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THE CODE DIRECTORY

Diagnostic code references — Page 14.

Browse canonical reference entries. Each definition keeps its own source and vehicle-applicability limits.

11,786 code references

Generic OBD-II
P027A

Fuel Pump Module B Control Circuit/Open

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Generic OBD-II
P027B

Fuel Pump Module B Control Circuit Range/Performance

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Generic OBD-II
P027C

Fuel Pump Module B Control Circuit Low

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Generic OBD-II
P027D

Fuel Pump Module B Control Circuit High

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Generic OBD-II
P027E

Cold Start Fuel Injection Quantity A Lower Than Expected

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Generic OBD-II
P027F

Cold Start Fuel Injection Quantity A Higher Than Expected

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Generic OBD-II
P0280

Cylinder 7 Injector A Circuit High

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Generic OBD-II
P0281

Cylinder 7 Contribution/Balance

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Generic OBD-II
P0282

Cylinder 8 Injector A Circuit Low

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Generic OBD-II
P0283

Cylinder 8 Injector A Circuit High

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Generic OBD-II
P0284

Cylinder 8 Contribution/Balance

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Generic OBD-II
P0285

Cylinder 9 Injector A Circuit Low

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Generic OBD-II
P0286

Cylinder 9 Injector A Circuit High

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Generic OBD-II
P0287

Cylinder 9 Contribution/Balance

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Generic OBD-II
P0288

Cylinder 10 Injector A Circuit Low

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Generic OBD-II
P0289

Cylinder 10 Injector A Circuit High

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Generic OBD-II
P028A

Charge Air Cooler Cooling Fan Control Circuit/Open

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Generic OBD-II
P028B

Charge Air Cooler Cooling Fan Performance/Stuck Off

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Generic OBD-II
P028C

Charge Air Cooler Cooling Fan Stuck On

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Generic OBD-II
P028D

Charge Air Cooler Cooling Fan Control Circuit Low

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Generic OBD-II
P028E

Charge Air Cooler Cooling Fan Control Circuit High

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Generic OBD-II
P028F

Charge Air Cooler Cooling Fan Control Circuit Driver Performance

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Generic OBD-II
P0290

Cylinder 10 Contribution/Balance

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Generic OBD-II
P0291

Cylinder 11 Injector A Circuit Low

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Generic OBD-II
P0292

Cylinder 11 Injector A Circuit High

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Generic OBD-II
P0293

Cylinder 11 Contribution/Balance

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Generic OBD-II
P0294

Cylinder 12 Injector A Circuit Low

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Generic OBD-II
P0295

Cylinder 12 Injector A Circuit High

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Generic OBD-II
P0296

Cylinder 12 Contribution/Balance

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Generic OBD-II
P0297

Vehicle Overspeed Condition

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Generic OBD-II
P0298

Engine Oil Over Temperature

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Generic OBD-II
P0299

Turbocharger/Supercharger A Underboost Condition

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Generic OBD-II
P029A

Cylinder 1 - Fuel Trim at Max Limit

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Generic OBD-II
P029B

Cylinder 1 - Fuel Trim at Min Limit

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Generic OBD-II
P029C

Cylinder 1 - Injector Restricted

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Generic OBD-II
P029D

Cylinder 1 - Injector Leaking

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Generic OBD-II
P029E

Cylinder 2 - Fuel Trim at Max Limit

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Generic OBD-II
P029F

Cylinder 2 - Fuel Trim at Min Limit

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Generic OBD-II
P02A0

Cylinder 2 - Injector Restricted

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Generic OBD-II
P02A1

Cylinder 2 - Injector Leaking

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Generic OBD-II
P02A2

Cylinder 3 - Fuel Trim at Max Limit

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Generic OBD-II
P02A3

Cylinder 3 - Fuel Trim at Min Limit

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Generic OBD-II
P02A4

Cylinder 3 - Injector Restricted

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Generic OBD-II
P02A5

Cylinder 3 - Injector Leaking

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Generic OBD-II
P02A6

Cylinder 4 - Fuel Trim at Max Limit

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Generic OBD-II
P02A7

Cylinder 4 - Fuel Trim at Min Limit

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Generic OBD-II
P02A8

Cylinder 4 - Injector Restricted

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Generic OBD-II
P02A9

Cylinder 4 - Injector Leaking

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Generic OBD-II
P02AA

Cylinder 5 - Fuel Trim at Max Limit

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Generic OBD-II
P02AB

Cylinder 5 - Fuel Trim at Min Limit

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Generic OBD-II
P02AC

Cylinder 5 - Injector Restricted

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Generic OBD-II
P02AD

Cylinder 5 - Injector Leaking

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Generic OBD-II
P02AE

Cylinder 6 - Fuel Trim at Max Limit

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Generic OBD-II
P02AF

Cylinder 6 - Fuel Trim at Min Limit

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Generic OBD-II
P02B0

Cylinder 6 - Injector Restricted

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Generic OBD-II
P02B1

Cylinder 6 - Injector Leaking

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Generic OBD-II
P02B2

Cylinder 7 - Fuel Trim at Max Limit

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Generic OBD-II
P02B3

Cylinder 7 - Fuel Trim at Min Limit

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Generic OBD-II
P02B4

Cylinder 7 - Injector Restricted

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Generic OBD-II
P02B5

Cylinder 7 - Injector Leaking

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Generic OBD-II
P02B6

Cylinder 8 - Fuel Trim at Max Limit

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Generic OBD-II
P02B7

Cylinder 8 - Fuel Trim at Min Limit

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Generic OBD-II
P02B8

Cylinder 8 - Injector Restricted

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Generic OBD-II
P02B9

Cylinder 8 - Injector Leaking

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Generic OBD-II
P02BA

Cylinder 9 - Fuel Trim at Max Limit

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Generic OBD-II
P02BB

Cylinder 9 - Fuel Trim at Min Limit

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Generic OBD-II
P02BC

Cylinder 9 - Injector Restricted

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Generic OBD-II
P02BD

Cylinder 9 - Injector Leaking

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Generic OBD-II
P02BE

Cylinder 10 - Fuel Trim at Max Limit

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Generic OBD-II
P02BF

Cylinder 10 - Fuel Trim at Min Limit

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Generic OBD-II
P02C0

Cylinder 10 - Injector Restricted

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Generic OBD-II
P02C1

Cylinder 10 - Injector Leaking

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Generic OBD-II
P02C2

Cylinder 11 - Fuel Trim at Max Limit

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Generic OBD-II
P02C3

Cylinder 11 - Fuel Trim at Min Limit

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Generic OBD-II
P02C4

Cylinder 11 - Injector Restricted

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Generic OBD-II
P02C5

Cylinder 11 - Injector Leaking

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Generic OBD-II
P02C6

Cylinder 12 - Fuel Trim at Max Limit

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Generic OBD-II
P02C7

Cylinder 12 - Fuel Trim at Min Limit

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Generic OBD-II
P02C8

Cylinder 12 - Injector Restricted

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Generic OBD-II
P02C9

Cylinder 12 - Injector Leaking

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Generic OBD-II
P02CA

Turbocharger/Supercharger B Overboost Condition

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Generic OBD-II
P02CB

Turbocharger/Supercharger B Underboost Condition

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Generic OBD-II
P02CC

Cylinder 1 Fuel Injector A Offset Learning At Min Limit

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Generic OBD-II
P02CD

Cylinder 1 Fuel Injector A Offset Learning At Max Limit

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Generic OBD-II
P02CE

Cylinder 2 Fuel Injector A Offset Learning At Min Limit

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Generic OBD-II
P02CF

Cylinder 2 Fuel Injector A Offset Learning At Max Limit

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Generic OBD-II
P02D0

Cylinder 3 Fuel Injector A Offset Learning At Min Limit

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Generic OBD-II
P02D1

Cylinder 3 Fuel Injector A Offset Learning At Max Limit

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Generic OBD-II
P02D2

Cylinder 4 Fuel Injector A Offset Learning At Min Limit

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Generic OBD-II
P02D3

Cylinder 4 Fuel Injector A Offset Learning At Max Limit

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Generic OBD-II
P02D4

Cylinder 5 Fuel Injector A Offset Learning At Min Limit

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Generic OBD-II
P02D5

Cylinder 5 Fuel Injector A Offset Learning At Max Limit

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Generic OBD-II
P02D6

Cylinder 6 Fuel Injector A Offset Learning At Min Limit

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Generic OBD-II
P02D7

Cylinder 6 Fuel Injector A Offset Learning At Max Limit

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Generic OBD-II
P02D8

Cylinder 7 Fuel Injector A Offset Learning At Min Limit

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Generic OBD-II
P02D9

Cylinder 7 Fuel Injector A Offset Learning At Max Limit

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Generic OBD-II
P02DA

Cylinder 8 Fuel Injector A Offset Learning At Min Limit

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Generic OBD-II
P02DB

Cylinder 8 Fuel Injector A Offset Learning At Max Limit

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Generic OBD-II
P02DC

Cylinder 9 Fuel Injector A Offset Learning At Min Limit

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Generic OBD-II
P02DD

Cylinder 9 Fuel Injector A Offset Learning At Max Limit

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These are code references, not a list of confirmed faults on every vehicle. Read the source and applicability notes, then match the exact vehicle, year, engine and scan report.