Borrow, rent or buy a good quality OBD2 code scanner. The good ones let you clear the codes. Any codes that WON'T clear are usually caused by a failed component that needs to be replaced.
Trouble code PO151
You need an OBDII scanner to retrieve the codes.
The average Nissan automobile has more than 400 diagnostic troubleshooting codes. You can obtain a complete list of diagnostic codes from most Nissan dealerships.
Chiltons owner manual has complete eccm trouble codes
Go toa Nissan dealership to have the codes read.
On 1994 and older vehicles, you can manually pull the trouble codes. Check out a repair manual (Hayne's or Chilton's) at your local library - chapter 6 has all the details on how to do it; also what each code means and how to trouble shoot.
Need more info check engine light on?trouble codes?year ?
Undo the battery negative cable for approx 20 minutes. That should remove all codes and trouble codes. They will however return if its a trouble code not diagnostic, if that makes any sense.
If your vehicle is 1995 or later, you will need a scanner tool to pull the trouble codes. AutoZone and similar auto parts stores offer free scans. If your vehicle is 1994 or older, you can manually pull the trouble codes. Check out a repair manual (Hayne's or Chilton's) at your local library - chapter 6 has all the details on how to do it; also what each code means and how to trouble shoot.
You can't manually get the check engine light to give you the trouble codes on your vehicle. 1995 and later vehicles use the OBDII system and you must use a scanner tool to retrieve the codes. You can go to AutoZone or similar auto parts store that offers free scans to get the trouble codes retrieved. Or you can buy your own scan tool for about $70.
Go to your local public library and check out a repair manual (Chilton or Haynes) for your vehicle. Chapter six will give you detailed instructions and procedures for manually retrieving the trouble codes - also, what each trouble code means and how to troube-shoot.
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