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First replace the bank 2 sensor 1 O2 sensor. p0051 is that sensor heater circuit. These codes are always the O2 sensor, unless you see the wires are melted against the exhaust manifold. Once replaced the light will eventually go out. A code reader or scanner will turn it off.
Check Engine Light can be reset by disconnecting the battery terminal and and putting it back again. Make sure you have the code for the radio before you disconnect the battery terminal as the radio can get locked. You can get the radio code from any dealer. Another way to rest the check engine light is by using an error code checking meter. You will have to purchase one. It is always better to first get it checked from a mechanic for the reason of the light to come on before you reset the light as it might be an indication of a serious engine issue.
It will clear any trouble codes and in turn set the check engine light back on if any problems do exist. I recommend resetting always to tell if there is a fix needed. Its kinda like double checking the system.
As far as I know, on that year vehicle, the only way to clear the service light is to use an OBD-II Scanner. You should be able to rent one from your local auto parts store, purchase one, or bring it to a mechanic or dealer. I always rent one, plug it into my vehicle and check for codes. The code will tell you what turned the light on to begin with. This must be fixed before you can reset the light. Once the repair is made, there is an option on the scanner to clear the service light. You can just reset the light without repairs but, be ready for the light to come on again.
There are three ways to reset a check engine light.
1. Disconnect the battery, wait approximately 30 minutes, reconnect the
battery. This resets the cars computer which also reset the check engine
light. On newer OBD (on-board diagnostic) compliant vehicles this
usually does not work. See step 2.
2. Reset using an OBD II reader. When you hook an OBD II code reader up
to your vehicle, you can reset the computer using the code reader.
3. Fixing the problem. Generally the check engine light comes on for a
reason. Usually it is emission related (sensors, gas cap) or electrical
(faulty wiring). In this case the way to reset the check engine light is
to fix the problem
One way that always works is to disconnect the battery for at least ten minutes. If the cause of the check engine light turning on in the first place is not fixed, then the light will come on again pretty quickly after starting the car. To reset your service light here are the steps.
1. Get in your car and shut the door. 2. Put your key in the ignition 3. Turn your ignition key to position 1 4. Push in your Odometer reset button and hold it in while holding it move the ignition key to position 2 while holding down the odometer reset button. 5. After couple of seconds of holding the button down and the key in position 2 your service light will start to blink once that happens let go of the reset button and start the car.
first be sure that its the engine light and not the "service" light. the service light will usually illuminate if its time for an oil change. if its the service light ur owners manual should tell u how to reset it. if its ur engine light then try disconnecting ur positive battery cable for 1 minute. that should reset ur ecm and get rid of the engine light. if the engine light comes back on then have a diagnostic scan done to determine whats causing it. LJ