Musza
Member Since: 14 Apr 2025
Location: Sheffield
Posts: 1
|
| Confusing parking sensor fault |
|
Hi all, new to the site and Land Rover. I have recently purchased a sweet 2006 Disco3 HSE. Only fault I can find at the mo is one relating to both front and rear parking aid sensors not working. From the info on previous posts I have some basic wiring diagrams and info. Original sensor unit YMC500313 replaced with YMC500312 which I was told was a direct replacement. Still not working. Some tests of module showed ignition feed on both units however, unit 313 has no live feed to rear and live feed from front is on terminal 4 not 2 as it should be. No feed to terminal 2. On unit 312 front sensors terminal 2 live as well as 4. No live feed to rear sensors. Once front sensor block unplugged then terminal 11 on rear sensors live as it should be. Confusing but if anyone can cast any light on this or make sense of it for me that would be amazing. Many thanks.
|
 10th Jun 2025 2:48 pm |
|
|
Flapper
Member Since: 04 Feb 2015
Location: Gloucester
Posts: 361
 
|
get an iid tool its tells you which sensors not working if you view live data.
they should all be reading 2.5 metres the one with 0 with nothing behind you is the faulty one.
get them of the flee bay 4 for £12.
The hardest bit is getting the bumper off
|
| 10th Jun 2025 3:13 pm |
|
|
Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10969
 
|
If the power is disappearing with it plugged in, it probably means there is a short caused by a faulty sensor.
Unplug the 4 sensors until power returns
Or do resistance check between black and brown
|
| 10th Jun 2025 5:38 pm |
|
|
