Infamous Grounding issues

[PanhandleFJ]

I have an 88 FJ62 and I've bit by bit ran new ground wires to the ground location on the drivers side pillar. But I still have the symptoms of bad ground wires for things such as the heater fan, washer fluid switch, dimming dash lights, etc. All the weird things that happen.
My question is what is a permanent fix or upgrade. I'm willing to remove the dash or whatever to run wires where needed. I'm not an expert on electrical issues but I have the diagrams and can usually figure things out. Since it's such a common problem I'm wondering what solutions you guys here have come up with?

Thanks!

 

[BurntToast]

Thread 'FJ60/FJ62 Heavy Duty Battery Cable Sets'

Dec 17, 2009

With the change to the forum and archiving of the old small business storefront threads, here is a link to the new thread: Heavy Duty Battery Cable Kits (FJ40, FJ55, FJ60/62, FZJ70/75, FJ80, FZJ80, UZJ100) - https://forum.ih8mud.com/classifieds/heavy-duty-battery-cable-kits-fj40-fj55-fj60-62-fzj70-75-fj80-fzj80-uzj100.564/

The kit costs $155.00 shipped (within US). International shipping is available.

The kit includes 5 cables and battery terminal connectors. This kit fits FJ60's and FJ62's. See below for additional kits (FJ40, FJ80 and FZJ80)

Kit includes:
Battery...

• Fourrunner
• Replies: 265
• Forum: Small Business Storefront

• 

This would be a good start, but tracing the grounds for each component affected to its nearest ground point would be prudent.

1988 FJ60 Wiring Diagrams - Land Cruiser Tech from IH8MUD.com

1988 FJ60 Wiring Diagrams - Land Cruiser Tech from IH8MUD.com

www.ih8mud.com

 

[PanhandleFJ]

Thread 'FJ60/FJ62 Heavy Duty Battery Cable Sets'

Dec 17, 2009

With the change to the forum and archiving of the old small business storefront threads, here is a link to the new thread: Heavy Duty Battery Cable Kits (FJ40, FJ55, FJ60/62, FZJ70/75, FJ80, FZJ80, UZJ100) - https://forum.ih8mud.com/classifieds/heavy-duty-battery-cable-kits-fj40-fj55-fj60-62-fzj70-75-fj80-fzj80-uzj100.564/

The kit costs $155.00 shipped (within US). International shipping is available.

The kit includes 5 cables and battery terminal connectors. This kit fits FJ60's and FJ62's. See below for additional kits (FJ40, FJ80 and FZJ80)

Kit includes:
Battery...

• Fourrunner
• Replies: 265
• Forum: Small Business Storefront

• 

This would be a good start, but tracing the grounds for each component affected to its nearest ground point would be prudent.

1988 FJ60 Wiring Diagrams - Land Cruiser Tech from IH8MUD.com

1988 FJ60 Wiring Diagrams - Land Cruiser Tech from IH8MUD.com

www.ih8mud.com

Ok. When I did my body off frame work I replaced and added new grounding straps in all places. It could be just one ground from one component that's affecting everything. But as far as you know there's no common culprit to focus on?

 

[diesellibrarian]

There are a couple of ground buses behind the instrument cluster that can get corroded or (as in my case) burnt by a short circuit. Each of those buses ground several circuits, so if there's resistance at one of the connectors, it can cause all kinds of weird and wonderful problems.

I'll see if I can find a pic of what I'm talking about.

 

[diesellibrarian]

Here ya go. See that orange connector? That's a common ground bus. It's also burnt. I fixed it by removing the plastic bottom of the connector, extracting the male multi-prong connector, cleaning it up, reinstalling and re-wrapping with e-tape. After doing that, my weird electrical symptoms went away.

 

[PanhandleFJ]

Here ya go. See that orange connector? That's a common ground bus. It's also burnt. I fixed it by removing the plastic bottom of the connector, extracting the male multi-prong connector, cleaning it up, reinstalling and re-wrapping with e-tape. After doing that, my weird electrical symptoms went away.







View attachment 4135876

Alright that's good clue, thanks. I'll check that out. I appreciate it.