Electronic Air Suspension Manual Override Wiring Harness

EAS Fault - Bleep!  Bleep!

Ok, you've finally converted to coil springs or maybe your using some of those manual inflation valves to keep your Range Rover air springs inflated. Now you have that annoying Bleep! Bleep! to contend with.

Our 'manual suspension override' wiring harness is just what you need. This harness plugs into the main BECM located under the driver's seat, once fitted the BECM knows the suspension is operating in manual mode so those annoying bleeps and any fault messages will disappear.

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Fitting Instructions

Make sure you have your 4 digit EKA code available as you may need this code later when you reconnect your car battery. 

1. Disconnect the main vehicle battery which is located under the bonnet on the drivers side of the engine bay.

2. Open the EAS housing box located on the passenger side of the engine bay and disconnect the multi-plugs from the compressor and the valve block.

3. Under the drivers seat is the location of the main BECM unit, to gain access remove the seat trim which is attached by 3 clips and one screw located behind the fuse box cover.

4. Locate the electrical posts either side of the fuse box. Remove the nut attached to the post immediately right of the fuse box and add the red wire to this post.

5. Locate the electrical posts to the far left of the fuse box (there are three to the left of the fuse box, your looking for the one with a large black wire connected to it), remove the nut and attach the black wire of the harness.

6. Looking at the front of the main BECM unit you will notice two rows of multi-plugs: Unplug the 2nd from the left on the bottom row and plug this into the harness we supplied, now plug the other end of the harness back into the main BECM.
7. Under the passengers seat is the air suspension ECU, this is accessed by removing the four clips from the trim and undoing the two self tapping screws that hold the black cover.
8. The air suspension ECU is the lowest ECU. This should be unplugged to prevent any new fault codes registering to the ECU if it is ever to be reactivated.
9. It is necessary to remove the plug from the leveling switch located in the middle of the dash. The switch can be removed without disturbing the dash but can be a tedious procedure. Two thin metal blades are required to push up the springs, while the switch is being pulled out.

10. Once out, disconnect the plug from the rear of the switch and replace the switch.

11.  Now you can reconnect the main vehicle battery, when the ignition is switched on the message display will say 'EAS manual'. 

12. The windows and sunroof will need to be reset this is done by cycling each window in tern, i.e. fully open and then fully close the window in one continuous movement, the message display will say XXXX SET.

13. The keys may also need to be resynchonised using the following procedure:

On vehicles up to 1997, resynchronisation is achieved by locking or unlocking the driverís door using the vehicle key and then with the key still in the door immediately pressing the button on the remote handset. The BeCM monitors the condition of the driverís door CDL switch to initiate the resynchronisation.

On vehicles from 1997, friendly resynchronization was introduced on vehicles with passive immobilisation. A remote handset that is not synchronised to the BeCM will automatically be resynchronised when the key is inserted in the ignition without using the vehicle key or Emergency Key Access (EKA) procedure. The resynchronisation uses a pick-up coil in the remote handset and a passive coil located around the ignition barrel. The passive coil provides a signal for the remote handset to transmit an unlock signal to remobilise the vehicle.

14. The installation is now complete, if all is working correctly, you can go ahead and refit the seat trim. If any fault messages appear on the display it is most probably the multi-plug connections. Disconnect the multi-plug and ensure all the pins are in satisfactory condition. Please ensure the multi-plug has been connected to the correct part of the BECM.

Revised 01/12/2008