How to get Toyota codes OBD1

OBD1 emissions systems were used up through the 1995 models. Starting with 1996 models, they all use a somewhat standardized On-board diagnostics, version 2, (OBD2) emissions system that includes well over 2,000 potential three-digit diagnostic fault codes. Those can be read in the odometer display on Chrysler products. I'm not aware of any other brands that can be done on without a scanner, or at least a relatively inexpensive code reader. A better alternative is to have the codes read at an auto parts store. The people at most of them will read the codes for you for free, but there's two things to be aware of. First, be sure to write down the exact fault code number. While the list of definitions is pretty standard, there are some variations between manufacturers, and some of those 2,000 codes are specific to a few brands.

The second thing that confuses a lot of people is those fault codes never ever say to replace a part or that one is bad. They only indicate the circuit or system that needs further diagnosis, or the unacceptable operating condition. When a sensor or other part is referenced in a fault code, that part is actually the cause of that code about half of the time. First we have to rule out wiring and connector terminal problems, and mechanical problems associated with that part before we spend your money on the part.

Once you know the code number(s), you may have seen this page already:

https://www.2carpros.com/trouble_codes/obd2

It lists the standardized definitions, or we can interpret them for you. If your code isn't on this list, it is manufacturer-specific, then we have to go by what is displayed on the scanner, or we have to look it up for your model.