FJ62 battery draw diagnosis...normal or not?

[mongoose2231]

Glow plug rail seems fine, better terminals are clean and free of deposits, fusible link is fine. Still thinking it's the wiring

 

[Slow Left]

Suffice it to say I'm no electrical genius, bear with my simpleton ass. I've been reading a bunch of "battery drain" threads looking for answers to what I suspect is a parasitic battery draw my fj62 has had for a loooong time.

I set my digital multi meter to DC mA, disconnected the positive battery cable and jumped the meter between the pos battery post and pos cable. I got a consistent reading of 0.16 mA (first pic).

Reconnected battery cable.

Pulled every fuse one by one and jumped fuse terminals with meter. All read 0(zero)mA, with two exceptions. The 15A EFI fuse in the lower left corner of fuse bank gave me 0.15 mA...further reading in the threads indicates this fuse is always hot and controlled by the EFI relay by air cleaner. Had my daughter switch the ignition key back and forth and I could feel the EFI relay cycling on and off, so it appears to be ok.

The other exception was the usual culprit Dome fuse (manual lists it controlling "Interior light, luggage compartment light, inspection light socket, clock, key reminder buzzer") It also rang up 0.16 mA(second pic). This fuse as I understand should be "hot" too since it runs the clock. But how hot is too hot?

I pulled both EFI and Dome fuses and rechecked the battery cable, got about 0.08 mA with both out. Not sure what that means.

So, are these two fuse draws reading too much?...or within normal ranges?? Is there another way to check draw with the meter?....any thoughts or suggestions to look elsewhere much appreciated.

Don't know if you have resolved this issue or not, but check out posts #5 and #7...
https://forum.ih8mud.com/threads/fj62-dome-light-circuit-parasitic-draw.821030/

@CardinalFJ60 found the culprit to be the Cooling Fan Relay on his FJ60 (which is on the same fused circuit as the Dome Light on the FJ60)...not sure if the FJ62 has a Carb Cooling Fan or not, but you might want to check all the relays on that circuit to see if that might be causing the parasitic draw...

 

[Skniper]

I'm the OP of this thread, and sadly have not searched any further into this issue....sorry, time and other priorities get in the way. However, my current battery does not seem to be drawing down at all like in the past and it sits for extended periods right now.
I appreciate all the suggestions made, esp. by slow left. Saving this thread and I'll delve into it eventually. Currently working on front brake overhaul so I can get it inspected and legal again and start driving it more.

 

[Slow Left]

I'm the OP of this thread, and sadly have not searched any further into this issue....sorry, time and other priorities get in the way. However, my current battery does not seem to be drawing down at all like in the past and it sits for extended periods right now.
I appreciate all the suggestions made, esp. by slow left. Saving this thread and I'll delve into it eventually. Currently working on front brake overhaul so I can get it inspected and legal again and start driving it more.

No worries, S! I've got a couple issues on my rig that I have been 'working' on for some time now...one of the nice things about these Land Cruisers is that they tell us when something is wrong and then give us time to fix it...

It's just that I remember this issue being a real zinger, so when I ran across CardinalFJ60's post today, it immediately made me think of the problem you were dealing with. If you consult the Body Electrical section of the FSM, it should provide procedures for electrical testing of the relays...and that would rule out those components (or hopefully identify the underlying problem) of the circuit...