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Generic OBD-II code references — Page 54.

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9,249 code references for Generic OBD-II

Generic OBD-II
P23A1

O2 Sensor Exhaust Sample Error Bank 2 Sensor 2

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Generic OBD-II
P23A2

Exhaust Heat Exchanger Exhaust Bypass Valve B Control Circuit/Open

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Generic OBD-II
P23A3

Exhaust Heat Exchanger Exhaust Bypass Valve B Control Circuit Low

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Generic OBD-II
P23A4

Exhaust Heat Exchanger Exhaust Bypass Valve B Control Circuit High

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Generic OBD-II
P23A5

Exhaust Heat Exchanger Exhaust Bypass Valve B Control Performance

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Generic OBD-II
P23A6

Exhaust Heat Exchanger Exhaust Bypass Valve B Stuck Open

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Generic OBD-II
P23A7

Exhaust Heat Exchanger Exhaust Bypass Valve B Stuck Closed

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Generic OBD-II
P23A8

Exhaust Heat Exchanger Exhaust Bypass Valve B Position Sensor Stop Performance

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Generic OBD-II
P23A9

Communication Fault – Forced Engine Shutdown

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Generic OBD-II
P23AA

Turbocharger/Supercharger Bypass Valve A Stuck

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Generic OBD-II
P23AB

NOx Sensor Processor Performance Bank 1 Sensor 3

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Generic OBD-II
P23AC

NOx Sensor Circuit Bank 1 Sensor 3

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Generic OBD-II
P23AD

NOx Sensor Circuit Range/Performance Bank 1 Sensor 3

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Generic OBD-II
P23AE

NOx Sensor Circuit Low Bank 1 Sensor 3

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Generic OBD-II
P23AF

NOx Sensor Circuit High Bank 1 Sensor 3

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Generic OBD-II
P23B0

NOx Sensor Circuit Intermittent Bank 1 Sensor 3

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Generic OBD-II
P23B1

NOx Sensor Heater Control Circuit/Open Bank 1 Sensor 3

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Generic OBD-II
P23B2

NOx Sensor Heater Control Circuit Low Bank 1 Sensor 3

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Generic OBD-II
P23B3

NOx Sensor Heater Control Circuit High Bank 1 Sensor 3

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Generic OBD-II
P23B4

NOx Sensor Heater Sense Circuit Bank 1 Sensor 3

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Generic OBD-II
P23B5

NOx Sensor Heater Sense Circuit Range/Performance Bank 1 Sensor 3

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Generic OBD-II
P23B6

NOx Sensor Supply Voltage Circuit Bank 1 Sensor 3

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Generic OBD-II
P23B7

NOx Sensor Heater Control Circuit Range/Performance Bank 1 Sensor 3

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Generic OBD-II
P23B8

NOx Sensor Heater Sense Circuit Low Bank 1 Sensor 3

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Generic OBD-II
P23B9

NOx Sensor Heater Sense Circuit High Bank 1 Sensor 3

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Generic OBD-II
P23BA

NOx Sensor Heater Sense Circuit Intermittent Bank 1 Sensor 3

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Generic OBD-II
P23BB

NOx Sensor Heater Resistance Bank 1 Sensor 3

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Generic OBD-II
P23BC

NOx Sensor Calibration Memory Bank 1 Sensor 3

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Generic OBD-II
P23BD

NOx Sensor Performance - Signal Biased/Stuck High Bank 1 Sensor 3

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Generic OBD-II
P23BE

NOx Sensor Performance - Signal Biased/Stuck Low Bank 1 Sensor 3

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Generic OBD-II
P23BF

NOx Sensor Performance - Slow Response Low to High Bank 1 Sensor 3

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Generic OBD-II
P23C0

NOx Sensor Performance - Slow Response High to Low Bank 1 Sensor 3

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Generic OBD-II
P23C1

NOx Sensor Performance - Sensing Element Bank 1 Sensor 3

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Generic OBD-II
P23C2

NOx Sensor Delayed Response - High to Low Bank 1 Sensor 3

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Generic OBD-II
P23C3

Engine Coolant Bypass Valve C Position Sensor Circuit

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Generic OBD-II
P23C4

Engine Coolant Bypass Valve C Position Sensor Circuit Low

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Generic OBD-II
P23C5

Engine Coolant Bypass Valve C Position Sensor Circuit High

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Generic OBD-II
P23C6

Engine Coolant Bypass Valve C Control Circuit Driver Current/Temperature Too High

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Generic OBD-II
P23C7

Fuel Heater Control Module Power Control Circuit/Open

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Generic OBD-II
P23C8

Fuel Heater Control Module Power Control Circuit Low

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Generic OBD-II
P23C9

Fuel Heater Control Module Power Control Circuit High

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Generic OBD-II
P23CA

Fuel Rail Heater Control Circuit/Open

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Generic OBD-II
P23CB

Fuel Rail Heater Control Circuit Low

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Generic OBD-II
P23CC

Fuel Rail Heater Control Circuit High

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Generic OBD-II
P23CD

Fuel Heater Control Module Feedback Signal/Open

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Generic OBD-II
P23CE

Fuel Heater Control Module Feedback Signal Performance

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Generic OBD-II
P23CF

Fuel Heater Control Module Feedback Signal Circuit Low

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Generic OBD-II
P23D0

Fuel Heater Control Module Feedback Signal Circuit High

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Generic OBD-II
P23D1

Cylinder 1 Fuel Heater Control Circuit/Open

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Generic OBD-II
P23D2

Cylinder 1 Fuel Heater Control Circuit High

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Generic OBD-II
P23D3

Cylinder 1 Fuel Heater Control Circuit Low

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Generic OBD-II
P23D4

Cylinder 1 Fuel Heater Performance

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Generic OBD-II
P23D5

Cylinder 2 Fuel Heater Control Circuit/Open

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Generic OBD-II
P23D6

Cylinder 2 Fuel Heater Control Circuit High

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Generic OBD-II
P23D7

Cylinder 2 Fuel Heater Control Circuit Low

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Generic OBD-II
P23D8

Cylinder 2 Fuel Heater Performance

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Generic OBD-II
P23D9

Cylinder 3 Fuel Heater Control Circuit/Open

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Generic OBD-II
P23DA

Cylinder 3 Fuel Heater Control Circuit High

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Generic OBD-II
P23DB

Cylinder 3 Fuel Heater Control Circuit Low

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Generic OBD-II
P23DC

Cylinder 3 Fuel Heater Performance

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Generic OBD-II
P23DD

Cylinder 4 Fuel Heater Control Circuit/Open

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Generic OBD-II
P23DE

Cylinder 4 Fuel Heater Control Circuit High

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Generic OBD-II
P23DF

Cylinder 4 Fuel Heater Control Circuit Low

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Generic OBD-II
P23E0

Cylinder 4 Fuel Heater Performance

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Generic OBD-II
P23E1

EGR C Control Circuit/Open

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Generic OBD-II
P23E2

EGR C Control Circuit Performance

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Generic OBD-II
P23E3

EGR C Control Circuit Low

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Generic OBD-II
P23E4

EGR C Control Circuit High

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Generic OBD-II
P23E5

EGR C Control Stuck Open

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Generic OBD-II
P23E6

EGR C Control Stuck Closed

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Generic OBD-II
P23E7

EGR C Flow Insufficient Detected

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Generic OBD-II
P23E8

EGR C Flow Excessive Detected

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Generic OBD-II
P23E9

Camshaft A Position Signal Output Circuit/Open Bank 2

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Generic OBD-II
P23EA

Camshaft A Position Signal Output Circuit Low Bank 2

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Generic OBD-II
P23EB

Camshaft A Position Signal Output Circuit High Bank 2

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Generic OBD-II
P23EC

Camshaft B Position Signal Output Circuit/Open Bank 1

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Generic OBD-II
P23ED

Camshaft B Position Signal Output Circuit Low Bank 1

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Generic OBD-II
P23EE

Camshaft B Position Signal Output Circuit High Bank 1

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Generic OBD-II
P23EF

Camshaft B Position Signal Output Circuit/Open Bank 2

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Generic OBD-II
P23F0

Camshaft B Position Signal Output Circuit Low Bank 2

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Generic OBD-II
P23F1

Camshaft B Position Signal Output Circuit High Bank 2

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Generic OBD-II
P23F2

Cylinder 1 Injector B Air-Fuel Ratio Imbalance

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Generic OBD-II
P23F3

Cylinder 2 Injector B Air-Fuel Ratio Imbalance

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Generic OBD-II
P23F4

Cylinder 3 Injector B Air-Fuel Ratio Imbalance

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Generic OBD-II
P23F5

Cylinder 4 Injector B Air-Fuel Ratio Imbalance

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Generic OBD-II
P23F6

Cylinder 5 Injector B Air-Fuel Ratio Imbalance

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Generic OBD-II
P23F7

Cylinder 6 Injector B Air-Fuel Ratio Imbalance

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Generic OBD-II
P23F8

Cylinder 7 Injector B Air-Fuel Ratio Imbalance

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Generic OBD-II
P23F9

Cylinder 8 Injector B Air-Fuel Ratio Imbalance

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Generic OBD-II
P23FA

Cylinder 9 Injector B Air-Fuel Ratio Imbalance

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Generic OBD-II
P23FB

Cylinder 10 Injector B Air-Fuel Ratio Imbalance

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Generic OBD-II
P23FC

Cylinder 11 Injector B Air-Fuel Ratio Imbalance

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Generic OBD-II
P23FD

Cylinder 12 Injector B Air-Fuel Ratio Imbalance

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Generic OBD-II
P23FE

Bank 1 System B Air-Fuel Ratio Imbalance

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Generic OBD-II
P23FF

Bank 2 System B Air-Fuel Ratio Imbalance

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Generic OBD-II
P2400

EVAP System Leak Detection Pump Control Circuit/Open

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Generic OBD-II
P2401

EVAP System Leak Detection Pump Control Circuit Low

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Generic OBD-II
P2402

EVAP System Leak Detection Pump Control Circuit High

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Generic OBD-II
P2403

EVAP System Leak Detection Pump Sense Circuit/Open

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Generic OBD-II
P2404

EVAP System Leak Detection Pump Sense Circuit Range/Performance

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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.