Charge Relay ? (1 Viewer)

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Jan 11, 2010
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Location
WA & BC
1984 and the 1983 BJ60 both have a relay , One is marked Charging relay , the other truck is just a black 6 wire plug. I have the downloaded the FSM , plus Max Ellerys Landcruiser book for the wiring diagrams .
I have not seen this relay shown in any diagram.
I have run an avr test (no ripple) ,it shows charging around 14V 1800 rpm, and looks steady. Great , go for the first drive of the day , alls fine , as the temp starts to show on the gauge , warm air from vents (this is the timing it seems) I notice that the fan is working extra fast , headlights bright volt gauge is 16 volts @rpm 1800-2500 .

I pull over , idle it , pull throttle out to 1800 , voltage is now regulated to 14 or so on the cluster. So i wait, nothing .

Carry on , after two mins or more up to ten , i can hear the fan pickup speed , check voltage cluster 16 volts again. Cycle key while driving to off and back on , voltage is steady at below 14 till the glows finish I think.(not really sure if its the glows) but after say 10 -20 seconds the voltage is back to 14 , It can stay there or go to 16. even while at 16 volts , say after all the fooling and pulling over , I just drive it for an hour and it settles down.
There is no real set pattern , while driving across Canada , I noticed this a few times , 15 hrs drive at a time.

What Im trying to figure is what this charging relay is all about. I have not been able to get this alt to do the overcharge while testing. this is an internal reg and a stock alt. 200kms on this rotten (from rust) truck.
Am i just missing this relay in the diagrams or the diagrams are of the FJ usa units. All i see are external voltage regulators on the diagrams , but i have seen mentioning of a charge relay , and repairing them with a cold solder joint. But i would love to understand and see the method to the madness of the wiring schematics..

VT
 
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do you mean the charge lamp relay?

Daryl
 
I guess I do.
I just stood on my head with a mirror and saw the word lamp relay (it is a four wire) I see a 6 wire plug above that . I'm still trying to get my head around ground switching and the rest of Toyota and why ?

I first was thinking that this Charge Lamp Relay was only saying Charge Relay, now that is for the lamp , Ill look deeper into that.
This must just be for the diesels , since i cannot locate it on and FJ wiring sheets I have enlarged.

VT
 
I'll look at my diagrams but if you are having too much voltage it is the regulator - nothing else. If you are having too little charge it is the alternator (inside diodes and stuff) or something else in the wiring.
I'll check my FSM and see what else is in line of that.
 
Sir / Fantom

I like to have most info before i'm left with a hanger queen.
any wiring schematic I have seen on the 60 are incorrect on this "charging lamp relay"..

They all seem to show and normal 61+ or charge/dash light feeding the Excited / Field system , But I have this "charge lamp relay" that is not shown on any schematic. YET!!

SO !! I've had enough , pull it apart and see whats up . EZ , to almost 2 EZ , Last Bubba in there greased the back of the brushes or top of the reg , plus left the tails too long (on the brushes) on some bumps it would make connection (I guess) . Checked conductivity of grease , real bad , not even SDG.

Cleaned , replaced brushes again , cleaned all connections and replace a few rusted crimps . so for a dollar worth of brushes , cleaned the bubba / hack repair , installed back as before with new brushes only (old were long but soft and cheap ), It now has max voltage 13.9 @ 55 amps.

I was over thinking this as it had a battery normalizing system seeing a "charge relay" after absorption ratio.

SO if anyone finds a real wiring schematic , Please pass along and lets get this Charge Lamp Relay figured.
I have a FJ harness here , but haven't had a chance to look into it , or if it is used.


Bubba also got into the Throttle body , installed a 1/8 taper fitting with JB weld, plug in the venturi hole ??? Im glad it didn't move into a cylinder.











VT
 
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IIRC my fj62 also had a charge lamp relay. I know both BJ60 models did. My understanding is the alt will not charge if the relay is bad/not installed, this is what I was told anyways! Apparently it has something to do with :hmm: damn can't remeber right now:doh:
But it is definitly shown in the OEM manual I have. It is only installed with the internally regulated alternators though. I am going to have to deal with it soon as I have a bj60 alt put on my bj40 and I need to wire in the charge lamp relay to make it work AFAIK. I think it has to do with providing a ground path for the regulator.

Fawk knows! I need to look at the wiring diagram also

Daryl
guess I do.
I just stood on my head with a mirror and saw the word lamp relay (it is a four wire) I see a 6 wire plug above that . I'm still trying to get my head around ground switching and the rest of Toyota and why ?

I first was thinking that this Charge Lamp Relay was only saying Charge Relay, now that is for the lamp , Ill look deeper into that.
This must just be for the diesels , since i cannot locate it on and FJ wiring sheets I have enlarged.

VT
 
here are some pics
2011 9.jpg
2011 10.jpg
2011 11.jpg
 
Dang fjbj40, Thats a nice schematic. Look at the size . I can almost see the wire colour from your picture !!!
All of the ones I have here are in micro sized. Blowing them up they get blurry , so Im using a magnifier and readers just to see the printing.

If that is a REAL manual , any chance of scanning it into a PDF file ??
I could , but were on opposite coasts.

VT


PM sent

Just to show fjbj40 what I was working with.

After I get to really see what the schematic looks like , I should have a real firm grasp .
I'm am use to Euro ones , there laid out in a different format ,But electrons are electrons .

VT
1981BJ_60_wiring.jpg
 
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fjbj40 , Great manuals . I'm Hoping , checking e-mails

How may I help here?? East coast still take BC bucks ?

VT
 
Just on a side note, charge lamp relay doesnt really serve any function other than lighting the charge indicator light on your dash if something goes kaput... In most cases it just causes the "christmas light" phenomena which is why many have removed it...
 
PDF sent to your shaw account.

:cheers:
Daryl

fjbj40 , Great manuals . I'm Hoping , checking e-mails

How may I help here?? East coast still take BC bucks ?

VT
 
Great I'll get to have a look when i get home.
With a full sized real wiring Diagram that i can read, I should now have the chance of getting my head around some of the Toyo wiring gremlins.

Thank you Sir, Hopefully i'll able to carry on a discussion on with lostmarbles with this EDIC system also.

VT
 
Mr fjbj40 sent me a BJ60 wiring Diagram , that i can read the wire colours also !!!!

I NOW have dash lights , a non clicking relays EDIC controller , and real headlights I can see the road.

This truck had been goof with so much . Frustration is spelt RUST & CORROSION , add bypass goop , or fudge it and that is what i had to deal with. Somehow the fuel controller was linked in with a relay for auto running daylight headlights ??? And what sucked was they used yota spare wires from another car ..
If it was just scotch locks and crap-tube wire , I would of pegged it.
I pulled a birds nest out after the cleaning of all terminals , plugs etc, used terminal joint protection , plus elbow grease , got most of the circuits up .

Needed liquid wrench just to remove the headlights from there holders, glad i had spare trucks for the headlight pots , adjusting screws etc.
Rusted Trucks Suck. This is the doner , engine , sizing rig, need to keep it drivable till recipient is ready .


Thanks again fjbj40, and all for the help.

,Yes there bright , and iI didn't flash ya's


VT
 
Driver side (left) kick panel on my HJ60. But it's been a while since I was in there, so it's possible it's in the other side kick panel.

One of the kick panels anyway.

:hillbilly:
 
Driver side (left) kick panel on my HJ60. But it's been a while since I was in there, so it's possible it's in the other side kick panel.

One of the kick panels anyway.

:hillbilly:


There's not a nook or cranny left to check and it's nowhere to be found.

While this may not be the best thread to pose, I'll attempt before authoring or getting out the gas can an matches.

1985 24V BJ75 Originally

Never saw the 3B alternator, but the chassis harness has a 'black' plug with what I assume to be B, IG, L.....but can't excite an HZ 24V alternator.

The 'charge' lamp is in a state of inoperability, with alternator connected.

The HZ sedimenter is unhooked, for lack of anywhere obvious the 3B harness even had. (Mentioned only because some EWDs show in same circuit as charge lamp).
 
There's not a nook or cranny left to check and it's nowhere to be found.

While this may not be the best thread to pose, I'll attempt before authoring or getting out the gas can an matches.

1985 24V BJ75 Originally

Never saw the 3B alternator, but the chassis harness has a 'black' plug with what I assume to be B, IG, L.....but can't excite an HZ 24V alternator.

The 'charge' lamp is in a state of inoperability, with alternator connected.

The HZ sedimenter is unhooked, for lack of anywhere obvious the 3B harness even had. (Mentioned only because some EWDs show in same circuit as charge lamp).
I know this is an old post, but did you ever find your Charge Lamp Relay location? I’ve been trying to to find mine. I’m having exciting alternator issues, this is supposedly the culprit, but I can’t find it anywhere.
 

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