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THE CODE DIRECTORY

Diagnostic code references — Page 9.

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

11,786 code references

Generic OBD-II
P0086

Exhaust Valve Control Solenoid Circuit High Bank 2

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Generic OBD-II
P0087

Fuel Rail/System Pressure - Too Low Bank 1

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Generic OBD-II
P0088

Fuel Rail/System Pressure - Too High Bank 1

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Generic OBD-II
P0089

Fuel Pressure Regulator A Performance

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Generic OBD-II
P008A

Low Pressure Fuel System Pressure - Too Low

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Generic OBD-II
P008B

Low Pressure Fuel System Pressure - Too High

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Generic OBD-II
P008C

Fuel Cooler Pump Control Circuit/Open

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Generic OBD-II
P008D

Fuel Cooler Pump Control Circuit Low

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Generic OBD-II
P008E

Fuel Cooler Pump Control Circuit High

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Generic OBD-II
P008F

Engine Coolant Temperature/Fuel Temperature Correlation

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Generic OBD-II
P0090

Fuel Pressure Regulator A Control Circuit/Open

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Generic OBD-II
P0091

Fuel Pressure Regulator A Control Circuit Low

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Generic OBD-II
P0092

Fuel Pressure Regulator A Control Circuit High

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Generic OBD-II
P0093

Fuel System Leak Detected - Large Leak

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Generic OBD-II
P0094

Fuel System Leak Detected - Small Leak

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Generic OBD-II
P0095

Intake Air Temperature Sensor 2 Circuit Bank 1

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Generic OBD-II
P0096

Intake Air Temperature Sensor 2 Circuit Range/Performance Bank 1

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Generic OBD-II
P0097

Intake Air Temperature Sensor 2 Circuit Low Bank 1

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Generic OBD-II
P0098

Intake Air Temperature Sensor 2 Circuit High Bank 1

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Generic OBD-II
P0099

Intake Air Temperature Sensor 2 Circuit Intermittent/Erratic Bank 1

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Generic OBD-II
P009A

Intake Air Temperature/Ambient Air Temperature Correlation

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Generic OBD-II
P009B

Fuel Pressure Relief Control Circuit/Open

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Generic OBD-II
P009C

Fuel Pressure Relief Control Circuit Low

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Generic OBD-II
P009D

Fuel Pressure Relief Control Circuit High

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Generic OBD-II
P009E

Fuel Pressure Relief Control Performance/Stuck Off

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Generic OBD-II
P009F

Fuel Pressure Relief Control Stuck On

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Generic OBD-II
P00A0

Charge Air Cooler Temperature Sensor Circuit Bank 2

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Generic OBD-II
P00A1

Charge Air Cooler Temperature Sensor Circuit Range/Performance Bank 2

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Generic OBD-II
P00A2

Charge Air Cooler Temperature Sensor Circuit Low Bank 2

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Generic OBD-II
P00A3

Charge Air Cooler Temperature Sensor Circuit High Bank 2

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Generic OBD-II
P00A4

Charge Air Cooler Temperature Sensor Circuit Intermittent/Erratic Bank 2

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Generic OBD-II
P00A5

Intake Air Temperature Sensor 2 Circuit Bank 2

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Generic OBD-II
P00A6

Intake Air Temperature Sensor 2 Circuit Range/Performance Bank 2

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Generic OBD-II
P00A7

Intake Air Temperature Sensor 2 Circuit Low Bank 2

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Generic OBD-II
P00A8

Intake Air Temperature Sensor 2 Circuit High Bank 2

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Generic OBD-II
P00A9

Intake Air Temperature Sensor 2 Circuit Intermittent/Erratic Bank 2

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Generic OBD-II
P00AA

Intake Air Temperature Sensor 1 Circuit Bank 2

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Generic OBD-II
P00AB

Intake Air Temperature Sensor 1 Circuit Range/Performance Bank 2

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Generic OBD-II
P00AC

Intake Air Temperature Sensor 1 Circuit Low Bank 2

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Generic OBD-II
P00AD

Intake Air Temperature Sensor 1 Circuit High Bank 2

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Generic OBD-II
P00AE

Intake Air Temperature Sensor 1 Circuit Intermittent Bank 2

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Generic OBD-II
P00AF

Turbocharger/Supercharger Boost Control A Module Performance

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Generic OBD-II
P00B0

Turbocharger/Supercharger Boost Control B Module Performance

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Generic OBD-II
P00B1

Radiator Coolant Temperature Sensor Circuit

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Generic OBD-II
P00B2

Radiator Coolant Temperature Sensor Circuit Range/Performance

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Generic OBD-II
P00B3

Radiator Coolant Temperature Sensor Circuit Low

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Generic OBD-II
P00B4

Radiator Coolant Temperature Sensor Circuit High

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Generic OBD-II
P00B5

Radiator Coolant Temperature Sensor Circuit Intermittent/Erratic

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Generic OBD-II
P00B6

Radiator Coolant Temperature/Engine Coolant Temperature Correlation

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Generic OBD-II
P00B7

Engine Coolant Flow Low/Performance

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Generic OBD-II
P00B8

MAP - Mass or Volume Air Flow Correlation Bank 2

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Generic OBD-II
P00B9

Low Pressure Fuel System Pressure - Too Low. Low Ambient Temperature

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Generic OBD-II
P00BA

Low Fuel Pressure - Forced Limited Power

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Generic OBD-II
P00BB

Fuel Injector Insufficient Flow - Forced Limited Power

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Generic OBD-II
P00BC

Mass or Volume Air Flow A Circuit Range/Performance - Air Flow Too Low

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Generic OBD-II
P00BD

Mass or Volume Air Flow A Circuit Range/Performance - Air Flow Too High

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Generic OBD-II
P00BE

Mass or Volume Air Flow B Circuit Range/Performance - Air Flow Too Low

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Generic OBD-II
P00BF

Mass or Volume Air Flow B Circuit Range/Performance - Air Flow Too High

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Generic OBD-II
P00C0

Turbocharger/Supercharger Bypass Valve B Control Circuit

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Generic OBD-II
P00C1

Turbocharger/Supercharger Bypass Valve B Control Circuit Low

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Generic OBD-II
P00C2

Turbocharger/Supercharger Bypass Valve B Control Circuit High

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Generic OBD-II
P00C3

Turbocharger/Supercharger Bypass Valve B Control Circuit Range/Performance

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Generic OBD-II
P00C4

Turbocharger/Supercharger Bypass Valve B - Mechanical

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Generic OBD-II
P00C5

Turbocharger/Supercharger B Turbine Overspeed

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Generic OBD-II
P00C6

Fuel Rail Pressure Too Low - Engine Cranking Bank 1

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Generic OBD-II
P00C7

Intake Air Pressure Measurement System - Multiple Sensor Correlation Bank 1

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Generic OBD-II
P00C8

Fuel Pressure Regulator A Solenoid Supply Voltage Control Circuit/Open

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Generic OBD-II
P00C9

Fuel Pressure Regulator A Solenoid Supply Voltage Control Circuit Low

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Generic OBD-II
P00CA

Fuel Pressure Regulator A Solenoid Supply Voltage Control Circuit High

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Generic OBD-II
P00CB

Fuel Volume Regulator Solenoid Supply Voltage Control Circuit/Open

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Generic OBD-II
P00CC

Fuel Volume Regulator Solenoid Supply Voltage Control Circuit Low

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Generic OBD-II
P00CD

Fuel Volume Regulator Solenoid Supply Voltage Control Circuit High

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Generic OBD-II
P00CE

Intake Air Temperature Measurement System - Multiple Sensor Correlation Bank 1

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Generic OBD-II
P00CF

Barometric Pressure - Turbocharger/Supercharger Boost Sensor A Correlation

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Generic OBD-II
P00D0

Barometric Pressure - Turbocharger/Supercharger Boost Sensor B Correlation

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Generic OBD-II
P00D1

HO2S Heater Control Circuit Range/Performance Bank 1 Sensor 1

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Generic OBD-II
P00D2

HO2S Heater Control Circuit Range/Performance Bank 1 Sensor 2

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Generic OBD-II
P00D3

HO2S Heater Control Circuit Range/Performance Bank 2 Sensor 1

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Generic OBD-II
P00D4

HO2S Heater Control Circuit Range/Performance Bank 2 Sensor 2

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Generic OBD-II
P00D5

HO2S Sensor Correlation Bank 1 Sensor 1/Bank 1 Sensor 2

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Generic OBD-II
P00D6

HO2S Sensor Correlation Bank 2 Sensor 1/Bank 2 Sensor 2

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Generic OBD-II
P00D7

Turbocharger/Supercharger Bypass Valve A Temperature Too High

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Generic OBD-II
P00D8

Turbocharger/Supercharger Bypass Valve B Temperature Too High

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Generic OBD-II
P00D9

Ambient Air Temperature Sensor Circuit B

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Generic OBD-II
P00DA

Ambient Air Temperature Sensor Circuit B Range/Performance

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Generic OBD-II
P00DB

Ambient Air Temperature Sensor Circuit B Low

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Generic OBD-II
P00DC

Ambient Air Temperature Sensor Circuit B High

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Generic OBD-II
P00DD

Ambient Air Temperature Sensor Circuit B Intermittent/Erratic

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Generic OBD-II
P00DE

Charge Air Cooler Coolant Temperature Sensor A Circuit

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Generic OBD-II
P00DF

Charge Air Cooler Coolant Temperature Sensor A Circuit Range/Performance

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Generic OBD-II
P00E0

Charge Air Cooler Coolant Temperature Sensor A Circuit Low

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Generic OBD-II
P00E1

Charge Air Cooler Coolant Temperature Sensor A Circuit High

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Generic OBD-II
P00E2

Charge Air Cooler Coolant Temperature Sensor A Intermittent/Erratic

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Generic OBD-II
P00E3

Exhaust Heat Exchanger Exhaust Bypass Valve A Stuck Open

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Generic OBD-II
P00E4

Exhaust Heat Exchanger Exhaust Bypass Valve A Stuck Closed

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Generic OBD-II
P00E5

Intake Air Temperature/Fuel Temperature Correlation

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Generic OBD-II
P00E6

Intake Air Pressure Measurement System - Multiple Sensor Correlation Bank 2

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Generic OBD-II
P00E7

Intake Air Temperature Measurement System - Multiple Sensor Correlation Bank 2

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Generic OBD-II
P00E8

Intake Air Temperature Sensor 3 Circuit Bank 1

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Generic OBD-II
P00E9

Intake Air Temperature Sensor 3 Circuit Range/Performance Bank 1

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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.