Originally Posted by yardsale

I like the clock. It's pretty much the same exact one that is in my sons 2001 4runner. Just like the rear window, the clock is just old school classic 4runner.

Originally Posted by T4Ranger

meter assembly arrived today... i don't know how the hell i found it on ebay for $34.99!

heading to the parts dept on monday to go over the wiring diagram and see what other parts I may need.

Originally Posted by T4Ranger

I'm going to a different parts dept. later this week... yesterday, the guy at round rock Toyota seemed very dismissive and just told me to order the entire wiring harness... FTG...

Originally Posted by Old Red

Well guys, I managed to get a hold of a 2014 trail accessory meter and get it in to a 2016 base SR5.

Good News: I have a clock still, and the compass appears to be working, but needs calibration.

Bad News: I get no read out for outside temperature, range, or avg. mpg.

I put all the requisite wiring from the instrument cluster in place as per the factory wiring diagram, but no read out in those categories, only "--" showing in their place. Is there some set up to this display required?

Originally Posted by LawnDart

That's a bummer, I'd punch at least 1-2 babies for the center dash from a pre-2015 in the current models.

Originally Posted by Old Red

So... all hope is not entirely lost @LawnDart and @007Tacoma . I have been pouring over the diagrams and messing with this darn display on the bench when I have time. I am also in the process of doing a crawl conversion on my SR5 (which is almost complete, just waiting on the MPX) I managed to get the Cluster, display, and overhead console out of a 2014, and have wired everything up on the bench. Here's a run down of the system and how it works to end up displaying Range, Temp, etc.

The ECM and Air Conditioner amplifier assembly send Range, Temp, and Avg. MPG via the CAN BUS to the Instrument Cluster. This is the same regardless of trim level.

The Cluster, Display and Drive Monitor Switch function on a LIN BUS that is offloaded from the CAN BUS. The Drive monitor switch itself ties into the main body MPX via CANN and CANP. These two CAN lines tell the 4Runner to go into CRAWL or MTS. The LIN BUS is used to display the text in the cluster and data on the center display (Toyota really wired this one weirdly. It should have all been CAN BUS for simplicity).

So to break down the LIN BUS, here is how it works:

The Drive monitor Switch is the master node that synchronizes the Cluster and center display (Both are the slave nodes), and is the go between for both. Data from the cluster is sent via the LIN BUS to the Drive monitor Switch. This Data is then sent via single wire on the LIN BUS to the Center Display.

So to update the status of this project, I can get everything to work on the bench when powered up. If this conversion is to be done, the drive monitor switch is necessary, as it is the master node. One might not have to do a full TRAIL/TRD conversion, and instead just bury this inside the center console on the SR5/Limited. The instrument cluster is another story all together. I have opened up my SR5 cluster and the TRAIL cluster to see any differences, and apart from missing the two indicator lights for CRAWL/MTS, it would seem two SMD capacitors and 8-pin chip are not soldered to the board. I have both components on order. I am going to attempt to solder these components to the SR5 cluster to make it LIN enabled, but placing the hardware on the board is no guarantee. Toyota or Yazaki may or may not have flashed all the clusters with the same software. I will know within the next two weeks...

Anyways, wanted to keep you all up to date and say that this is still being worked on!

Oh, and a few teaser pic's cause ya know...