Land Rover Defender: Component Location, Overview

COMPONENT LOCATION

COMPONENT LOCATION - 1 OF 4

NOTES:

• Right Hand Drive (RHD) vehicle is shown, Left Hand Drive (LHD) vehicle is similar.
• Vehicle with 5 doors is shown, vehicle with 3 doors is similar.

1. Passenger airbag
2. Driver airbag
3. Driver side airbag
4. Passenger side airbag
5. Restraints Control Module (RCM)

COMPONENT LOCATION - 2 OF 4

NOTE: Vehicle with 5 doors is shown, vehicle with 3 doors is similar.

1. Right pressure sensor
2. Front side impact sensor (quantity 2)
3. Rear side impact sensor - (quantity 2) - vehicle with 5 doors only
4. Left pressure sensor
5. Front impact sensor (quantity 2)

COMPONENT LOCATION - 3 OF 4

NOTES:

• LHD vehicle is shown, RHD vehicle is similar.
• Vehicle with 5 doors is shown, vehicle with 3 doors is similar.

1. Seatbelt retractor - Passenger side
2. Seatbelt buckle - Passenger side
3. Seatbelt buckle - Driver side
4. Seatbelt pretensioner - North American Specification (NAS) market vehicles only
5. Seatbelt retractor - Driver side

COMPONENT LOCATION - 4 OF 4

NOTE: Vehicle with 5 doors is shown, vehicle with 3 doors is similar.

1. Seatbelt buckle - Center seat
2. Seatbelt retractor - Center seat
3. Occupant detection sensor - Center seat

OVERVIEW

WARNING: All pyrotechnic devices are dangerous. Before performing any procedures on any pyrotechnic device, read all information contained within the Standard Workshop Practices section of this manual.

The RCM controls the operation of the system. The Supplementary Restraint System (SRS) provides additional protection for vehicle occupants in certain impact conditions by selective activation of:

• Driver airbag
• Passenger airbag
• Driver side airbag
• Passenger side airbag
• Seatbelt pretensioner.

The RCM receives inputs from various sensors around the vehicle to determine which devices, if any, should be activated during an accident.

The inputs are:

• An Occupant Classification Sensor Control Module (OCS) - NAS market only
• Front impact sensors
• Front side impact sensors
• Rear side impact sensors - vehicle with 5 doors only
• Right and left pressure sensors
• X, Y and Z axis acceleration sensors
• Vehicle speed
• Seat track position sensor.

On all vehicles except NAS, Australia and Japan market, the passenger airbag can be enabled and disabled. Use the vehicle setup menu in the Instrument Panel Cluster (IPC) message center to enable and disable the passenger airbag.

The activation status of the passenger airbag is given by an indicator in the front overhead console. The status of the SRS is given by an airbag warning indicator in the IPC.

The airbags feature hybrid inflaters, which use a self-contained pyrotechnic device to heat a cylinder of compressed inert gas within the inflater. Above a calibrated pressure, the cylinder bursts and releases the gas into the airbag. The benefits of hybrid inflaters are a cooler inflation gas, resulting in lower airbag surface temperatures and elimination of the post-deployment effluent associated with solid pyrotechnic inflaters.

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