Range Rover rear door lock isn’t working properly

As a proud Range Rover owner for years, I can attest to the luxury and versatility that these vehicles provide. However, we all know that with great luxury comes great reliability issues. One of the most common problems that I have personally faced is having issues with the rear door lock not working properly. So, if you’re here searching for “Range Rover rear door lock isn’t working properly,” you’re not alone. Let me guide you through the process of fixing this problem.

What models are affected?

List of possible OBD codes

Before delving into the common causes of the rear door lock problem, let’s first understand the possible OBD codes that may show up:

  • P0705 – Transmission Range Sensor Circuit malfunction
  • B1113 – Selector Lever – Circuit Failure
  • B1A69 – Pedestrian Collision
  • B1B69 – Rear Door Module TAMPERED
  • B1D79 – Left Rear Door Handle – Circuit Short to Ground
  • B1E09 – Right Rear Door Handle – Circuit Short to Ground
  • U0155 – Lost Communication with Instrument Panel Cluster (IPC) Control Module

Common causes

There can be various reasons that your Range Rover’s rear door lock may not be working properly. The following are some common causes:

  • Worn Lock Actuator: The rear door lock actuator may have worn out, leading to a loss of function. If you hear grinding noises while trying to lock or unlock the door, it’s probably the actuator that’s gone bad.
  • Faulty Door Handle: A malfunctioning door handle can also cause the rear door lock to stop working. If the door handle doesn’t open the door, it may mean that the latch isn’t engaging properly, causing the rear door lock to fail.
  • Damaged Wiring: The wiring that connects the door lock components can be damaged due to wear and tear or an accident. If the wiring gets damaged, it can prevent the door lock from functioning properly.
  • Faulty Control Module: An issue with the door lock control module can also cause the lock to fail. It plays a vital role in regulating the door lock’s function, so if it malfunctions, it can lead to the lock not working as expected.

What to check

Once you understand the possible causes, it’s time to check for the problem. Here’s what you need to do:

  • Check if the door lock button mechanism is moving freely and is not stuck in one of the lock positions.
  • Check if the door handle is engaging correctly. If it is loose or not taut, try to tighten it and see if that solves the problem.
  • Check if the wiring is damaged or cut. If so, replace the damaged wiring.
  • Check if the lock actuator is worn out. If it is, replace it with a new one.

Can it be fixed without a mechanic?

Yes! Most of the problems related to the rear door lock can be fixed without a mechanic. However, if you’re not confident in your abilities, it’s always best to consult a professional.

Tools you might need to fix it

Here are some tools that you might need to fix the problem:

  • Screwdrivers of various sizes
  • Pliers
  • Wire cutters
  • A multimeter
  • New lock actuator (if required)

How to fix it

Now it’s time to fix the problem. Here’s a detailed step-by-step guide to help you out:

  1. Remove the door panel: Use a screwdriver to remove the screws on the door panel. Once you’ve done that, gently remove the plastic clips holding the panel in place.
  2. Disconnect the wiring harness: Locate the wiring harness that connects the lock actuator to the door’s control module. Disconnect the wiring harness by pressing the tab on the connector and pulling it out.
  3. Remove the lock actuator: Once you’ve removed the wiring harness, you can now remove the lock actuator. Unscrew the actuator and gently pull it out of the door. Be careful not to damage the wiring while doing this.
  4. Install the new lock actuator: Connect the wiring harness to the new actuator and screw it into place.
  5. Reconnect the wiring harness: Once you’ve installed the new actuator, reconnect the wiring harness to the door’s control module.
  6. Test the lock: Before putting the door panel back in place, test the lock to see if it’s working correctly.
  7. Reinstall the door panel: Once you’ve tested the lock, you can now reattach the door panel by securing it with plastic clips and screws.


How long does it take to fix the rear door lock?

Fixing the rear door lock can take anywhere from an hour to four hours, depending on the cause of the problem.

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Can I use a used lock actuator?

Yes, you can use a used lock actuator as long as it’s in good condition.

What if the problem persists after fixing the lock actuator?

If the problem persists, you may need to inspect the wiring or door handle for any additional issues.


If you’re having trouble with the rear door lock of your Range Rover, remember that it’s a common problem that can be quickly resolved.

From worn lock actuators to faulty door handles, there are many things that could be causing the issue.

However, with this guide, you should be able to diagnose and fix the problem on your own. Trust me, I’ve been there before. “Range Rover rear door lock isn’t working properly” will no longer be a phrase that sends shivers down your spine.

Last updated and verified on 4th September 2023

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Gareth Boyd
Gareth Boyd

An avid Land Rover fan, and lover of all models, specifically Range Rover Sports. Having owned over 5 Ranger Rover models, he has encountered every error code and problem you could imagine!

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