Land Rover Discovery: Seatbelt System - Operation

FRONT BELT MINDER FUNCTION

The belt minder function provides warnings to the driver if the appropriate front seatbelts are not fastened when driving. The belt minder function is controlled by the IC using:

• High Speed (HS) Controller Area Network (CAN) Powertrain bus messages, from the RCM, to monitor the status of the front seatbelts.
• An input from the occupant detection sensor to monitor the status of the front passenger seat Rest Of the World (ROW).
• An input from the Occupant Classification Sensor Control Module (OCSCM) via HS CAN Powertrain bus to monitor the status of the front passenger seat (NAS).

When the ignition is switched to on, the IC illuminates the seatbelt warning indicator until one of the front seatbelts is fastened or the belt minder function is triggered. The belt minder function is triggered when the ignition switch is in accessory/convenience and the following conditions coexist:

• The belt minder function is enabled
• The vehicle is not in reverse
• Vehicle speed is initially set at 20 km/h (12mph) or more, then afterwards from 10 km/h (6mph) or more until ignition - cycled
• The driver seatbelt or, if the front passenger seat is occupied, the front passenger seatbelt, is unfastened.

When the belt minder is triggered, the IC generates the following warnings repeated for 10 seconds for a total of approximately 190 seconds

NOTE:

NOTE: There are slight timing differences between ROW and Federal USA (second is driver only, lights only) vehicles.

• Flashes the seatbelt warning indicator at 2 Hz.

After 10 seconds the seatbelt warning indicator changes from flashing to continuously illuminated for 20 seconds. While the trigger conditions still coexist, the warnings are repeated every 30 seconds until one of the following occurs:

• Approximately 3 minutes has elapsed from when the warnings were first triggered
• The seatbelt of each occupied front seat is fastened
• The ignition mode is position 0.

For non-Federal USA vehicles the belt minder function can be enabled and disabled using the driver seatbelt switch. The belt minder function can also be enabled and disabled using the recommended Land Rover diagnostic tool.

Successful completion of the change is indicated by a single chime and the seatbelt warning indicator flashing five times, at 2 Hz.

SEATBELT WARNING INDICATOR

VISUAL BELTMINDER

A front and rear seat Beltminder system warns the driver when the seatbelt of an occupied seat is not fastened or is unfastened during a journey.

Diagram shows Beltminder located in the middle of the instrument cluster message center.

A graphic in "Visual Beltminder" indicates which seat belts are fastened at the start of a journey and also when a seat belt is fastened or unfastened during a journey. Each seating position is represented by a passenger icon, the color of which indicates the seatbelt status:

• Green - seatbelt in the indicated position is fastened
• Red - seatbelt in the indicated position has been unfastened while the vehicle ignition is on
• Grey - seatbelt not fastened, a red symbol will turn grey after 30 seconds.

NOTE:

NOTE: The indicators will be displayed each time there is a status change, e.g., a seat belt is unfastened or a door is opened and then closed.

In addition, an audible warning will sound under the following conditions:

NOTE:

NOTE: If a heavy object is placed on the front passenger seat, it may activate the Beltminder feature. It is recommended that any objects placed on the front passenger seat are secured using the seatbelt.

• The seatbelt of an occupied front seat is not fastened or is unfastened during a journey
• A rear seatbelt is unfastened.

Seatbelt System - OverviewSeatbelt System - Input/ Output Diagram

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