Category: Land Rover Discovery 3
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How to Repair Brittle Automotive Wiring Connectors
Replace a broken sealed connector half instead of the full harness. SICMA Mini-Sealed 1.5 repair guide for engine-bay wiring.
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Down the rabbit hole of Delphi SICMA Connectors on the Land Rover Discovery 3
The Delphi SICMA connector family carries most of the wiring on a Land Rover Discovery 3. This guide explains how to identify, repair, and source these connectors without…
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Discovery 3 CAN Bus, Part 11: EPB Module Replacement — Longitudinal Sensor & the Real Fix
The Discovery 3 air suspension CAN bus investigation reaches its conclusion. Replacing the EPB module restored the longitudinal acceleration sensor — fixing phantom pitch corrections, brake force data,…
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Discovery 3 Suspension Levelling Solved — Cheap aftermarket EPB Module Was the Culprit
Months of CAN bus diagnosis revealed why this Discovery 3 kept self-levelling — a cheap aftermarket EPB module was failing to transmit the longitudinal value, blinding the suspension…
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Discovery 3 CAN Bus, Part 10: The EXML Files and What We’re Still Hunting
SDD stores diagnostic configuration in EXML — JLR’s proprietary encrypted XML format. We cracked the Triple DES encryption, decrypted 2,033 EXML files, and found the RLM’s diagnostic data…
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Discovery 3 CAN Bus, Part 7: Cracking the Ford Security Algorithm
Before you can write calibration data to an ECU, you need to pass Security Access. We found the Ford KeyGenMkI algorithm, confirmed the 24-bit LFSR seed in SecAlg.dll,…
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Discovery 3 CAN Bus, Part 6: Reverse Engineering JLR SDD for Air Suspension Diagnostics
Going deeper into the Discovery 3 air suspension: we downloaded JLR SDD 130, extracted the dealer diagnostic VM, and found the service action plugins, VERONA CAN protocol layer,…
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Discovery 3 CAN Bus, Part 9: Building Our Own UDS Diagnostic Tool
Building a Python UDS diagnostic tool for the Discovery 3 air suspension RLM module. Using a LilyGO ESP32 CAN board with full ISO-TP transport, Ford KeyGenMkI security unlock,…
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Discovery 3 CAN Bus, Part 8: The LilyGO CAN Transceiver TX Saga
We spent weeks trying to transmit CAN frames from the LilyGO ESP32 board. Frames were received perfectly but nothing would transmit. The fix? Two GPIOs we never knew…
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Land Rover Discovery 3 Intake Manifold Replacement: Alloy vs OEM — What Australian Owners Need to Know
Cast aluminium intake manifolds are emerging as a durable alternative to the OEM plastic part for Land Rover Discovery 3 and 4. We cover install tips, common pitfalls…