On a 2001 echo the light came on the dash o/d off what does that mean

Could be the dash light dimmer switch is off or defective.

Your back up light switch is stuck. Where you shift into rev. down column under dash or under console shifter. Free and oil

Hope this helps Mike

At the user end it is not possible to replace the heater core at home.
It requires to remove the complete dash board assembly, and many other relating parts and sub assemblies.
Better to get the job done by some workshop.

fuse or bad body ground check all ground's on the car

most of them are under the dash on passenger side of car i scrapped a 2002 echo and that's where it was located

Is it possible you did not get it adjusted correctly ?

All of those components are probably on the same circuit. I would guess that there is a short or bad ground connection somewhere. If there is an aftermarket radio, fuzzbuster, or other accesory that was tied in, it could be that's the problem.

the bulb could have been bad, yet the aftermarket stereo wiring takes voltage from your dash, hence the illumination/dimmer. really dont need those wires. they hook up to your dash lighting, and draw power from your dash, take those wires out and see if any changes. Id first take the wires out, if no change then the bulbs are probably bad.

yes there is a fuse inside the car drivers side fuse panel.check the one under the hood driver's side and one under the dash where the radio is

The EVAP cannister is part of the emissions system. Excess exhaust runs thru it-purge flow is when it is released. Check all the vacuum lines going to it. I don't you will find a parts listing for a purge flow valve or vent or solenoid. Your light will probably come on again shortly.