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Powertrain code references — Page 11.

Engine, transmission and powertrain diagnostic references. Exact vehicle and module context still matters.

9,891 code references in powertrain

Generic OBD-II
P03EC

A Camshaft Profile Actuator C Control Circuit/Open Bank 1

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Generic OBD-II
P03ED

A Camshaft Profile Actuator C Control Circuit Low Bank 1

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Generic OBD-II
P03EE

A Camshaft Profile Actuator C Control Circuit High Bank 1

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Generic OBD-II
P03EF

A Camshaft Profile Actuator C Control Performance/Stuck Off Bank 1

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Generic OBD-II
P03F0

A Camshaft Profile Actuator C Control Stuck On Bank 1

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Generic OBD-II
P03F1

B Camshaft Profile Actuator C Control Circuit/Open Bank 1

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Generic OBD-II
P03F2

B Camshaft Profile Actuator C Control Circuit Low Bank 1

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Generic OBD-II
P03F3

B Camshaft Profile Actuator C Control Circuit High Bank 1

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Generic OBD-II
P03F4

B Camshaft Profile Actuator C Control Performance/Stuck Off Bank 1

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Generic OBD-II
P03F5

B Camshaft Profile Actuator C Control Stuck On Bank 1

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Generic OBD-II
P03F6

B Camshaft Position Actuator Position Sensor C Circuit Bank 1

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Generic OBD-II
P03F7

B Camshaft Position Actuator Position Sensor C Range/Performance Bank 1

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Generic OBD-II
P03F8

B Camshaft Position Actuator Position Sensor C Circuit Low Bank 1

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Generic OBD-II
P03F9

B Camshaft Position Actuator Position Sensor C Circuit High Bank 1

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Generic OBD-II
P03FA

Ignition K Control Signal Circuit/Open

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Generic OBD-II
P03FB

Ignition K Control Signal Circuit Low

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Generic OBD-II
P03FC

Ignition K Control Signal Circuit High

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Generic OBD-II
P03FD

Ignition L Control Signal Circuit/Open

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Generic OBD-II
P03FE

Ignition L Control Signal Circuit Low

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Generic OBD-II
P03FF

Ignition L Control Signal Circuit High

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Generic OBD-II
P0400

EGR A Flow

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Generic OBD-II
P0401

EGR A Flow Insufficient Detected

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Generic OBD-II
P0402

EGR A Flow Excessive Detected

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Generic OBD-II
P0403

EGR A Control Circuit/Open

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Generic OBD-II
P0404

EGR A Control Circuit Range/Performance

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Generic OBD-II
P0405

EGR Sensor A Circuit Low

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Generic OBD-II
P0406

EGR Sensor A Circuit High

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Generic OBD-II
P0407

EGR Sensor B Circuit Low

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Generic OBD-II
P0408

EGR Sensor B Circuit High

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Generic OBD-II
P0409

EGR Sensor A Circuit

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Generic OBD-II
P040A

EGR Temperature Sensor A Circuit

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Generic OBD-II
P040B

EGR Temperature Sensor A Circuit Range/Performance

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Generic OBD-II
P040C

EGR Temperature Sensor A Circuit Low

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Generic OBD-II
P040D

EGR Temperature Sensor A Circuit High

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Generic OBD-II
P040E

EGR Temperature Sensor A Circuit Intermittent/Erratic

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Generic OBD-II
P040F

EGR Temperature Sensor A/B Correlation

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Generic OBD-II
P0410

AIR System A

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Generic OBD-II
P0411

AIR System A Incorrect Flow Detected

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Generic OBD-II
P0412

AIR System Switching Valve A Circuit

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Generic OBD-II
P0413

AIR System Switching Valve A Circuit Open

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Generic OBD-II
P0414

AIR System Switching Valve A Circuit Shorted

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Generic OBD-II
P0415

AIR System Switching Valve B Circuit

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Generic OBD-II
P0416

AIR System Switching Valve B Circuit Open

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Generic OBD-II
P0417

AIR System Switching Valve B Circuit Shorted

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Generic OBD-II
P0418

AIR System Control A Circuit

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Generic OBD-II
P0419

AIR System Control B Circuit

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Generic OBD-II
P041A

EGR Temperature Sensor B Circuit

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Generic OBD-II
P041B

EGR Temperature Sensor B Circuit Range/Performance

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Generic OBD-II
P041C

EGR Temperature Sensor B Circuit Low

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Generic OBD-II
P041D

EGR Temperature Sensor B Circuit High

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Generic OBD-II
P041E

EGR Temperature Sensor B Circuit Intermittent/Erratic

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Generic OBD-II
P041F

AIR System Switching Valve A Circuit Low

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Generic OBD-II
P0420

Catalyst System Efficiency Below Threshold Bank 1

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Generic OBD-II
P0421

Catalyst 1 Efficiency Below Threshold Bank 1

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Generic OBD-II
P0422

Catalyst 2 Efficiency Below Threshold Bank 1

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Generic OBD-II
P0423

Heated Catalyst Efficiency Below Threshold Bank 1

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Generic OBD-II
P0424

Heated Catalyst Temperature Below Threshold Bank 1

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Generic OBD-II
P0425

Catalyst Temperature Sensor Circuit Bank 1 Sensor 1

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Generic OBD-II
P0426

Catalyst Temperature Sensor Circuit Range/Performance Bank 1 Sensor 1

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Generic OBD-II
P0427

Catalyst Temperature Sensor Circuit Low Bank 1 Sensor 1

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Generic OBD-II
P0428

Catalyst Temperature Sensor Circuit High Bank 1 Sensor 1

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Generic OBD-II
P0429

Catalyst Heater Control Circuit/Open Bank 1

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Generic OBD-II
P042A

Catalyst Temperature Sensor Circuit Bank 1 Sensor 2

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Generic OBD-II
P042B

Catalyst Temperature Sensor Circuit Range/Performance Bank 1 Sensor 2

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Generic OBD-II
P042C

Catalyst Temperature Sensor Circuit Low Bank 1 Sensor 2

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Generic OBD-II
P042D

Catalyst Temperature Sensor Circuit High Bank 1 Sensor 2

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Generic OBD-II
P042E

EGR A Control Stuck Open

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Generic OBD-II
P042F

EGR A Control Stuck Closed

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Generic OBD-II
P0430

Catalyst System Efficiency Below Threshold Bank 2

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Generic OBD-II
P0431

Catalyst 1 Efficiency Below Threshold Bank 2

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Generic OBD-II
P0432

Catalyst 2 Efficiency Below Threshold Bank 2

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Generic OBD-II
P0433

Heated Catalyst Efficiency Below Threshold Bank 2

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Generic OBD-II
P0434

Heated Catalyst Temperature Below Threshold Bank 2

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Generic OBD-II
P0435

Catalyst Temperature Sensor Circuit Bank 2 Sensor 1

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Generic OBD-II
P0436

Catalyst Temperature Sensor Circuit Range/Performance Bank 2 Sensor 1

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Generic OBD-II
P0437

Catalyst Temperature Sensor Circuit Low Bank 2 Sensor 1

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Generic OBD-II
P0438

Catalyst Temperature Sensor Circuit High Bank 2 Sensor 1

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Generic OBD-II
P0439

Catalyst Heater Control Circuit/Open Bank 2

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Generic OBD-II
P043A

Catalyst Temperature Sensor Circuit Bank 2 Sensor 2

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Generic OBD-II
P043B

Catalyst Temperature Sensor Circuit Range/Performance Bank 2 Sensor 2

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Generic OBD-II
P043C

Catalyst Temperature Sensor Circuit Low Bank 2 Sensor 2

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Generic OBD-II
P043D

Catalyst Temperature Sensor Circuit High Bank 2 Sensor 2

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Generic OBD-II
P043E

EVAP System Leak Detection Reference Orifice Low Flow

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Generic OBD-II
P043F

EVAP System Leak Detection Reference Orifice High Flow

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Generic OBD-II
P0440

EVAP System

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Generic OBD-II
P0441

EVAP System Incorrect Purge Flow

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Generic OBD-II
P0442

EVAP System Leak Detected (small leak)

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Generic OBD-II
P0443

EVAP System Purge Control Valve A Circuit

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Generic OBD-II
P0444

EVAP System Purge Control Valve A Circuit Open

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Generic OBD-II
P0445

EVAP System Purge Control Valve A Circuit Shorted

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Generic OBD-II
P0446

EVAP System Vent Control Circuit

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Generic OBD-II
P0447

EVAP System Vent Control Circuit Open

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Generic OBD-II
P0448

EVAP System Vent Control Circuit Shorted

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Generic OBD-II
P0449

EVAP System Vent Valve Control Circuit/Open

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Generic OBD-II
P044A

EGR Sensor C Circuit

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Generic OBD-II
P044B

EGR Sensor C Circuit Range/Performance

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Generic OBD-II
P044C

EGR Sensor C Circuit Low

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Generic OBD-II
P044D

EGR Sensor C Circuit High

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Generic OBD-II
P044E

EGR Sensor C Circuit Intermittent/Erratic

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Generic OBD-II
P044F

AIR System Switching Valve A Circuit High

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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.