OK... this is from a "SOLVED" 2002 FIXYA post for:
"Temp sensor and compass not displaying on my 2003 yukon xl"
Temp sensor and compass not displaying on my 2003 yukon xl
... this info MAY help you with your 2003 Tahoe ~ it has some good tips for you!?
Here is more:
"Chevy Mechanic: Dave Nova
The problem is going to be a break in the circuit between the *SIR fuse and the yellow wire at the mirror connector. This wire travels through the relay block. You can check connections at the relay block and trace the wiring. You can also just run a new wire, it may be faster."
and
"Check for voltage on the yellow wire at the mirror connector with the key on. If there is voltage on the yellow wire then the problem is inside the circuit board in the mirror and the mirror will need to be replaced."
Dave Nova included the Fuse Block shown below in his post, but I see no "SIR" Fuse? * I just discovered it is a "Supplemental Inflatable Restraint (SIR) Fuse = AIRBAGS. The two photos below are MUCH closer to what you should have!
SEE YOUR FUSE ASSIGNMENTS HERE:
Chevrolet Tahoe GMT400 mk1 1992 2000 fuse box diagram Auto Genius
http://www.autogenius.info/chevrolet-tahoe-gmt400-mk1-1992-2000-fuse-box-diagram/
$50 please
ANTHONY
just kidding of course and by the way, MERRY CHRISTMAS 2017 as of 24 min ago!
Check fuses with test light the fuse may look good but can be a corroded contact, check grounds also... good luck
SOURCE: The rearview mirror on a 2001 Nissan Xterra.
It may be a fuse, but I think that all the dash lights are on the same fuse and if they work, then there is a bulb located inside the rear view that needs to be accessed to be replaced. I would check all fuses with key on and lights on, both sides with a test light, and if all read good then it'll be the bulb.
SOURCE: Can't get the outside temp. showing in the inside backview mirror
Check the connector that plugs into the back of the mirror and make sure it is pushed in all the way. If that is not it, look carefully at the wires going into the connector. I had one that broke off. I had to pull the pin out of the connector and re crimp it onto the wire.
SOURCE: Electro-Chromatic Rear View Mirror compass and
Have your resolved the issue stated above. I have been having the same problem. Now my display has stopped working completely.
1,629 views
Usually answered in minutes!
×