LR117928 | Passive Start Module - Anti-Theft System | Range Rover & Defender
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To check the stock of Genuine Parts before placing an order please use our Contact Us page
Land Rover Part Number: LR117928 - Passive Start Module
LR117928 is a Passive Start Module used in the vehicle anti-theft and passive start systems. Fitted as a vehicle-level control unit, it controls start authorisation and electronic immobiliser functions by exchanging electronic signals with the vehicle's security electronics and the key transponder and by interfacing with immobiliser and alarm subsystems. This unit is not user-serviceable; replacement must match the original part number and any vehicle software/firmware requirements. For workshop fitment, confirm the correct part number for the vehicle and any required programming or coding steps as directed by vehicle service documentation. Use the compatibility data below to confirm fitment against your V.I.N.
Compatibility
- Discovery 5 (2017 >) - From VIN K2000001
- Discovery Sport (2015 >) - From VIN FG000001, From VIN GT000001
- New Defender (2020 >) - (L663)
- New Range Rover Evoque (2019 >) - (L551)
- Range Rover (2013 - 2022) - (L405)
- Range Rover Sport (2014 - 2022) - (L494)
Frequently Asked Questions
The LR117928 Passive Start Module manages electronic authorisation for passive or keyless engine start by communicating with the vehicle security electronics and the key transponder. It also interfaces with the vehicle immobiliser and alarm subsystems to determine and enforce start permission. As a vehicle-level control unit it is not user-serviceable and must be replaced with the correct part number and any required programming/coding completed by a workshop.
| Model | Variant |
|---|---|
| Land Rover Discovery 5 (2017 >) - (L462) | Anti-Theft Alarm Systems (From VIN K2000001) |
| Land Rover Discovery Sport (2015 >) - (L550) | Anti-Theft Alarm Systems (From VIN FG000001; From VIN GT000001) |
| Land Rover New Defender (2020 >) - (L663) | Anti-Theft Alarm Systems |
| Land Rover New Range Rover Evoque (2019 >) - (L551) | Anti-Theft Alarm Systems |
| Land Rover Range Rover (2013 - 2022) - (L405) | Anti-Theft Alarm Systems |
| Land Rover Range Rover Sport (2014 - 2022) - (L494) | Anti-Theft Alarm Systems |
If you are unsure of compatibility with your vehicle, you can also confirm by checking against your V.I.N. Simply reach out to us with your V.I.N and desired part number via our Contact page or use our Finding Part Numbers page.
The module should be replaced when diagnostics or a qualified workshop confirm a fault that prevents passive or keyless start. Replacement must be carried out with the correct part number and any required programming or coding completed as per vehicle service documentation.
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