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THE CODE DIRECTORY

Diagnostic code references — Page 78.

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

11,786 code references

Generic OBD-II
P2318

Ignition Coil G Primary Control Circuit Low

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Generic OBD-II
P2319

Ignition Coil G Primary Control Circuit High

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Generic OBD-II
P231A

Cylinder 7 Air-Fuel Ratio Imbalance - Adjustment At Limit During Balance

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Generic OBD-II
P231B

Cylinder 8 Air-Fuel Ratio Imbalance - Adjustment At Limit During Balance

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Generic OBD-II
P231C

Cylinder 9 Air-Fuel Ratio Imbalance - Adjustment At Limit During Balance

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Generic OBD-II
P231D

Cylinder 10 Air-Fuel Ratio Imbalance - Adjustment At Limit During Balance

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Generic OBD-II
P231E

Cylinder 11 Air-Fuel Ratio Imbalance - Adjustment At Limit During Balance

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Generic OBD-II
P231F

Cylinder 12 Air-Fuel Ratio Imbalance - Adjustment At Limit During Balance

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Generic OBD-II
P2320

Ignition Coil G Secondary Circuit

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Generic OBD-II
P2321

Ignition Coil H Primary Control Circuit Low

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Generic OBD-II
P2322

Ignition Coil H Primary Control Circuit High

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Generic OBD-II
P2323

Ignition Coil H Secondary Circuit

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Generic OBD-II
P2324

Ignition Coil I Primary Control Circuit Low

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Generic OBD-II
P2325

Ignition Coil I Primary Control Circuit High

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Generic OBD-II
P2326

Ignition Coil I Secondary Circuit

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Generic OBD-II
P2327

Ignition Coil J Primary Control Circuit Low

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Generic OBD-II
P2328

Ignition Coil J Primary Control Circuit High

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Generic OBD-II
P2329

Ignition Coil J Secondary Circuit

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Generic OBD-II
P232A

TCM Request - Forced Engine Shutdown

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Generic OBD-II
P232B

Cylinder 11 Fuel Injector A Offset Learning At Min Limit

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Generic OBD-II
P232C

Cylinder 11 Fuel Injector A Offset Learning At Max Limit

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Generic OBD-II
P232D

Cylinder 12 Fuel Injector A Offset Learning At Min Limit

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Generic OBD-II
P232E

Cylinder 12 Fuel Injector A Offset Learning At Max Limit

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Generic OBD-II
P232F

O2 Sensor Out of Range During Deceleration Bank 1 Sensor 2

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Generic OBD-II
P2330

Ignition Coil K Primary Control Circuit Low

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Generic OBD-II
P2331

Ignition Coil K Primary Control Circuit High

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Generic OBD-II
P2332

Ignition Coil K Secondary Circuit

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Generic OBD-II
P2333

Ignition Coil L Primary Control Circuit Low

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Generic OBD-II
P2334

Ignition Coil L Primary Control Circuit High

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Generic OBD-II
P2335

Ignition Coil L Secondary Circuit

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Generic OBD-II
P2336

Cylinder 1 Above Knock/Combustion Vibration Sensor Threshold

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Generic OBD-II
P2337

Cylinder 2 Above Knock/Combustion Vibration Sensor Threshold

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Generic OBD-II
P2338

Cylinder 3 Above Knock/Combustion Vibration Sensor Threshold

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Generic OBD-II
P2339

Cylinder 4 Above Knock/Combustion Vibration Sensor Threshold

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Generic OBD-II
P233A

Fuel Pressure Regulator C Control Circuit/Open

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Generic OBD-II
P233B

Fuel Pressure Regulator C Control Circuit Low

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Generic OBD-II
P233C

Fuel Pressure Regulator C Control Circuit High

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Generic OBD-II
P233D

Fuel Pressure Regulator B Solenoid Supply Voltage Control Circuit/Open

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Generic OBD-II
P233E

Fuel Pressure Regulator B Solenoid Supply Voltage Control Circuit Low

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Generic OBD-II
P233F

Fuel Pressure Regulator B Solenoid Supply Voltage Control Circuit High

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Generic OBD-II
P2340

Cylinder 5 Above Knock/Combustion Vibration Sensor Threshold

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Generic OBD-II
P2341

Cylinder 6 Above Knock/Combustion Vibration Sensor Threshold

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Generic OBD-II
P2342

Cylinder 7 Above Knock/Combustion Vibration Sensor Threshold

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Generic OBD-II
P2343

Cylinder 8 Above Knock/Combustion Vibration Sensor Threshold

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Generic OBD-II
P2344

Cylinder 9 Above Knock/Combustion Vibration Sensor Threshold

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Generic OBD-II
P2345

Cylinder 10 Above Knock/Combustion Vibration Sensor Threshold

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Generic OBD-II
P2346

Cylinder 11 Above Knock/Combustion Vibration Sensor Threshold

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Generic OBD-II
P2347

Cylinder 12 Above Knock/Combustion Vibration Sensor Threshold

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Generic OBD-II
P2348

Cylinder 9 Pressure Sensor Circuit

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Generic OBD-II
P2349

Cylinder 9 Pressure Sensor Circuit Range/Performance

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Generic OBD-II
P234A

Cylinder 9 Pressure Sensor Circuit Low

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Generic OBD-II
P234B

Cylinder 9 Pressure Sensor Circuit High

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Generic OBD-II
P234C

Cylinder 9 Pressure Sensor Circuit Intermittent/Erratic

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Generic OBD-II
P234D

Cylinder 9 Pressure Too Low

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Generic OBD-II
P234E

Cylinder 9 Pressure Too High

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Generic OBD-II
P234F

Cylinder 9 Pressure Variation Low

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Generic OBD-II
P2350

Cylinder 9 Pressure Variation High

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Generic OBD-II
P2351

Cylinder 9 Combustion Performance

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Generic OBD-II
P2352

Cylinder 10 Pressure Sensor Circuit

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Generic OBD-II
P2353

Cylinder 10 Pressure Sensor Circuit Range/Performance

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Generic OBD-II
P2354

Cylinder 10 Pressure Sensor Circuit Low

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Generic OBD-II
P2355

Cylinder 10 Pressure Sensor Circuit High

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Generic OBD-II
P2356

Cylinder 10 Pressure Sensor Circuit Intermittent/Erratic

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Generic OBD-II
P2357

Cylinder 10 Pressure Too Low

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Generic OBD-II
P2358

Cylinder 10 Pressure Too High

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Generic OBD-II
P2359

Cylinder 10 Pressure Variation Low

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Generic OBD-II
P235A

Cylinder 10 Pressure Variation High

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Generic OBD-II
P235B

Cylinder 10 Combustion Performance

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Generic OBD-II
P235C

Cylinder 11 Pressure Sensor Circuit

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Generic OBD-II
P235D

Cylinder 11 Pressure Sensor Circuit Range/Performance

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Generic OBD-II
P235E

Cylinder 11 Pressure Sensor Circuit Low

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Generic OBD-II
P235F

Cylinder 11 Pressure Sensor Circuit High

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Generic OBD-II
P2360

Cylinder 11 Pressure Sensor Circuit Intermittent/Erratic

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Generic OBD-II
P2361

Cylinder 11 Pressure Too Low

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Generic OBD-II
P2362

Cylinder 11 Pressure Too High

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Generic OBD-II
P2363

Cylinder 11 Pressure Variation Low

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Generic OBD-II
P2364

Cylinder 11 Pressure Variation High

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Generic OBD-II
P2365

Cylinder 11 Combustion Performance

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Generic OBD-II
P2366

Cylinder 12 Pressure Sensor Circuit

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Generic OBD-II
P2367

Cylinder 12 Pressure Sensor Circuit Range/Performance

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Generic OBD-II
P2368

Cylinder 12 Pressure Sensor Circuit Low

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Generic OBD-II
P2369

Cylinder 12 Pressure Sensor Circuit High

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Generic OBD-II
P236A

Cylinder 12 Pressure Sensor Circuit Intermittent/Erratic

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Generic OBD-II
P236B

Cylinder 12 Pressure Too Low

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Generic OBD-II
P236C

Cylinder 12 Pressure Too High

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Generic OBD-II
P236D

Cylinder 12 Pressure Variation Low

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Generic OBD-II
P236E

Cylinder 12 Pressure Variation High

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Generic OBD-II
P236F

Cylinder 12 Combustion Performance

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Generic OBD-II
P2370

Fuel Volume Regulator B Control Circuit/Open

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Generic OBD-II
P2371

Fuel Volume Regulator B Control Circuit Performance

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Generic OBD-II
P2372

Fuel Volume Regulator B Control Circuit Low

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Generic OBD-II
P2373

Fuel Volume Regulator B Control Circuit High

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Generic OBD-II
P2374

Turbocharger/Supercharger Inlet Pressure Sensor B Circuit

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Generic OBD-II
P2375

Turbocharger/Supercharger Inlet Pressure Sensor B Circuit Range/Performance

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Generic OBD-II
P2376

Turbocharger/Supercharger Inlet Pressure Sensor B Circuit Low

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Generic OBD-II
P2377

Turbocharger/Supercharger Inlet Pressure Sensor B Circuit High

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Generic OBD-II
P2378

Turbocharger/Supercharger Inlet Pressure Sensor B Circuit Intermittent/Erratic

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Generic OBD-II
P2379

O2 Sensor Out of Range During Deceleration Bank 2 Sensor 2

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Generic OBD-II
P237A

O2 Sensor Exhaust Sample Error Bank 1 Sensor 2

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Generic OBD-II
P237B

O2 Sensor Exhaust Sample Error Bank 2 Sensor 2

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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.