OBD2 Codes Explained
OBD2 Codes Explained OBD-II codes consist of a number of parts. Here is a sample OBD2 code: P0171 Here is a breakdown of what each digit of the code means: First Character - System The first character identifies identifies the system related to the trouble code. * P = Powertrain * B = Body * C = Chassis * U = Undefined Second Digit - Code Type The second digit identifies whether the code is a generic code (same on all OBD-II equpped vehicles), or a manufacturer specific code. * 0 = Generic (this is the digit zero -- not the letter "O") * 1 = Enhanced (manufacturer specific) Third Digit - Sub-System The third digit denotes the type of sub-system that pertains to the code * 1 = Emission Management (Fuel or Air) * 2 = Injector Circuit (Fuel or Air) * 3 = Ignition or Misfire * 4 = Emission Control * 5 = Vehicle Speed & Idle Control * 6 = Computer & Output Circuit * 7 = Transmission * 8 = Transmission * 9 = SAE Reserved * 0 = SAE Reserved Fourth and Fifth Digits These digits, along with the others, are variable, and relate to a particular problem. For example,a P0171 code means P0171 - System Too Lean (Bank 1). To lookup your particular code, visit our OBD Trouble Codes section. |
thanks uncle bubba that will help me when i see a thread with a code in it i might be able to help someone with that there new fangled electronic engine by crappy just might:w2:
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Nice post there Uncle bubba that is some very useful info. :tu:
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half damn century old and still learnin here......thanks man
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me too whit but too old to remember:jump:
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