After repair, you use a scan tool or you unhook battery.
With a scan tool, or unhooking the battery.
You can usually look up the codes on obd-codes.com if you don't have the manual that came with your code reader. P0108 Manifold Absolute Pressure/Barometric Pressure Circuit High Input
The diagnostic code 12 51 55 is actually not a code for the 1994 Jeep Grand Cherokee Laredo. The 12 means that it has started searching for codes. The 51 is oxygen sensor stuck lean. The 55 means it is finished searching for codes. Getting this means nothing is wrong.
A full listing of diagnostic codes can be obtained from most General Motors dealerships. The Chevy Lumina has more than 500 diagnostic codes.
I received these error codes for my 1998 Dodge Avenger, 6cyl. 2.5 What does these codes mean? Where would I start to fix these issues? ~THANK YOU ~ P0108 P1297 P0401
The average Nissan automobile has more than 400 diagnostic troubleshooting codes. You can obtain a complete list of diagnostic codes from most Nissan dealerships.
Codes on a 1995 Jeep are two digits long. So 5 means nothing.
Diagnostic Trouble Codes.
12 equals battery disconnected recently,43 equals engine misfire(get diagnostic done to find out which cylinder)and 55 means end of codes
12 - battery was disconnected 14 - map sensor volts low 27 - injector control circuit 55 - end of message (no more codes)
With a diagnostic scanning tool.