Tachometer on rav 4 not working

It's possible that the 2004 Ford Ranger's engine or the tachometer itself is to blame for the difficulty you're describing with the tachometer reading. A crankshaft position sensor issue is one typical reason for a tachometer to read high. To determine the engine's RPM, this sensor transmits signals to the engine control module (ECM). The tachometer may show a reading higher than the real RPM if the sensor is broken.
There are several possible causes for this issue, including a problem with the tachometer itself, a problem with the sensor that sends information to the tachometer, or a problem with the vehicle's electrical system. It is also possible that the tachometer cable is loose, damaged, or disconnected.
It's recommendable to take your truck to a professional mechanic to diagnose and fix the problem. In some cases, the problem might be fixable by replacing the sensor or cable, but in other cases, it may require more extensive repairs or replacement of the tachometer itself.
It's also important to note that even though the tachometer is not working properly, it does not affect the performance of the engine, but it will give you a wrong idea of the RPM, which could lead you to over-rev the engine and cause damage.

your check engine light only trips if you have a emissions issue your tach is probably Teflon gear-driven off your distributor i hope your mechanic did not charge you money to do an electrical test on a mechanical issue

According to the description on eBay a 2000 rav 4 transmission should fit in a 97 rav 4.

http://www.ebay.com/itm/Toyota-Automatic-Transmission-Tested-Good-/301940403279?fits=Make%3AToyota'Model%3ARAV4

rev as in engine revolution aka, the tach , or tachometer.
rav is toyota (lol)

the operator guide is not only clear but dead right
get its serviced,it stats.
or buy a scan tool (beg,barrows,steal, rent or buy )
and scan it, then read FSM FOR WHY, AND MORE TESTS.
or get autozone to scan it and post DTC here and see 100 wrong guesses. the gue$$ and swap, game.

Do you have the dash light dimmer control turned down by chance?

The flashing check engine light means there is a serious problem with the performance of the engine. You need to get the computer scanned for trouble codes next.

mon rav 4 2002 moteur D4 ne tourne pas au ralenti, ce qui pourrait

I have a 2006 rav4....there is a button to the left side of the radio labeled 4WD push it and 4WD light comes on on dash. It is electronic. Bad thing is that it automatically turns off the 4WD when the car reaches about 25 MPH....This means that if you want to sling mud while going through a puddle at 10MPH while reading 40MPH on speedometer...you are out of luck.

Sounds like the Orange engine light is on? If yes, the 07 Rav 4 is a great car but suffers greatly with Lambda faults. You need the code read to be sure plus there are 4 lambda's on your car.

If it is a Red triangle light staying on then it could be low brake fluid level.

I work for Toyota, and I will be glad to provide you with the actual answer:

The RAV/4 product is available in two models, a 4WD model and a 2WD model.
The difference between the two is on the 2WD model, there is no driveshaft going under the vehicle to the rear wheels, and no rear differential. There is no "RAV/2"; both models are called RAV/4's.

There is a lot of common confusuion about how the 4WD works. It is full time 4WD. In other words, it is always in 4WD. It does not "kick in/kick out/automatically engage", or anything like that. It is 4WD all of the time. But, when I say "4WD", that is sometimes mistaken for "all wheel drive", and, in this case, the RAV/4 is not "AWD". What this means is that if you raise the RAV/4 up on a lift, and put it in gear, 1 rear and the other side front tires will spin. True "all wheel drive" would have ALL 4 wheels spinning. This is not the case with the Rav/4. What the RAV does have, making up for not having "True AWD" on the 5 speed model, however, is a switch that locks the center differential in the transfer case, which, when engaged, applies a method of "locking" the 4WD system for maximum traction, but it is still not AWD. The automatic version doe not have this ability.
The last "true AWD" vehicle for purchase was a 1970's International Scout.
If you are considering purchasing a RAV/4, that is a very good investement. They hold their value quite well, and are virtually bulletproof; I do not make any "money" off my RAV/4 customers...
Just "gas station work". Very nice cars. I hope that this helps you, please feel free to comment back with any otherr questions...Glad to be of assistance.
Toyota Ed