GX460 & GXOR B.S. thread

[Roody]

If anyone is reading this and wants to buy a 2018 GX460 w/<43k miles and a s***ton of upgrades, I would be happy to sell mine. All issues seem to be resolved, I just need a change and though I ****ing love this truck it's just time for something new.

(Just posting this here in the event that any lurker is doing research before buying a GX460 and is looking for a GX460 with mods... realistically I know I'll have this thing for a lot longer, but if there's a buyer looking for a truck outfitted like this I'm ready to let it go)

 

[Roody]

Aaaaaand just like that the GX sale is temporarily on hold.

Had no issues with the truck over the last couple weeks. Drove it as much as I could. Today the warning lights came back, so swapping the OEM infotainment console back in didn't do the trick.

Back to the drawing board.

 

[Roody]

My GX electrical saga continues.

I would loooove some help getting to the bottom of this. Short of driving 1.5 hours to a friend's house to use his Techstream or paying someone to diagnose the issues, I'm at a loss. It's driving me insane (and killing my love of this vehicle). 2018 GX460 base, for context.

Here's the situation in a nutshell:
Occasionally, without seemingly any reason whatsoever, I get a full gauge cluster worth of warning lights. Listed in no particular order, they are:

• Check Headlight System
• Transmission Fluid Temperature High
• ABS
• BRAKE
• Traction Control Malfunction/Off
• KDSS

Additionally, the gauges sweep back and forth then the speedometer stays at 0 MPH and the RPM needle bounces up/down off idle. I also get the thermometer on the gauge cluster saying E*F. The gear indicator will also vanish.

Usually, after a few minutes, everything except the the traction and ABS warnings will disappear. Sometimes everything stays on until I park.

The weird thing is that, most times, the warnings are completely gone when I restart the vehicle a few minutes later. Weirder is that the truck drives perfectly normally even when all of the warnings are present.

There really seems to be no rhyme or reason behind when things come and go. Any pattern I thought was present-- it happening under hard braking, etc-- seems to not hold water. Today's round of warnings did come when driving over a particularly rough surface, for whatever that's worth.

Things I have checked/tried:

• A/C drains (clear)
• Removing all auxiliary accessories leads from the battery (no change)
• Replacing battery terminals (2x)
• Reading codes - countless, and pointing nowhere; other times, none are stored
• Visual inspection of all ABS/brake/wheel speed sensors - all seem ok, at least from what I could tell
• Swapping aftermarket (Hamilton) infotainment back for OEM unit (no change)

All of the above have netted no fix.

I have another code reader coming tomorrow (the one from this thread: https://www.clublexus.com/forums/gx...-obd-fusion-link-vehicle-diagnostic-tool.html) which will hopefully bring some further help, but so far I continue to hit dead ends. My internet searching has only found so many threads/posts dealing with a similar issue, and a lot of them have no update from the OP who had the issue in the first place.

Any help is greatly appreciated.

 

[r2m]

My GX electrical saga continues.

I would loooove some help getting to the bottom of this. Short of driving 1.5 hours to a friend's house to use his Techstream or paying someone to diagnose the issues, I'm at a loss. It's driving me insane (and killing my love of this vehicle). 2018 GX460 base, for context.

Here's the situation in a nutshell:
Occasionally, without seemingly any reason whatsoever, I get a full gauge cluster worth of warning lights. Listed in no particular order, they are:

• Check Headlight System
• Transmission Fluid Temperature High
• ABS
• BRAKE
• Traction Control Malfunction/Off
• KDSS

Additionally, the gauges sweep back and forth then the speedometer stays at 0 MPH and the RPM needle bounces up/down off idle. I also get the thermometer on the gauge cluster saying E*F. The gear indicator will also vanish.

Usually, after a few minutes, everything except the the traction and ABS warnings will disappear. Sometimes everything stays on until I park.

The weird thing is that, most times, the warnings are completely gone when I restart the vehicle a few minutes later. Weirder is that the truck drives perfectly normally even when all of the warnings are present.

There really seems to be no rhyme or reason behind when things come and go. Any pattern I thought was present-- it happening under hard braking, etc-- seems to not hold water. Today's round of warnings did come when driving over a particularly rough surface, for whatever that's worth.

Things I have checked/tried:

• A/C drains (clear)
• Removing all auxiliary accessories leads from the battery (no change)
• Replacing battery terminals (2x)
• Reading codes - countless, and pointing nowhere; other times, none are stored
• Visual inspection of all ABS/brake/wheel speed sensors - all seem ok, at least from what I could tell
• Swapping aftermarket (Hamilton) infotainment back for OEM unit (no change)

All of the above have netted no fix.

I have another code reader coming tomorrow (the one from this thread: https://www.clublexus.com/forums/gx...-obd-fusion-link-vehicle-diagnostic-tool.html) which will hopefully bring some further help, but so far I continue to hit dead ends. My internet searching has only found so many threads/posts dealing with a similar issue, and a lot of them have no update from the OP who had the issue in the first place.

Any help is greatly appreciated.

If you've got a laptop, for what you'd spend on gas going to you're buddy's home to use his Techstream, you can get your own on Amazon: Amazon.com - https://www.amazon.com/AutoE-Vehicle-Standard-Diagnose-Diagnostic/dp/B07JYSPBGT
That's where I picked mine up from. (may be a different vendor now since I've had mine about a half dozen years or so.)

 

[Roody]

If you've got a laptop, for what you'd spend on gas going to you're buddy's home to use his Techstream, you can get your own on Amazon: Amazon.com - https://www.amazon.com/AutoE-Vehicle-Standard-Diagnose-Diagnostic/dp/B07JYSPBGT
That's where I picked mine up from. (may be a different vendor now since I've had mine about a half dozen years or so.)

That's just the cable though, right? Or does it include the Techstream software?

 

[r2m]

That's just the cable though, right? Or does it include the Techstream software?

If you scroll through the product photos, you'll see a mini-CD, same as I received. That will (should) have the TechStream software on it.

 

[Roody]

Codes after buying the scanner @Acrad recommended on the ClubLexus thread

 

[aztoytec]

Can you look at the freeze frame and see what the voltage was when it threw the codes.

 

[Roody]

Can you look at the freeze frame and see what the voltage was when it threw the codes.

Maybe? I'll have to look into how to do that

This is from a few minutes ago

 

[aztoytec]

On the bottom of that code list there is a “freeze frame” icon or button. That may tell you what the vehicle was doing when it threw the codes (rpm, speed, voltage, temp, etc). Really could help diagnose certain issues.

 

[Hiluxforever]

Shouldn't it be cloawe to 13.5-14 volts if its running?

 

[Roody]

On the bottom of that code list there is a “freeze frame” icon or button. That may tell you what the vehicle was doing when it threw the codes (rpm, speed, voltage, temp, etc). Really could help diagnose certain issues.

Ah ok I'll check that out later

Shouldn't it be cloawe to 13.5-14 volts if its running?

Battery was tested with the engine off, as per instructions from the tester

 

[Hiluxforever]

My bad

Working on a fuel pump issue on a cat 175-20. Will be my first big diesel engineering project. I have mainly just overseen maintenance and done some light emissions controls trouble shooting. They are chonks.

 

[Acrad]

 

[Hiluxforever]

Looks like i switched to M1 just in time.

 

[Hiluxforever]

Going to drill my caliper bolts and safety wire them.

 

[Banandalorian]

@Hiluxforever is that in lieu of Locktite or in addition to Locktite?

 

[Hiluxforever]

In addition to locktight

 

[r2m]

Going to drill my caliper bolts and safety wire them.
View attachment 4191526

View attachment 4191527

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Have you had an issue with those bolts backing out and/or not staying tight?
Or, it's the wife's time-of-month and you need to stay in the garage tinkering to avoid her wrath?

 

[Hiluxforever]

Have you had an issue with those bolts backing out and/or not staying tight?
Or, it's the wife's time-of-month and you need to stay in the garage tinkering to avoid her wrath?

Its pooped out 3 pairs in the last 4 months.

The axle oil is fouling the loctite.

I can not afford to service the axle right now, I am about 15k into my truck just this year, mostly maintenance, some mods.

I also am seriously considering a housing upgrade while attempting to retain KDSS. So putting it off for 6 months to a year would be ideal.

Should have a different commuter in a month.