Hi there. I have a 2006 lr3 that is giving me the HDC/Amber Brake/DSC alarms. I have a Po504 alarm, and have changed the brake light switch and also replaced the rear bulbs with factory ones. I'd like to check the ABS sensors and make sure they aren't the cause as reading some other threads that can also be a cause of this. Can anyone provide some details as to where the ABS sensor connectors are on both front and rear ? Tracing from the front wheel they disappear under the wheel arch so not sure if I need to take the wheel arches off or whether they terminate in the engine compartment somewhere. Will test with a multimeter so any advice on ohm readings would be appreciated too. Also, do I need to take the brake calipers off to replace the sensor or can it be done with calipers in place. Thanks so much in advance.

 

Under wheel arches, remove a few push fasteners and pull back, no need to completely remove the liner.