Now you see them, now you don't - another headlight issue - AUSJEEPOFFROAD.COM - AJOR


Go Back   AUSJEEPOFFROAD.COM - AJOR > JEEP GARAGE > XJ / MJ Cherokee


Portal Register Forums Trading Your Jeep New Garage Mark All Read

Post New Thread  Reply
 
Thread Tools Search this Thread
  #1  
Old 12-01-2017
tazwegion's Avatar
tazwegion  tazwegion is offline
Full Flexer
 
Join Date: Oct 2009
Location: Sunraysia
Age: 46
Posts: 937
What Jeep do I drive?: XJ
Likes: 15
Liked 25 Times in 11 Posts
Check out my Ride(s)
Default Now you see them, now you don't - another headlight issue

Last month the headlights seemed reluctant to turn on (but did within a few seconds), the vehicle gets mostly driven during the day and often by my partner who will sometimes provide feedback of any issues noted (getting better), she also reported unusual activity from the indicators and a tail light appeared to be blown... easy fix right?


On inspection today, all bulbs were active and operational albeit a little dusty as they have not required replacement for quite some time, during the test process the headlights suddenly failed to engage, a fuse right? wrong...

Fuses were check and the only one which was damaged was #18 which restored the rear cargo interior light, not all areas of the fuse panel had power when ignition was switched to the "Aux" position but all fuses tested AOK for continuity (with a circuit tester)


I understand that the switches can be a problem in many cases but the loading has been removed from this switch by a lighting relay modification including the use of circuit breakers.

There are no park lights, no low beam nor activity from engaging the indicator stalk (for momentary passing high beam), the switch happily operate the interior light override, no buzzer or delay action has ever been noted on this vehicle in relation to the headlamps being left on.

Will have more time tomorrow and intend to remove the switch and check what power is going in and going out, it was probably due to be replaced anyway, lucky for me I am on holidays still


FWIW I did cruise the related threads in search but there appears to be quite a spectrum of symptoms
Attached Thumbnails
Click image for larger version

Name:	interior fuse box.jpg
Views:	28
Size:	51.4 KB
ID:	75270  
__________________
"Facts do not cease to exist because they are ignored..." - Aldous Huxley

Last edited by tazwegion; 12-01-2017 at 01:56 AM.

Sponsored Posts
  #2  
Old 12-01-2017
Gildo's Avatar
Gildo  Gildo is offline
Yeah I bought another one
 
Join Date: Oct 2002
Location: WWW Wheeling
Posts: 4,675
What Jeep do I drive?: XJ
Likes: 35
Liked 78 Times in 46 Posts
Check out my Ride(s)
Default

My guess would be the switch, this is a known problem in older XJs.
__________________
1x CJ8
1x YJ
1x MJ
1x XJ
1x Jeep trailers.
1x Empty Wallet.
Likes: (2)
  #3  
Old 12-01-2017
tazwegion's Avatar
tazwegion  tazwegion is offline
Full Flexer
 
Join Date: Oct 2009
Location: Sunraysia
Age: 46
Posts: 937
What Jeep do I drive?: XJ
Likes: 15
Liked 25 Times in 11 Posts
Check out my Ride(s)
Default

Thanks for your response Gildo however unfortunately the plot thickens... the switch checked AOK on the work bench with the following observations

* continuity between the 12v input and headlight output (switch fully extended)

* the parking light fused input (all switch positions) & output

* interior lights to (switch) chassis ground.

* the fused parking light input and dash light output (including rheostat)


My next test will be to determine if power is arriving at the connector



EDIT: Well apparently after disassembling the lower dash for better access (highly recommended) there appears to be power to the switch, which leaves a minor/intermittent short or dead relays
Attached Thumbnails
Click image for larger version

Name:	DSCF3662.jpg
Views:	23
Size:	58.9 KB
ID:	75275  
__________________
"Facts do not cease to exist because they are ignored..." - Aldous Huxley

Last edited by tazwegion; 12-01-2017 at 04:29 PM.
  #4  
Old 12-01-2017
layback40's Avatar
layback40  layback40 is offline
Grumpy Old XJ Dsl Owner
 
Join Date: Jan 2011
Location: Northern Victoria
Posts: 12,431
What Jeep do I drive?: XJ
Likes: 3,312
Liked 5,928 Times in 3,895 Posts
Default

Dont give up on the switch just yet. Your test is under a no load situation. When yo put plenty of amps through it, expect to see a breakdown.
__________________
98 & 01 XJ VMs
I no longer question authority, I annoy authority. More effect, less effort. 10'000 Club
Likes: (1)
Sponsored Posts
  #5  
Old 13-01-2017
Gildo's Avatar
Gildo  Gildo is offline
Yeah I bought another one
 
Join Date: Oct 2002
Location: WWW Wheeling
Posts: 4,675
What Jeep do I drive?: XJ
Likes: 35
Liked 78 Times in 46 Posts
Check out my Ride(s)
Default

Quote:
Originally Posted by layback40 View Post
Dont give up on the switch just yet. Your test is under a no load situation. When yo put plenty of amps through it, expect to see a breakdown.
Also check the condition of the connector on the switch loose/arced connectors on the plug can do this too, it usually heats up and melts parts of the plug or switch.
There's also plenty of other connections between the plug and the relays and lamps.
__________________
1x CJ8
1x YJ
1x MJ
1x XJ
1x Jeep trailers.
1x Empty Wallet.
Likes: (2)
  #6  
Old 13-01-2017
junglejuice's Avatar
junglejuice  junglejuice is offline
MonsterMoose
 
Join Date: Nov 2003
Location: Brisbane, Southside
Age: 45
Posts: 10,446
What Jeep do I drive?: XJ
Likes: 338
Liked 1,030 Times in 638 Posts
Default

Sounds like a good time to do an upgrade.....
__________________
JJ
10'000 Club

Do it once, Do it right!

95/97 hybrid
IRO/OME/JK 2" lift
IRO SYE
ARB bar
Likes: (1)
Sponsored Posts
  #7  
Old 14-01-2017
tazwegion's Avatar
tazwegion  tazwegion is offline
Full Flexer
 
Join Date: Oct 2009
Location: Sunraysia
Age: 46
Posts: 937
What Jeep do I drive?: XJ
Likes: 15
Liked 25 Times in 11 Posts
Check out my Ride(s)
Default

Quote:
Originally Posted by Gildo View Post
Also check the condition of the connector on the switch loose/arced connectors on the plug can do this too, it usually heats up and melts parts of the plug or switch.
There's also plenty of other connections between the plug and the relays and lamps.
Indeed that is what I thought also, I suspect a relay however after rechecking the tail lamps, wiring harness and connector for a short/wire fracture everything is now operating as it should, intermittent faults are the worst



Quote:
Originally Posted by junglejuice View Post
Sounds like a good time to do an upgrade.....
Exactly however...

Quote:
Originally Posted by tazwegion View Post
the loading has been removed from this switch by a lighting relay modification including the use of circuit breakers.
Attached Thumbnails
Click image for larger version

Name:	Photo1199.jpg
Views:	15
Size:	33.0 KB
ID:	75291  
__________________
"Facts do not cease to exist because they are ignored..." - Aldous Huxley

Last edited by tazwegion; 14-01-2017 at 08:59 PM.
  #8  
Old 15-01-2017
awg  awg is offline
CrawlerStar
 
Join Date: Mar 2016
Posts: 408
What Jeep do I drive?: XJ
Likes: 48
Liked 178 Times in 111 Posts
Default

Quote:
Originally Posted by tazwegion View Post
Indeed that is what I thought also, I suspect a relay however after rechecking the tail lamps, wiring harness and connector for a short/wire fracture everything is now operating as it should, intermittent faults are the worst
I recently had several electrical faults in my spare white one, and the ONLY way to fix it was run parallel wires, EVEN though they mostly passed a continuity test!

it seemed the fault was in the wire too, but usually heat at the junction is the issue

I just squeezed a thin wires into the existing pins, leaving the old wires in place, and all was good, the new thin wire doesnt even get hot, even tho its underated...so fck me, thats weird, but fixed
__________________
Black '96 4.0 Sports auto, 310k+
White '96 4.0 Limited auto 266k 3" lift
Likes: (1)
  #9  
Old 15-01-2017
junglejuice's Avatar
junglejuice  junglejuice is offline
MonsterMoose
 
Join Date: Nov 2003
Location: Brisbane, Southside
Age: 45
Posts: 10,446
What Jeep do I drive?: XJ
Likes: 338
Liked 1,030 Times in 638 Posts
Default

Quote:
Originally Posted by Gildo View Post
There's also plenty of other connections between the plug and the relays and lamps.
Except there are no relays in the pre-updates as far as the headlightgs are concerned....
__________________
JJ
10'000 Club

Do it once, Do it right!

95/97 hybrid
IRO/OME/JK 2" lift
IRO SYE
ARB bar
Likes: (1)
Post New Thread  Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On





All times are GMT +10. The time now is 08:43 PM.




AJOR does not vouch for or warrant the accuracy, completeness or usefulness of any message, and are not responsible for the contents of any message. The messages express the views of the author of the message, not necessarily the views of AJOR or any entity associated with AJOR, nor should any advice be substituted as technical advice replacing that of a mechanic. You agree, through your use of this service, that you will not use AJOR to post any material which is knowingly false and/or defamatory, inaccurate, abusive, vulgar, hateful, harassing, obscene, profane, sexually oriented, threatening, invasive of a person's privacy, religious, political or otherwise violative of any law. You agree not to post any copyrighted material unless the copyright is owned by you or by AJOR. The owner, administrators and moderators of AJOR reserve the right to delete any message or members for any or no reason whatsoever. You remain solely responsible for the content of your messages, and you agree to indemnify and hold harmless AJOR, the administrators, moderators, and their agents with respect to any claim based upon transmission of your message(s). The use of profile signatures to intentionally mislead or misdirect any member on this forum is not acceptable and may result in your account being suspended. Any trip that is organised through the AJOR forum is participated at your own risk. If you or your vehicle is damaged it is your responsibility, not that of the person that posted the thread, message or topic initiating the trip, nor the organisers of AJOR or moderators of any specific forum. This forum and associated website is the property of AJOR.




Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

AJOR 2002 - 2017 AUSJEEPOFFROAD.COM. All corporate trademarked names and logos are property of their respective owners. Ausjeepoffroad is in no way associated with DaimlerChrysler Corporation or Fiat Jeep.
www.midlifemate.com wayalife.com jkwrangler.com ausjeepforum.com jk-forum.com canadianjeepoffroad.com 20secondgorilla.com
vB Ad Management by =RedTyger=