How to basicially read OBDll Standardized Diagnostic Trouble codes
Got this from a class I was in recently, thought it was interesting.
How to basically read OBDll Standardized Diagnostic Trouble codes. The codes start with a letter: The trouble code area: P- Powertrain B- Body C- Chassis U- Network Fault Who created this code: 0- SAE defined code 1- Manufacture defined code 2- Manufacture (they ran out of codes for 1 so they expanded to "2") System: 0- Total system 1- Air-fuel control 2- Air-fuel control 3- Ignition system or misfire 4- Auxiliary Emission Controls 5- Idle or speed controls 6- Computer system (PCM or I/O) 7- Transmission 8- Non-computer controlled Powertrain The last two digits indicate the specific problem area So the code P1711 would tell us: P- Powertrain 1- It's a manufacture's code 7- Transmission 11- Transmission oil temperature circuit out of range and the code P0300 would tell us: P- Powertrain O- It's a SAE mandated code 3- Ignition system or misfire 00- random misfire detected |
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