occupant is unbelted or becomes
unbelted and the vehicle is moving above 16 KPH (10 MPH) then an additional warning of an intermittent tone will start accompanied by the safety belt
warning lamp flashing. The intermittent tone and flashing lamp will last for 10 seconds and will repeat every 30 seconds for five minutes. The
additional warnings will stop when all occupants seated in the front of the vehicle have their safety belts fastened or if the vehicle speed drops below 5
KPH (3 MPH).
North American Beltminder
The system will function the same as for European beltminder after 75 seconds.
Air Bag Redundant Chime
If a fault is present in the supplementary restraints system and the warning lamp in the instrument cluster is inoperative, then the restraints control module
will send a signal to the instrument cluster to activate the warning chime. The chime will not sound for the first 75 seconds when the ignition is in the
RUN position. The chime will then sound 5 beeps, this sequence repeats 5 times and the function will repeat every 30 minutes.
Parking Brake Chime
The parking brake chime will sound if the parking brake is applied while the vehicle is moving above 3 KPH (2 MPH). The parking brake release