What is this instrument cluster relay?

Stolen from another thread. There's a relay that I can't find anything about on the back of the cluster.

Tried looking through the FSM, but can't find anything.

Circuit Board Relay - Toyota (83271-04020)


It's the tiny white box just below the second connector

 

Never heard anything about it. Is yours bad? Why are you looking for one?

 

I'm diagnosing a cruise control code and an ABS light that doesn't show any codes. Wondering if it has anything to do with either, more wondering if it's causing the ABS to not show a code and just stay on during diagnostic

 

What C.C. code?

 

12. Followed the FSM so far, fuse and stop light switch are good. Gotta inspect the wiring.

 

Both sides of the stop light switch are good?

 

If by both sides, you mean the released and depressed positions, yes

 

So no codes when you put the ABS in diag mode by shorting the pins?

 

in the gauge cluster wiring diagram the only relay shown is for the bulb check.

 

Nope. Just remains on. Cruise control blinks for a "12" code. That's it.

I can't find a short between the gauge fuse and the ABS module (like the FSM suggests). I can't imagine the ABS ECU needs replaced. Pretty sure it works, but havent tried to lock em up

 

Well, that relay is definitely in the wiring of the cluster. Unfortunately, can't find anything in the FSM showing it. I can measure continuity to different points from the relay to the board.

 

All your grounds good? Beyond that i'm stumped. ABS and Cruise light are original type or LED's?

 

I believe so. I'll mess around with it tomorrow to determine more.

The light bulbs are original.

 

I'll take a guess what the relay is, but I'm stumped by it too. Imagine you had EVERY possible 'accessory' made for a toyota and they all have some kind of warning light filling all those empty places in your combination meter. The meter relay is there to add more amps for that extra stuff's monitoring. It's a guess is all. My stripped cheap Tacoma doesn't need it but I got one with an RPM speedo that I'm replacing my speedo only. My wiring harness plugs have a lot of missing pins, and at least one of them dead ends whatever that relay wants to do.