Land Rover ABS Pump and Module Repair
Summary: On a Land Rover a failed ABS unit takes far more with it than the ABS lamp — hill descent control, traction control and Terrain Response drop out alongside it, and on air-suspension vehicles the suspension with them. Repairing the unit that failed, rather than fitting one that has to be programmed to the vehicle, is the shorter route back.
One electronic fault, and the descent control you rely on down a wet field is not available. This page sits under our ABS pump and module repairs: what that looks like on a Land Rover, and when it is not the unit.
Why hill descent and traction control drop out with the ABS light
On these vehicles the ABS unit is not only a brake component: it reads how fast each corner is turning and puts that onto the vehicle’s network, where everything needing road speed reads it.
So the loss spreads. Hill descent control applies the brakes for you, wheel by wheel, through the same hydraulic unit, so it goes first; traction control follows, and on Freelander 2 and later platforms Terrain Response with it.
The dash shows a group, not a lamp:
- ABS and traction control lit together — why those two lamps come on as a pair.
- Hill descent control unavailable, or its lamp staying on.
- A parking-brake warning, and a suspension message on air-sprung vehicles.
None of that proves the unit has failed — it proves the ABS system has stopped being trusted.
The brakes themselves are untouched. What is missing is the assistance: nothing holding a wheel back from locking, and no electronic help on a wet surface. What an ABS pump and module do explains the rest.
Does the fault clear when you cycle the ignition?
One question separates the two commonest causes, and it is worth answering first.
Points away from the unit
- Lights that appear once the vehicle is moving rather than at start-up.
- Lights that clear on an ignition cycle and stay off for days before returning.
That pattern belongs to the wheel-speed sensors and the reluctor rings, which on a Land Rover sit on the CV joints and crack; the stored code usually names a single corner.
Points at the unit
- A warning present from the moment the ignition goes on, every time, with nothing intermittent about it.
- Nothing coming back from the module when a scan tries to reach it — reported as lost communication rather than as a brake fault.
If it is the sensor side, a perfectly good unit comes off for nothing — the removal, the postage and the brake bleed all cost you, and the lights are still on.
Why an off-road vehicle is hard on its ABS unit
These units rarely fail for one reason. The hydraulic block and its control module sit together in the engine bay, heat-cycling and vibrating, while a vehicle that wades or spends winters on salted roads puts water and salt where a road car never does.
Brake fluid ages and draws moisture. The unit also has to keep talking on the vehicle network, and when it stops, the systems reading it report the loss, not the cause.
The unit is not the same box across the range either: the early Discovery ran a WABCO assembly, later platforms moved to ATE and Bosch hardware, identified when it arrives. Two have pages of their own — the Bosch 5.7 under the Range Rover, and the ATE Teves MK70.
What you actually have to arrange
Nothing about this job needs the vehicle to travel. Getting the unit out is the garage’s side of it, never a limit on ours.
- The symptom list matters more than the code
The repair form takes the model, which systems have dropped out, and whether the fault is constant or intermittent.
- It leaves the vehicle at your garage
Removal happens during work your garage already has open; the box needs the unit and your details, nothing else.
- The bench decides, not the booking
Wheel-speed inputs, valve operation and pump drive are exercised on our own equipment, so the diagnosis is measured rather than assumed.
- When it goes back on, so does everything else
Refitted and bled by your garage, it returns to a vehicle that recognises it, and the systems that dropped out come back.
A lifetime, unlimited-mileage warranty covers most of what we remanufacture; the cost side is set out separately.
Warning lights, coding and what we take in
What are the three amigos on a Discovery 2?
ABS, hill descent control and traction control lit together. A specialist publishing that fault treats the trio as a sign the unit itself has failed.
Does a replacement Land Rover ABS module need coding?
Normally yes — a new or second-hand module has to be initialised to the vehicle first, and is not plug and play. A repaired original is the module the vehicle already has; replacement is the case that brings programming into it.
The air suspension dropped at the same time. Are they related?
They can be. A fault in the ABS system is announced on the vehicle’s network, and the suspension, hill descent and traction systems go out in sympathy with it.
My model is not listed. Can you still take it?
Yes. A model missing from a published list is a cataloguing gap, not the boundary of the work.
Sinspeed · hill descent, traction and ABS from one box
Get the systems back, not just the lamp off
Tell us the model and which systems have dropped out.
Behaviour proved on the bench, not inferred from a code · Discovery, Defender, Freelander and Range Rover, one route in
