You can purchase a Toyota repair manual or ask us!
Repair the defect, and it'll shut the CEL off on its own.
Most diagnostic scanners with Obd 2 will display on screen the problem, older Obd 1 codes can be found in the cars repair manual or in the guide that usually comes with the scanner.
No, it will not.
You need a OBD 2 scanner/reader to erase the codes
Yes you need all OBD codes clear to pass testing
There is no OBD II port on your '93 Villager. 1995 and earlier model were equipped with the EEC or OBD I. All other models starting 1996 had OBD II. Sorry !! Now, you can access the codes on the OBD I system but, you will need to have a repair manual for detailed instructions. Get one at your local parts store.
An OBD II Code Reader, which reads vehicle engine codes, can be purchased in most larger automotive repair shops. Parts Source and Canadian Tire both carry them.
OBD stands for "On Board Diagnostics". OBD-II gives the vehicle owner or repair technician access to the status of the various vehicle subsystems. The OBD-II standard provides an extensible list of Diagnostic Trouble Codes. Starting with vehicles manufactured in 1996, the OBD-II specification was made mandatory for all cars manufactured in the United States to be sold in the United States.
You need an OBD scanner or take it to your local Auto Parts store. Stores like Advance auto parts can usually read codes for you. The generic codes they read out can be converted to Volvo's OBD codes. The generic codes usually start with the letter P.
Trouble code P2270 means: O2 sensor signal stuck lean bank 1 sensor 2
Once erased, the codes are gone.