No Tach/Temp.

[Yellow 13]

My tachs not showing my RPM's when the car is on, the coolant temp sensor isnt working either.

I checked and everything is plugged in, tried 2 different guage clusters with the same results.

Is there a common fuse that both of these work off of?

 

[CRE]

They share a fuse along with other gauges. They've also got the M1 junction block in common.

http://www.cygnusx1.net/Supra/Library/TEWD/MK3/manual.aspx?Section=Main&Page=136

Does the oil pressure gauge work?