Code P0500 kicks on even after reset

Here's a link to a repair manual for your Nissan Pathfinder,they are 30 bucks. List Repair Manual General 2000 Nissan Pathfinder Reilly Auto Parts Here are some on Ebay,a lot cheaper. 2000 nissan pathfinder repair manual

You will need to clear the codes with an OBD-II scanner, or remove the negative battery cable from the battery for a few minutes. Just be sure the ignition switch is off when disconnecting/reconnecting the battery cable. Have a good one.

P034 is not a valid fault code.

There are two speed sensors one is called a revolution sensor that is located on the case of the transmission. You can take the driver side wheel off and see the sensor on the top of the case of the transmission. A 10mm bolt is holding it in. Easy fix

Symptoms of a P0500 DTC may include:

• loss of anti-lock brakes
• the "anti-lock" or "brake" warning lamps on the dash may be lit
• the speedometer or odometer may not work properly (or at all)
• your vehicle's RPM limiter may be decreased
• the shifting of an automatic transmission may become erratic
• other symptoms may also be present

A code P0500 may mean that one or more of the following has happened:

• The Vehicle Speed Sensor (VSS) is not reading (functioning) properly
• There is a broken/frayed wire leading to the vehicle speed sensor
• The vehicle's PCM is not correctly configured for the actual tire size on the vehicle

The simplest thing to do is to reset the code and see if it comes back.
Next, check all wiring and connectors that lead to the speed sensor. The location of the sensor depends on your vehicle. The sensor could be on the rear axle, transmission, or perhaps the wheel hub (brake) assembly.
If the wiring and connectors are OK, then check the voltage at the speed sensor. Again, the exact procedure wil depend on your make and model of vehicle.
If everything looks OK, replace the sensor.

It is telling you that there is a problem with the air bag system and you will need to have the error code pulled with a scanner to identify what the problem is. Sometimes they will start blinking after you reach a certain amount of miles(usually 100,000) because the air bag system has to be re-inspected after a certain amount of years or mileage.

OK the sensor may not be bad, you might have a broken wire to the sensor. Or a bad plug, I would by pass the sensor plug - cut it out. Cut one wire at the time and reconect using a crimp on union (bu**) conector. You may also have a timing issue, that a tune up might fix..

you need to either call the nissan dealer, or a locksmith to make a new key

are you sure it white smoke and not black smoke?

no code needed for nissan radio. check fuse.