D24T.com  

Go Back   D24T.com > Technical Discussion Area > Body and Interior

Reply
 
Thread Tools Display Modes
  #1  
Old 09-25-2017, 02:54 AM
Brekizer Brekizer is offline
Member
 
Join Date: Feb 2017
Location: Fryslân (North of the Netherlands)
Vehicle: Volvo 740 Estate D24t
Posts: 38
Default Dashboard lighting

Good day,

Since a couple of weeks my dashboard lighting started to fail,
First it was just the middle of the speedo which stopped lighting, later everything.

I've noticed that sometimes the lighting starts to blink a little bit.. but I've had that twice in 4 weeks.

I'm not a hero with electric parts

Does anyone have a idea what could be the culprit?
Reply With Quote
  #2  
Old 09-25-2017, 03:58 AM
RedArrow RedArrow is offline
Senior Member
 
Join Date: Jan 2013
Location: New York
Vehicle: 1986 Volvo 745 TD
Posts: 900
Default

I had this once and it developed into a bigger problem : the alternator wasnt charging anymore.
My ignition switch also had to get replaced.

I had to carefully inspect the cluster and I found a broken connector with wires and solders that were cracked and had to be redone.
Somewhere in the lower middle area (center) there is a connector under a plastic cover that was completely broken and chipped with it a part out of the main "motherboard" lol.

I found an 87 780 cluster and used that for creating 1 working cluster out of 2clusters for the 86 745 by swapping good bertone parts into my cluster.

Check and TEST all wire routings for continuity and check solders as step 1.
Good luck to figure this annoying trouble.

My issues started showing when i steered left a lot. Like at u-turns when the wires somehow got pulled i think.
Later it developed into a real pain daily...
Reply With Quote
  #3  
Old 09-26-2017, 01:32 AM
Brekizer Brekizer is offline
Member
 
Join Date: Feb 2017
Location: Fryslân (North of the Netherlands)
Vehicle: Volvo 740 Estate D24t
Posts: 38
Default

Quote:
Originally Posted by RedArrow View Post
I had this once and it developed into a bigger problem : the alternator wasnt charging anymore.
My ignition switch also had to get replaced.

I had to carefully inspect the cluster and I found a broken connector with wires and solders that were cracked and had to be redone.
Somewhere in the lower middle area (center) there is a connector under a plastic cover that was completely broken and chipped with it a part out of the main "motherboard" lol.

You mean in the area around the dashboard/clocks itself?

I found an 87 780 cluster and used that for creating 1 working cluster out of 2clusters for the 86 745 by swapping good bertone parts into my cluster.

Check and TEST all wire routings for continuity and check solders as step 1.
Good luck to figure this annoying trouble.
Thanks, I'll try this must be fixed.. this is annoying, can't even see how fast I'm going in the dark.

My issues started showing when i steered left a lot. Like at u-turns when the wires somehow got pulled i think.
Later it developed into a real pain daily...
Here it has nothing to do with steering, the blinking even occurred when driving in a straight line.
I'll see if I can fix it, If there are updates I will post them here.
Reply With Quote
  #4  
Old 09-26-2017, 09:59 AM
ngoma ngoma is offline
Supporting Member
 
Join Date: Nov 2009
Posts: 1,351
Default

Quote:
Originally Posted by Brekizer View Post
I've noticed that sometimes the lighting starts to blink a little bit.. but I've had that twice in 4 weeks.
Was that ALL the lamps in the instrument panel, heater controls included? Or are certain lamps blinking? Or are certain lamps dying one by one?

Some of my instrument panel illumination bulbs (the ones that plug into the little plastic bayonet housings)(not the smallest "grain of wheat" bulbs) had intermittent failures. Solution was cleaning and polishing the bayonet copper contacts and the corresponding copper traces on the flexboard that they make contact with.
__________________
1985 744 gle d24t
1985 745 gle d24t
Reply With Quote
Reply

Thread Tools
Display Modes

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 Off

Forum Jump


All times are GMT -8. The time now is 03:53 AM.


Powered by vBulletin® Version 3.8.10
Copyright ©2000 - 2024, vBulletin Solutions, Inc.