Builds 1991 FJ75 moving to America

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It’s weird when cruiser owners don’t stop and say hello.
That's what I think too... it's not like I'm trying to swap rubber duckies or anything, just chat cruiser builds.
 
I am sorry too Joel about your pup. Can imagine how dear it was to the kids...
 
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Ive seen that cruiser before on a YouTube channel.
Seem like nice folks.



Thanks for the link! I'm going to reach out to them on social media.

So sorry to hear about your pup Joel!
I am sorry too Joel about your pup. Can imagine how dear it was to the kids...
Sorry about you pup as well. I lost my best friend in April way too early and I still tear up all the time and miss him everyday.

We just know while they were our friends for a small part of our life, we were there friends their whole lives.

Now I’m tearing up again.

Thanks for the kind words. There's not a lot that makes a grown man cry but losing a dog gets me every time. She was a good girl. Gone way too soon. But she was pretty sick at the end, so it was a bit of a relief to have her go.

Anyway, on with the Cruiser talk...
 
I've got an electrical issue plaguing my Troopy...

When I'm daytime cruising... can be slow (35mph) or fast (65mph) I end up with a flickering battery light.

It starts out as intermittent flickering and as I keep driving it will often proceed to being permanently on. What's weird is that when I check my battery voltage (using the Victron app from my solar charge controller) it shows the voltage is just fine and in line with the state of the solar charge (either bulk, absorption, or float). What's even weirder is that if I turn on the headlights or some other demanding load, the light goes away.

It seems to be compounding... the other day the radio just died on me completely and the clock was off (lost power). Then it came back on when I turned on the headlights (a demanding load).

1. It doesn't consistently act like a loose wire issue.
2. I have drives where it doesn't occur at all.
3. No fuses blown.
4. Alternator is about a year old; OEM Toyota Rebuilt unit.

What am I missing? What should I check? Any bright ideas on nailing this down?


IMG_7769.jpeg
 
I've got an electrical issue plaguing my Troopy...

When I'm daytime cruising... can be slow (35mph) or fast (65mph) I end up with a flickering battery light.

It starts out as intermittent flickering and as I keep driving it will often proceed to being permanently on. What's weird is that when I check my battery voltage (using the Victron app from my solar charge controller) it shows the voltage is just fine and in line with the state of the solar charge (either bulk, absorption, or float). What's even weirder is that if I turn on the headlights or some other demanding load, the light goes away.

It seems to be compounding... the other day the radio just died on me completely and the clock was off (lost power). Then it came back on when I turned on the headlights (a demanding load).

1. It doesn't consistently act like a loose wire issue.
2. I have drives where it doesn't occur at all.
3. No fuses blown.
4. Alternator is about a year old; OEM Toyota Rebuilt unit.

What am I missing? What should I check? Any bright ideas on nailing this down?


View attachment 3902557

Possibly the charge lamp relay. 27790-13010. Discontinued but there may be used floating around.
 
If other things check out, I would say Alternator, but since you say it's a recently installed rebuild... but even the Toyota remans can sometimes fail...

FWIW, the Charge Lamp Relay can be easily opened (careful! very brittle plastic) and cleaned with DeoxIT. Sometimes works. CRL is what triggers that Alt/Charge MIL. Have no idea where it is on your truck. On FJ60s LHD, it's under the pass kick panel.
 
Possibly the charge lamp relay. 27790-13010. Discontinued but there may be used floating around.

The 3F Engine manual gives me this diagram for the charging circuit. Is it just simplified hence not showing a charge lamp relay?

F_3F_1985-1988_engine.jpg
 
If other things check out, I would say Alternator, but since you say it's a recently installed rebuild... but even the Toyota remans can sometimes fail...

FWIW, the Charge Lamp Relay can be easily opened (careful! very brittle plastic) and cleaned with DeoxIT. Sometimes works. CRL is what triggers that Alt/Charge MIL. Have no idea where it is on your truck. On FJ60s LHD, it's under the pass kick panel.
If it's got one it'll be tucked away with a bunch of the other relays to the left of the radio and HVAC controls... I'll dig in.

Would this also manifest in issues with the radio/clock? OR am I maybe playing with two issues? The radio/clock one is more recent... so perhaps they aren't linked.
 
Shows behind the glove box for RHD. I don't see a LHD diagram. I can't comment on the wiring diagram. The parts catalog lists a charge lamp relay for the 3F application.

Screenshot 2025-05-09 at 14-21-21 84-01 SWITCH & RELAY & COMPUTER diagram 1991 TOYOTA LAND CRU...png
 
The 3F Engine manual gives me this diagram for the charging circuit. Is it just simplified hence not showing a charge lamp relay?

View attachment 3902604

I believe this diagram applies to 1989 and prior. The charge lamp relay shows up in 1990.
 
Shows behind the glove box for RHD. I don't see a LHD diagram. I can't comment on the wiring diagram. The parts catalog lists a charge lamp relay for the 3F application.

View attachment 3902605

There's a relay block that will have this relay if I have it... I'm sure I do.
 
There's a relay block that will have this relay if I have it... I'm sure I do.
The relay will have the part number on the housing someplace. 27790-13010 is what you are looking for.
I found a LHD diagram. Looks to be above the glove box insert.

Screenshot 2025-05-09 at 15-54-38 84-01 SWITCH & RELAY & COMPUTER diagram 11_1984 TOYOTA LAND ...png
 
It will say 'Charge Lamp Relay' on it

1746901453776.png
 

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