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Parking sensor solution

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MarkBrown

Member Since: 25 Jan 2022
Location: Preston
Posts: 14

2013 Discovery 4 3.0 SDV6 HSE Auto Causeway Grey

Parking sensor solution

I've had my D4 for 2 years now and largely trouble free with the exception of a few bearable issues that I'll sort at some point. Loads of good info on the forum so thanks to all for contributing. Just thought I'd add some info on the rear parking sensor issue I had and what the solution was....

I was getting the usual error on the dash indicating take the car to the dealer. Reverse cameras unavailable etc... it was intermittent and seemed to occur more when wet.

I read the fault codes which indicated an issue with a couple of the parking sensors. I removed the bumper checked them, and cleaned all the dirt from around the rear of the sensors.

I tried some of the cheap replacements off ebay which again seemed to work intermittently so it was hard to pin down the cause.

Finally I got the wiring diagram and carried out a pin to on check on the loom and found a number of the wires had chafed through and when I looked at where it was, they had chafed against the outside edge of the rear bumper. Soldered some splices in, added some kevlar wrap and issue gone and not seen since!

I've added some photos but first time so hopefully it's worked!

Click image to enlarge

Mark

Discovery 4 HSE SDV6

8th Jan 2024 8:27 am

onetwentie

Member Since: 25 May 2020
Location: West Yorkshire
Posts: 104

2009 Discovery 4 3.0 TDV6 HSE Auto Stornoway Grey

Hi MarkBrown

Thanks for the post. I'm not sure if you uploaded any photos as I am unable to see them (I am logged into the forum).

I was about to do a search on D4 parking sensors, but saw your post under the new posts section.

Got a D4 with front and rear sensors not working. Need to run another scan on the GAP tool and see what the logs are saying.

8th Jan 2024 10:59 am

MarkBrown

Member Since: 25 Jan 2022
Location: Preston
Posts: 14

Hi, yes I've added images. They're showing on the post now when I look at it. First time I've tried it so I'm still learning

The pics show the area on the bumper the loom had rubbed causing the damage. That allowed me to narrow down my search when I'd unwrapped the wires and where i needed to put some additional protection. It's an easy check if you've got a multimeter. Low cost repair to a really annoying problem Mark

Discovery 4 HSE SDV6

8th Jan 2024 11:21 am

Martin
Site Admin and Owner

Member Since: 06 Nov 2004
Location: Hook Norton
Posts: 18561

2006 Discovery 3 TDV6 SE Manual Buckingham Blue

I've added the pics

06 D3 SE / 15 LR D90 XS SW / 88 LR 90 Td5 / 68 BMW 2000 ti
Any issues with the site let me know!

8th Jan 2024 11:27 am

MarkBrown

Member Since: 25 Jan 2022
Location: Preston
Posts: 14

Thanks Martin

Mark

Discovery 4 HSE SDV6

8th Jan 2024 11:32 am

onetwentie

Member Since: 25 May 2020
Location: West Yorkshire
Posts: 104

Thanks both!

I'm actually getting a peculiar issue on my D4, reverse (or forward sensors) don't work at all, though I get the initial beep, when putting into reverse.

Looking at the logs - no mention of parking aid sensors, and also no mention of them in the CCF section of the GAP tool.

Something else is up here..

8th Jan 2024 11:57 am

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