Hi everyone , need some help , recently got myself and isf and after a few days the display on top stopped showing any data , but it lights up . Any ideeas where i start to look , fuses , connectors , any modules that might have gone wrong ? Any help would be appreciated

 

I would try a hard reboot, disconnect the negative battery terminal for 10 minutes. If that doesn't work the cluster may have partially failed.

 

Already tried that , nothing , car has been sitting for at least 6 months with no use before i got it , is there any fuses for the cluster ?

 

dumb question but I thought I'd throw it out...mine reads a blank screen on one display cycle. Have you hit the button on the steering wheel to see if it will cycle to a different "working" screen?

 

Tried that , still nothing

 

Illumination and data are unrelated electrically. If it's not responding to the steering wheel switch, it's possible there's a problem with the switch or the wiring or the spiral clock "spring" (I recently saw this on a Nissan where the ground connection broke and disabled everything on the steering wheel including the airbag), or there's an issue with the cluster itself. Truth be told, the likelihood of an internal failure at the cluster is pretty small, so I'd be looking at checking the steering wheel switch and clock spring first.

 

If your near orange county, I know someone who is very good with these issues. He fixed my navigation screen and other electrical issues I had on my 2008 isf.

 

Forgot to mention earlier. He is in Orange county California.

 

Just to mention , everything on the steering wheel works beside the display thing , anyway the LCD screen lights up, there should always be data displayed on that small screen , so i doubt there is a blank screen that you can choose , im just not quite sure if there is a fuse or module for it that i should check before going to an Lexus specialist , would save me some time and money .
im from UK btw

 

Everything on steering wheel works beside display thing , i doubt its the button on the steering wheel as the display lights up , the LCD lights up ,it just doesnt show any info and i doubt that you can choose a blank scren without any info , its always displaying something, i just wanted to save some time and money before going to an Lexus specialist , maybe its just a blown fuse or module .
im in UK btw

 

The gauges display correctly? If they do, then the suggestions you propose are not the root cause. The display data is provided by the BEAN (Body Electrical Area Network) on pin 6 and pin 18 of connector A for the US and Canada models. This might be different on RHD models, but fundamentally all the data powering the multidisplay comes from these two wires. This includes the temperature, the tachometer, shift position, speedometer, LCD speed display and the multi-display. If everything else is working correctly, then the display microprocessor is faulty, or, as is the case in the earlier models, you're stuck on a blank screen (which definitely exists on the earlier model units).

If you want to check fuses for giggles, MPX-B, GAUGE, and DOME all provide power to the display. If any of them were bad, you would be missing a major component of operation. MPX-B is in the engine compartment connected to battery positive directly with a large wire. Not sure where this is on a RHD vehicle, on the LHD vehicles it's on the passenger's side in front of the battery. DOME is next to it. GAUGE is also said to be in this box, but I don't see it directly in the TIS EWD. The list of affected systems should any of these fail is quite long, so I really doubt there is a fuse problem.

 

so i’ve checked the codes , thats what i came up with , also the car won’t shift into first gear unless downshifting from higher speeds , i still didnt find a good specialist in UK that could properly diagnose it

 

But the speedometer works and displays both digital and analogue?

The signal path for P0500 is Skid Control ECU to Combination Meter to ECM. P0500 means the ECM is not receiving the speed signal from the Combination Meter. Given your blank display, this is pretty damning evidence there is a fault in the Combination Meter. Removing the Combination Meter and checking the connectors isn't terribly challenging if you have basic hand tool skills.

To your knowledge, has the Combination Meter ever been removed from the dash? It might be possible there is a wiring fault like a connector not fully seated if this is true. If it is not, then I'd be looking for another Combination Meter. Is yours Euro RHD, Japan RHD, or a LHD variant?

 

yes , everything works fine , memory seats aswell don’t work , and cruise control doesn't work which i guess is because of display

 

i took of the cluster to check for any issues , like loose connector or water damage , everything looked fine to me , i didn't split the cluster as i got no knowledge of wiring and things like that , my car is UK one , i guess EU RHD