What could be wrong with my 2000 Mazda MPV the battery is good the dashboard lights don't turn on so it doesn't start what could be the reason

SOURCE: how do I replace alternator in mazda mpv 2000?

Typically an alternator is an easy fix. It requires removal of the belt from the engine running it, and a few bolts that attach it to the engine.

Because of the engineering with the 2000 mpv, it is a very difficult fix, and one that requires removal of the transaxle and exhaust manifold, as well as removal of the lower engine mounts. It will take a qualified Mazda mechanic 3.5 hours to do the fix - you can (at least) triple that amount of time as a DIY project (assuming you have the right tools).

SOURCE: Battery light on dashboard is on

could be a loose connection of battery cables or corrosion where the battery meets the cables, also could be your alternating is appearing good, but slowing going out, somewhat draining the battery, also make sure the fluid level in the battery is good, or have someone check the level and the color should be green or your battery is going, they only last 4 or 5 years, or less depending on the usage of the truck.

SOURCE: My 2000 Mazda MPV heater fan works for 4 not for 1

You need to replace the blower motor resistor,it's in the heater box.Number 4 bypasses the resistor and all the other speeds go through it so it's the most likely problem.

SOURCE: i have a 2000 mazda

p0106 is barometric sensor code and is caused by a faulty egr boost sensor, egr boost sensor solinoid, or faulty vaccume line to either devise and last a bad pcm. check vaccume lines first then components, also there is a small filter on egr vac sol make sure its clean

SOURCE: Mazda 2 Dashboard Lights

Just rotate the small knob at the left of your dashboard to the right. This will increase the lights of the dashboard.