Upshift.
The yellow arrow pointing up is to tell you when it is time to up shift a manual transmission.
If a 1999 Jeep Wrangler dash gauge stops working, check the fuse. The fuse may have blown out and will need replaced.
That means it's time to upshift. The arrows prompt you to shift points that maximize fuel economy.
Behind the glovebox.
4X6
If it is a manual transmission, I believe it lights up indicating that you must up-shift for better fuel economy.
Driver's side, under the dash.
The 1994 Jeep Wrangler dash pad is secured with eight retaining clips. Pry outward on each retaining clip and the dash pad will come off.
Left front corner of dash, drivers door jamb,...
The plug is under the dash on the driver side.
The front speakers in a 1994 Jeep Wrangler YJ measure 4 inches by 6 inches. These speakers are in the dash of the vehicle.
A person can rest the check engine light on a Jeep Wrangler by disconnecting the battery. This will also rest other warning lights on the dash.