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Autopapyrus · Land Rover Discovery Sport (I facelift, L550)
https://autopapyrus.com/guides/land-rover/discovery-sport/connecting-a-diagnostic-scanner-to-the-obd-ii-port/
Compiled automatically from service literature and owner experience. Specs are for the typical configuration — check them against your exact car before you start.

Land Rover Discovery Sport (I facelift, L550): Connecting a Diagnostic Scanner to the OBD II Port

On the Discovery Sport L550, the OBD II diagnostic port is in the driver's area, above the pedals and above the left footrest. Connecting to it takes a few minutes and requires no panel removal. For extended diagnostics (all modules, coding, service functions), you need a scanner that supports Jaguar Land Rover. Universal adapters mostly read engine codes only.

Difficulty: Easy Time: 5-10 minutes Steps: 9

Part

№Part
01 OBD II diagnostic connector with harness (Land Rover Discovery Sport L550)if the connector is damaged

Tools

3
  • OBD II scanner or adapter (ELM327 based on a chip that supports HS-CAN/MS-CAN, or a professional scanner)
  • smartphone or laptop
  • flashlight
There's a full repair manual for this car Every system, wiring diagrams and torque specs — not just this job. Haynes AutoFix (online). See manuals →

Step by step

9 steps
  1. Park the vehicle, apply the parking brake, and turn the ignition off along with all electrical loads (lights, climate control, infotainment).
  2. Sit in the driver's seat and locate the 16-pin trapezoidal connector. It is under the instrument panel in the driver's footwell, above the pedals and the footrest. Sometimes it is covered by a small cap or sits in a recess, so use a flashlight.
  3. If the connector has a protective plug or cover, remove it carefully by hand without using a screwdriver.
  4. Insert the scanner or adapter plug into the connector until it latches. The ignition should still be off. Do not force it: the connector's keyed trapezoidal shape fits only one way.
  5. Turn the ignition on: press the Start/Stop button without pressing the brake pedal (ignition-on position, engine not started). For some functions, the scanner will require the engine to be running. In that case, press the brake and start the engine.
  6. Launch the app on your smartphone or laptop and select the Land Rover make, the Discovery Sport (L550) model, and the year 2021. For a Bluetooth adapter, pair it first (the PIN is most often listed in the adapter's instructions).
  7. Read the fault codes. If you need data from all modules (ABS, airbags, transmission, body modules), make sure your scanner supports the extended Land Rover protocol. Otherwise, only engine codes will be available.
  8. Write down the fault codes before clearing them. Clear codes only after the cause has been fixed.
  9. When finished, turn the ignition off and wait for the app to end the communication session. Then remove the adapter and put the cover back in place.

Common mistakes and warnings

  • Do not leave a cheap adapter plugged in for a long time while the vehicle is off
  • It draws current continuously and can drain the battery, and it can also cause faults in modules on the CAN bus
  • If communication fails or extra warnings appear on the instrument cluster after connecting, unplug the adapter and check the battery voltage
  • Perform coding, module pairing, and programming only with equipment that supports these functions, or at a repair shop with the official Jaguar Land Rover diagnostic software