I need wiring diagram 99 LX470

[Leandro]

hey guys
Anybody have a wiring diagram for a 99 LX? I'm troubleshooting some issues with my gauges that I believe are cause by a short somewhere in the harness.

Thanks in advance.

 

[jLB]

Yep, I've got one.

They're fairly inexpensive compared to some of the other manuals:

Pardon Our Interruption...

If you can describe what you're looking for, I can try to scan a few relevant pages...

 

[Leandro]

I need to see where all the cables from the sensors feeding the instrument cluster are coming from, which harnesses and colors. I have a short somewhere. The 4 small gauges (oil press. coolant temp, fuel and voltage) are wacked.
When I start the truck the voltmeter goes all the way up, outside the scale, the other 3 do the oposite.
I doubt the issue is on the cluster itself. Probably there's one of the cables shorting to ground or V+.
All started when I welded the rocksliders.

 

[jLB]

From dealing with a YellowBox speedometer calibration box, I don't think it will be quite that simple. For the VSS, it is sent to the ECU, and the ECU forwards the VSS signal to the speedometer and odometer.

The "Combination Meter" pages:

 

[Leandro]

Thanks. I'll look into it this weekend.

 

[jLB]

To determine if it is in the "reading", or the "displaying", you may want to plug in a ScanGauge (or equivalent) and see what it sees.

 

[Leandro]

To determine if it is in the "reading", or the "displaying", you may want to plug in a ScanGauge (or equivalent) and see what it sees.

I have an obd2 reader and everything is good. That's actually what I'm using to keep an eye in the coolant temp.
It's just those 4 litle gauges in the corners. I hope is not the cluster because that is a very expensive part to replace.

 

[Odog2731]

We are trying to trace a parasitic drain on the battery and we found 2 wires near the interior fuse block that are spiced by a previous owner. Brown with a green stripe. can you advise what those go to.

 

[saucebox]

We are trying to trace a parasitic drain on the battery and we found 2 wires near the interior fuse block that are spiced by a previous owner. Brown with a green stripe. can you advise what those go to.

LC100 Workshop Manual

Landcruiser 100 Series Factory Workshop Manual

lc100e.github.io

The EWD is buried in there, but it's there. Find Electrical Wiring Diagram > Overall Electrical Wiring Diagram [LHD]

 

[Ayune]

All started when I welded the rocksliders.

Well there you go. Likely not a short on any wire, but fried actuators in the cluster. You may find this thread helpful:

2004 Land Cruiser Gauge Cluster FIXED! How-To

I had an issue that a number of others are experiencing with their 100 series. Four out of six of my gauges worked only about 10% of the time. The rest of the time they were just dead. Research led me to believe that my stepper motors needed replacing. These are little "tomb-shaped" (black in...

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