Land Rover Defender: Anti-Theft - Passive - Description

LF ANTENNAS

NOTES:

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

1. LF - Front passenger compartment
2. LF - Right passenger compartment
3. LF - Left luggage compartment
4. LF - Rear passenger compartment - Only for passive start system
5. LF - Left passenger compartment

There are 5 LF antennas for the Passive Entry Passive Start (PEPS) system positioned in the following locations:

• There is 1 LF antenna located in the front floor console.
• There is 1 LF antenna located in each rear door.
• There is 1 LF antenna located beneath the third row seats, the antenna only for passive start system.
• There is 1 LF antenna located behind the rear bumper.

The RFA transmits a LF signal through the antennas which is received by the smart key. The smart key then responds by transmitting a RF signal which is received by the RF receiver. The RF receiver sends the signal to the RFA.

RFA

NOTES:

• Vehicle with 5 doors is shown. Vehicle with 3 doors is similar.
• Before you configure a new RFA, put ALL the vehicle keys on the center console.

1. Vehicles with PEPS system
2. Vehicles with passive start system

1. RFA

The RFA is located in the below of the front left seat.

The RFA controls signal transmissions to and from the smart key and provides authorization to allow the vehicle to be unlocked and started. The RFA has a High Speed (HS) Controller Area Network (CAN) body systems bus connection to the BCM/ GWM.

RF RECEIVER

NOTE: Vehicle with 5 doors is shown. Vehicle with 3 doors is simila

The RF receiver is located in the rear headliner.

The RF receiver receives RF signals from the smart key. When the RF receiver receives a signal from the smart key, the RF receiver passes the signal to the RFA.

There are 2 types of RF receiver available as detailed in the table below.

IAU

NOTE: RHD vehicle is shown, LHD vehicle is similar.

The IAU is installed underneath of the lower steering column cover and secured with a screw, for both auto and manual columns.

The IAU is used when the RFA is unable to authorize the smart key.

The RFA is unable to identify the smart key when the smart key battery voltage is low or there is RF interference.

The transponder within the smart key can be read in the conventional manner.

The driver is alerted to this by an audible chime and a message is displayed in the Instrument Panel Cluster (IPC).

The message is 'Place Smart Key as shown, and press start button'.

PASSIVE ENTRY TRANSCEIVER

NOTES:

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

1. Passive entry transceiver - Front
2. Passive entry transceiver - Rear

There are 2 passive entry transceivers in a vehicle, 1 on the front headliner and the other on the rear of the headliner.

The passive entry transceivers are used to locate the position of the smart key from the vehicle. The passive entry transceivers communicate with the RFA through a Local Interconnect Network (LIN). Each passive entry transceiver has a power supply from the Rear Junction Box (BCMB) and a ground connection. When the passive start sequence is initiated and a smart key is detected, the passive entry transceivers calculate the distance of the smart key. Then the RFA allows the authorization of the smart key only when this distance is within permissible limits.

NOTE: The passive entry transceivers are only equipped on PEPS vehicles, and ultra wide band in permitted markets. When the passive entry transceivers are not equipped, the RFA performs the smart key authentication through LF challenge to the smart key. The responses from the smart key are received through the RF receiver.

The passive entry transceivers are also involved with the passive entry system.

PEPS SYSTEM

NOTE: The smart key does not need to be held adjacent to the IAU. However this function is still supported to cover error states.

The PEPS system includes enhancements to further improve vehicle security.

The smart key includes ultra wide band technology. Ultra wide band technology includes 2 new passive entry transceivers, which are programed to the vehicle in conjunction with smart keys.

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