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Generic OBD-II code references — Page 49.

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9,249 code references for Generic OBD-II

Generic OBD-II
P21AD

Reductant Level Sensor C Circuit

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Generic OBD-II
P21AE

Reductant Level Sensor C Circuit Range/Performance

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Generic OBD-II
P21AF

Reductant Level Sensor C Circuit Low

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Generic OBD-II
P21B0

Reductant Level Sensor C Circuit High

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Generic OBD-II
P21B1

Reductant Level Sensor C Circuit Intermittent/Erratic

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Generic OBD-II
P21B2

Excessive Time To Enter Closed Loop NOx Adsorber Control

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Generic OBD-II
P21B3

Closed Loop NOx Adsorber Control At Limit - Too High

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Generic OBD-II
P21B4

NOx Adsorber - Over Temperature Bank 1

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Generic OBD-II
P21B5

NOx Adsorber - Over Temperature Bank 2

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Generic OBD-II
P21B6

Cold Start Cylinder 1 Injection Timing

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Generic OBD-II
P21B7

Cold Start Cylinder 2 Injection Timing

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Generic OBD-II
P21B8

Cold Start Cylinder 3 Injection Timing

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Generic OBD-II
P21B9

Cold Start Cylinder 4 Injection Timing

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Generic OBD-II
P21BA

Cold Start Cylinder 5 Injection Timing

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Generic OBD-II
P21BB

Cold Start Cylinder 6 Injection Timing

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Generic OBD-II
P21BC

Cold Start Cylinder 7 Injection Timing

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Generic OBD-II
P21BD

Cold Start Cylinder 8 Injection Timing

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Generic OBD-II
P21BE

Cold Start Cylinder 9 Injection Timing

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Generic OBD-II
P21BF

Cold Start Cylinder 10 Injection Timing

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Generic OBD-II
P21C0

Cold Start Cylinder 11 Injection Timing

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Generic OBD-II
P21C1

Cold Start Cylinder 12 Injection Timing

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Generic OBD-II
P21C2

Reductant Heater Relay Control Circuit/Open

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Generic OBD-II
P21C3

Reductant Heater Relay Control Circuit Low

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Generic OBD-II
P21C4

Reductant Heater Relay Control Circuit High

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Generic OBD-II
P21C5

Reductant Level Sensor A Stuck

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Generic OBD-II
P21C6

Reductant Level Sensor B Stuck

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Generic OBD-II
P21C7

Reductant Control Module Power Relay/Relays Control Circuit/Open

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Generic OBD-II
P21C8

Reductant Control Module Power Relay/Relays Control Circuit Low

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Generic OBD-II
P21C9

Reductant Control Module Power Relay/Relays Control Circuit High

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Generic OBD-II
P21CA

Reductant Control Module Supply Voltage Circuit

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Generic OBD-II
P21CB

Reductant Control Module Supply Voltage Low

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Generic OBD-II
P21CC

Reductant Control Module Supply Voltage High

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Generic OBD-II
P21CD

Reductant Quality Module Supply Voltage Low

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Generic OBD-II
P21CE

Reductant Quality Module Performance

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Generic OBD-II
P21CF

Cylinder 1 Injector B Circuit/Open

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Generic OBD-II
P21D0

Cylinder 2 Injector B Circuit/Open

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Generic OBD-II
P21D1

Cylinder 3 Injector B Circuit/Open

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Generic OBD-II
P21D2

Cylinder 4 Injector B Circuit/Open

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Generic OBD-II
P21D3

Cylinder 5 Injector B Circuit/Open

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Generic OBD-II
P21D4

Cylinder 6 Injector B Circuit/Open

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Generic OBD-II
P21D5

Cylinder 7 Injector B Circuit/Open

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Generic OBD-II
P21D6

Cylinder 8 Injector B Circuit/Open

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Generic OBD-II
P21D7

Cylinder 9 Injector B Circuit/Open

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Generic OBD-II
P21D8

Cylinder 10 Injector B Circuit/Open

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Generic OBD-II
P21D9

Cylinder 11 Injector B Circuit/Open

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Generic OBD-II
P21DA

Cylinder 12 Injector B Circuit/Open

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Generic OBD-II
P21DB

Cylinder 1 Injector B Circuit Low

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Generic OBD-II
P21DC

Cylinder 1 Injector B Circuit High

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Generic OBD-II
P21DD

Reductant Heater A Current Too Low

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Generic OBD-II
P21DE

Cylinder 2 Injector B Circuit Low

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Generic OBD-II
P21DF

Cylinder 2 Injector B Circuit High

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Generic OBD-II
P21E0

Cylinder 3 Injector B Circuit Low

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Generic OBD-II
P21E1

Cylinder 3 Injector B Circuit High

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Generic OBD-II
P21E2

Cylinder 4 Injector B Circuit Low

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Generic OBD-II
P21E3

Cylinder 4 Injector B Circuit High

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Generic OBD-II
P21E4

Cylinder 5 Injector B Circuit Low

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Generic OBD-II
P21E5

Cylinder 5 Injector B Circuit High

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Generic OBD-II
P21E6

Cylinder 6 Injector B Circuit Low

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Generic OBD-II
P21E7

Cylinder 6 Injector B Circuit High

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Generic OBD-II
P21E8

Cylinder 7 Injector B Circuit Low

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Generic OBD-II
P21E9

Cylinder 7 Injector B Circuit High

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Generic OBD-II
P21EA

Cylinder 8 Injector B Circuit Low

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Generic OBD-II
P21EB

Cylinder 8 Injector B Circuit High

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Generic OBD-II
P21EC

Cylinder 9 Injector B Circuit Low

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Generic OBD-II
P21ED

Cylinder 9 Injector B Circuit High

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Generic OBD-II
P21EE

Cylinder 10 Injector B Circuit Low

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Generic OBD-II
P21EF

Cylinder 10 Injector B Circuit High

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Generic OBD-II
P21F0

Cylinder 11 Injector B Circuit Low

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Generic OBD-II
P21F1

Cylinder 11 Injector B Circuit High

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Generic OBD-II
P21F2

Cylinder 12 Injector B Circuit Low

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Generic OBD-II
P21F3

Cylinder 12 Injector B Circuit High

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Generic OBD-II
P21F4

Fuel Control System B Too Lean Off Idle Bank 1

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Generic OBD-II
P21F5

Fuel Control System B Too Rich Off Idle Bank 1

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Generic OBD-II
P21F6

Fuel Control System B Too Lean Off Idle Bank 2

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Generic OBD-II
P21F7

Fuel Control System B Too Rich Off Idle Bank 2

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Generic OBD-II
P21F8

Fuel Control System B Too Lean at Idle Bank 1

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Generic OBD-II
P21F9

Fuel Control System B Too Rich at Idle Bank 1

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Generic OBD-II
P21FA

Fuel Control System B Too Lean at Idle Bank 2

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Generic OBD-II
P21FB

Fuel Control System B Too Rich at Idle Bank 2

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Generic OBD-II
P21FC

Fuel Control System B Too Lean at Higher Load Bank 1

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Generic OBD-II
P21FD

Fuel Control System B Too Rich at Higher Load Bank 1

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Generic OBD-II
P21FE

Fuel Control System B Too Lean at Higher Load Bank 2

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Generic OBD-II
P21FF

Fuel Control System B Too Rich at Higher Load Bank 2

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Generic OBD-II
P2200

NOx Sensor Circuit Bank 1 Sensor 1

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Generic OBD-II
P2201

NOx Sensor Circuit Range/Performance Bank 1 Sensor 1

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Generic OBD-II
P2202

NOx Sensor Circuit Low Bank 1 Sensor 1

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Generic OBD-II
P2203

NOx Sensor Circuit High Bank 1 Sensor 1

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Generic OBD-II
P2204

NOx Sensor Circuit Intermittent Bank 1 Sensor 1

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Generic OBD-II
P2205

NOx Sensor Heater Control Circuit/Open Bank 1 Sensor 1

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Generic OBD-II
P2206

NOx Sensor Heater Control Circuit Low Bank 1 Sensor 1

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Generic OBD-II
P2207

NOx Sensor Heater Control Circuit High Bank 1 Sensor 1

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Generic OBD-II
P2208

NOx Sensor Heater Sense Circuit Bank 1 Sensor 1

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Generic OBD-II
P2209

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

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Generic OBD-II
P220A

NOx Sensor Supply Voltage Circuit Bank 1 Sensor 1

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Generic OBD-II
P220B

NOx Sensor Supply Voltage Circuit Bank 1 Sensor 2

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Generic OBD-II
P220C

NOx Sensor Supply Voltage Circuit Bank 2 Sensor 1

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Generic OBD-II
P220D

NOx Sensor Supply Voltage Circuit Bank 2 Sensor 2

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Generic OBD-II
P220E

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

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Generic OBD-II
P220F

NOx Sensor Heater Control Circuit Range/Performance Bank 1 Sensor 2

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Generic OBD-II
P2210

NOx Sensor Heater Sense Circuit Low Bank 1 Sensor 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.