Advertise on DISCO4.COM
Forum · Gallery · Wiki · Shop · Sponsors
DISCO4.COM > Technical (D4)

Electrics half dead after waxoil treatment.
Post Reply  Down to end
Page 7 of 7 <1234567
PROFSR G
 


Member Since: 06 Mar 2017
Location: Lost
Posts: 5061

Ukraine 2009 Discovery 3 TDV6 Commercial XS Auto Stornoway GreyDiscovery 3

Waxoyl had nothing to do with it as it's petroleum spirit (Naphtha HDS) based and not electrically conductive. (characteristically similar to WD40)

For anyone in the future with similar issues replace suspect fuses, or any fuse which has governance over the start protocols or the system you are working on.

The fuses related to this particular issue were 14, 17, 19, 21, 37, 41, 61, 64, & 66, in the CJB.
The EMS fuses in the BJB need to be checked / replaced also.
Visual inspection isn't good enough as a blown fuse is not always obvious, or at the very least do a continuity test. In any case they're cheap as chips, so do yourself a favour and just replace them! Then you know you are in a confirmed electrically sound starting place! The cause of the fuse failures is unknown but I suspect either a faulty brake light switch, or the hand brake switch.

As a side note, whilst electrically neutral petroleum spirit is generally used as a carrier for the application of wax based anti corrosion products. Brake cleaner is electrically conductive in certain conditions, and should never be used on live electrical components. You can use it if there is no power to the connector/component, but you must allow it to "flash off" (totally dry) before reconnecting/testing. Thumbs Up
 yµ (idµ - eAµ) ψ=mψ

 
 
Post #23680643rd May 2024 2:16 pm
View user's profile Send private message View poster's gallery Reply with quote
Sylvester19
 


Member Since: 17 Jul 2020
Location: Central Scotland
Posts: 132

Ukraine 2016 Discovery 4 3.0 TDV6 Landmark LE Auto Indus SilverDiscovery 4

Great news and a cheap fix! You can test both sides of the fuses, little test points on top with a multimeter, powerprobe or test lamp to check if there's voltage at both sides.
  
Post #23680963rd May 2024 10:17 pm
View user's profile Send private message View poster's gallery Reply with quote
M3DPO
 


Member Since: 22 Sep 2010
Location: Notts.
Posts: 8243

England 2014 Discovery 4 3.0 SDV6 HSE Lux Auto Corris GreyDiscovery 4

Alas in this case that wasn’t sufficient, although you are testing the fuse you are not testing the fuse connection spades and this appears to be where the fault lied, they are in fact just a dry joint and deterioriate with age. Thumbs Up
 It can when others can't,
It will when others won't,
It goes where others don't. 
 
Post #23681004th May 2024 3:46 am
View user's profile Send private message View poster's gallery Post Reply
Display posts from the last:  
Post Reply Back to top
Page 7 of 7 <1234567
Jump to:  
Previous Topic | Next Topic >


Posting Rules
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum



DISCO4.COM Copyright © 2004-2024 Futuranet Ltd & Martin Lewis
DISCO3.CO.UK RSS Feed - All Forums

DISCO4.COM is independent and not affiliated to Land Rover.
Switch to Mobile Site