Description

Safety Belt System

NOTE:
A = Hardwired; D = High speed CAN (controller area network) bus.

SAFETY BELT REMINDER/BELTMINDER SYSTEM









SAFETY BELT REMINDER
The safety belt warning indicator comes on if the driver safety belt, or the safety belt of an occupied front passenger seat, is not fastened. The indicator goes off when the offending safety belt is fastened.
The CJB (central junction box) controls the operation of the safety belt warning indicator with a high speed CAN (controller area network) bus message to the instrument cluster. The status of the front safety belts is provided by a high speed CAN (controller area network) bus message from the RCM (restraints control module). Front passenger seat occupancy status is provide by a hardwired input from the occupant detection sensor (all except NAS), or a high speed CAN (controller area network) bus message from the classification module (NAS only).

Safety Belt Warning Indicator





BELTMINDER SYSTEM
The beltminder system augments the safety belt reminder. At vehicle speeds above 10 mph (16 km/h), if the safety belt of the driver seat or an occupied front passenger seat has not been fastened, or if a front or rear safety belt is unfastened, the beltminder system activates an intermittent warning tone, flashes the safety belt warning indicator and displays a warning message indicating which safety belt triggered the warning.
The CJB (central junction box) controls the operation of the beltminder system with a high speed CAN (controller area network) bus message to the instrument cluster. The status of the safety belts is provided by hardwired inputs from each of the rear safety belt buckles, and a high speed CAN (controller area network) bus message from the RCM (restraints control module). Front passenger seat occupancy status is provide by a hardwired input from the occupant detection sensor (all except NAS), or a high speed CAN (controller area network) bus message from the classification module (NAS only).

Message Center Beltminder Graphic





A vehicle graphic in the message center shows the status of the safety belts. Each seating position is represented by a passenger icon, the color of which indicates the safety belt status:
- No color - safety belt not fastened.
- Green - safety belt fastened.
- Red - safety belt status changed from fastened to unfastened.
A beltminder warning triggered by one of the rear safety belts can be cancelled by pressing the information button on the steering wheel.
Although not advisable, it is possible to disable the beltminder system using Jaguar approved diagnostic equipment.

NOTE:
If a heavy object is placed on the front passenger seat, it may trigger a beltminder warning.

GENERAL
Each safety belt retractor incorporates a load limiting function and a dual locking function. The load limiting function progressively releases a small amount of webbing when the belt tension exceeds a certain level, to reduce the loads on an occupant's chest during an impact. The dual locking function locks the retractor if the webbing is pulled out of the retractor too quickly, or the vehicle is subject to unusually high acceleration or tilts beyond a given angle.