Question about 2000 Toyota Corolla
Its was ok when we went to jersey city but when we came home i saw the engine light on so i used my OBD tester and it appear that the code is P0420 and then i erased the diagnostic trouble code but the problem is when i turn off the engine the dash board,head light,tail lights stays on,i perform the erase diagnostic trouble code but nothing happen the last thing i did is to disconnect the negative cicuit in the battery so it wont discharge the starter,can you please help me with this.
The P0420 that you are getting may be an inoperative air/fuel sensor (the actual code is "catalyst system efficiency below threshold". This code will not affect the head/tail lamps or dash lights.
You may have a bad headlamp switch.
Posted on Sep 19, 2008
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Jul 23, 2012 | 1993 Mercury Grand Marquis
Jan 06, 2011 | 1989 Toyota Camry
Jul 30, 2010 | 1999 Nissan Altima
May 03, 2010 | 1983 Oldsmobile Cutlass Supreme
Jan 31, 2010 | 1999 Chevrolet Venture
Mar 23, 2009 | Toyota Tacoma Cars & Trucks
Dec 26, 2008 | 2000 Nissan Frontier
Sep 01, 2008 | 1997 Nissan Sentra
401 people viewed this question
Usually answered in minutes!