P23xx codes
256 codes in this group. The last column counts owner complaints that mention the code.
| Code | Meaning | Owner reports |
|---|---|---|
| P2300 | Ignition Coil A Primary Control Circuit Low | |
| P2301 | Ignition Coil A Primary Control Circuit High | |
| P2302 | Ignition Coil A Secondary Circuit | |
| P2303 | Ignition Coil B Primary Control Circuit Low | |
| P2304 | Ignition Coil B Primary Control Circuit High | |
| P2305 | Ignition Coil B Secondary Circuit | |
| P2306 | Ignition Coil C Primary Control Circuit Low | |
| P2307 | Ignition Coil C Primary Control Circuit High | |
| P2308 | Ignition Coil C Secondary Circuit | |
| P2309 | Ignition Coil D Primary Control Circuit Low | |
| P230A | Cylinder 1 Air-Fuel Ratio Imbalance - Adjustment At Limit During Balance | |
| P230B | Cylinder 2 Air-Fuel Ratio Imbalance - Adjustment At Limit During Balance | |
| P230C | Cylinder 3 Air-Fuel Ratio Imbalance - Adjustment At Limit During Balance | |
| P230D | Cylinder 4 Air-Fuel Ratio Imbalance - Adjustment At Limit During Balance | |
| P230E | Cylinder 5 Air-Fuel Ratio Imbalance - Adjustment At Limit During Balance | |
| P230F | Cylinder 6 Air-Fuel Ratio Imbalance - Adjustment At Limit During Balance | |
| P2310 | Ignition Coil D Primary Control Circuit High | |
| P2311 | Ignition Coil D Secondary Circuit | |
| P2312 | Ignition Coil E Primary Control Circuit Low | |
| P2313 | Ignition Coil E Primary Control Circuit High | |
| P2314 | Ignition Coil E Secondary Circuit | |
| P2315 | Ignition Coil F Primary Control Circuit Low | |
| P2316 | Ignition Coil F Primary Control Circuit High | |
| P2317 | Ignition Coil F Secondary Circuit | |
| P2318 | Ignition Coil G Primary Control Circuit Low | |
| P2319 | Ignition Coil G Primary Control Circuit High | |
| P231A | Cylinder 7 Air-Fuel Ratio Imbalance - Adjustment At Limit During Balance | |
| P231B | Cylinder 8 Air-Fuel Ratio Imbalance - Adjustment At Limit During Balance | |
| P231C | Cylinder 9 Air-Fuel Ratio Imbalance - Adjustment At Limit During Balance | |
| P231D | Cylinder 10 Air-Fuel Ratio Imbalance - Adjustment At Limit During Balance | |
| P231E | Cylinder 11 Air-Fuel Ratio Imbalance - Adjustment At Limit During Balance | |
| P231F | Cylinder 12 Air-Fuel Ratio Imbalance - Adjustment At Limit During Balance | |
| P2320 | Ignition Coil G Secondary Circuit | |
| P2321 | Ignition Coil H Primary Control Circuit Low | |
| P2322 | Ignition Coil H Primary Control Circuit High | |
| P2323 | Ignition Coil H Secondary Circuit | |
| P2324 | Ignition Coil I Primary Control Circuit Low | |
| P2325 | Ignition Coil I Primary Control Circuit High | |
| P2326 | Ignition Coil I Secondary Circuit | |
| P2327 | Ignition Coil J Primary Control Circuit Low | |
| P2328 | Ignition Coil J Primary Control Circuit High | |
| P2329 | Ignition Coil J Secondary Circuit | |
| P232A | TCM Request - Forced Engine Shutdown | |
| P232B | Cylinder 11 Fuel Injector A Offset Learning At Min Limit | |
| P232C | Cylinder 11 Fuel Injector A Offset Learning At Max Limit | |
| P232D | Cylinder 12 Fuel Injector A Offset Learning At Min Limit | |
| P232E | Cylinder 12 Fuel Injector A Offset Learning At Max Limit | |
| P232F | O2 Sensor Out of Range During Deceleration (Bank 1 Sensor 2) | |
| P2330 | Ignition Coil K Primary Control Circuit Low | |
| P2331 | Ignition Coil K Primary Control Circuit High | |
| P2332 | Ignition Coil K Secondary Circuit | |
| P2333 | Ignition Coil L Primary Control Circuit Low | |
| P2334 | Ignition Coil L Primary Control Circuit High | |
| P2335 | Ignition Coil L Secondary Circuit | |
| P2336 | Cylinder 1 Above Knock/Combustion Vibration Sensor Threshold | |
| P2337 | Cylinder 2 Above Knock/Combustion Vibration Sensor Threshold | |
| P2338 | Cylinder 3 Above Knock/Combustion Vibration Sensor Threshold | |
| P2339 | Cylinder 4 Above Knock/Combustion Vibration Sensor Threshold | |
| P233A | Fuel Pressure Regulator C Control Circuit/Open | |
| P233B | Fuel Pressure Regulator C Control Circuit Low | |
| P233C | Fuel Pressure Regulator C Control Circuit High | |
| P233D | Fuel Pressure Regulator B Solenoid Supply Voltage Control Circuit/Open | |
| P233E | Fuel Pressure Regulator B Solenoid Supply Voltage Control Circuit Low | |
| P233F | Fuel Pressure Regulator B Solenoid Supply Voltage Control Circuit High | |
| P2340 | Cylinder 5 Above Knock/Combustion Vibration Sensor Threshold | |
| P2341 | Cylinder 6 Above Knock/Combustion Vibration Sensor Threshold | |
| P2342 | Cylinder 7 Above Knock/Combustion Vibration Sensor Threshold | |
| P2343 | Cylinder 8 Above Knock/Combustion Vibration Sensor Threshold | |
| P2344 | Cylinder 9 Above Knock/Combustion Vibration Sensor Threshold | |
| P2345 | Cylinder 10 Above Knock/Combustion Vibration Sensor Threshold | |
| P2346 | Cylinder 11 Above Knock/Combustion Vibration Sensor Threshold | |
| P2347 | Cylinder 12 Above Knock/Combustion Vibration Sensor Threshold | |
| P2348 | Cylinder 9 Pressure Sensor Circuit | |
| P2349 | Cylinder 9 Pressure Sensor Circuit Range/Performance | |
| P234A | Cylinder 9 Pressure Sensor Circuit Low | |
| P234B | Cylinder 9 Pressure Sensor Circuit High | |
| P234C | Cylinder 9 Pressure Sensor Circuit Intermittent/Erratic | |
| P234D | Cylinder 9 Pressure Too Low | |
| P234E | Cylinder 9 Pressure Too High | |
| P234F | Cylinder 9 Pressure Variation Low | |
| P2350 | Cylinder 9 Pressure Variation High | |
| P2351 | Cylinder 9 Combustion Performance | |
| P2352 | Cylinder 10 Pressure Sensor Circuit | |
| P2353 | Cylinder 10 Pressure Sensor Circuit Range/Performance | |
| P2354 | Cylinder 10 Pressure Sensor Circuit Low | |
| P2355 | Cylinder 10 Pressure Sensor Circuit High | |
| P2356 | Cylinder 10 Pressure Sensor Circuit Intermittent/Erratic | |
| P2357 | Cylinder 10 Pressure Too Low | |
| P2358 | Cylinder 10 Pressure Too High | |
| P2359 | Cylinder 10 Pressure Variation Low | |
| P235A | Cylinder 10 Pressure Variation High | |
| P235B | Cylinder 10 Combustion Performance | |
| P235C | Cylinder 11 Pressure Sensor Circuit | |
| P235D | Cylinder 11 Pressure Sensor Circuit Range/Performance | |
| P235E | Cylinder 11 Pressure Sensor Circuit Low | |
| P235F | Cylinder 11 Pressure Sensor Circuit High | |
| P2360 | Cylinder 11 Pressure Sensor Circuit Intermittent/Erratic | |
| P2361 | Cylinder 11 Pressure Too Low | |
| P2362 | Cylinder 11 Pressure Too High | |
| P2363 | Cylinder 11 Pressure Variation Low | |
| P2364 | Cylinder 11 Pressure Variation High | |
| P2365 | Cylinder 11 Combustion Performance | |
| P2366 | Cylinder 12 Pressure Sensor Circuit | |
| P2367 | Cylinder 12 Pressure Sensor Circuit Range/Performance | |
| P2368 | Cylinder 12 Pressure Sensor Circuit Low | |
| P2369 | Cylinder 12 Pressure Sensor Circuit High | |
| P236A | Cylinder 12 Pressure Sensor Circuit Intermittent/Erratic | |
| P236B | Cylinder 12 Pressure Too Low | |
| P236C | Cylinder 12 Pressure Too High | |
| P236D | Cylinder 12 Pressure Variation Low | |
| P236E | Cylinder 12 Pressure Variation High | |
| P236F | Cylinder 12 Combustion Performance | |
| P2370 | Fuel Volume Regulator B Control Circuit/Open | |
| P2371 | Fuel Volume Regulator B Control Circuit Performance | |
| P2372 | Fuel Volume Regulator B Control Circuit Low | |
| P2373 | Fuel Volume Regulator B Control Circuit High | |
| P2374 | Turbocharger/Supercharger Inlet Pressure Sensor B Circuit | |
| P2375 | Turbocharger/Supercharger Inlet Pressure Sensor B Circuit Range/Performance | |
| P2376 | Turbocharger/Supercharger Inlet Pressure Sensor B Circuit Low | |
| P2377 | Turbocharger/Supercharger Inlet Pressure Sensor B Circuit High | |
| P2378 | Turbocharger/Supercharger Inlet Pressure Sensor B Circuit Intermittent/Erratic | |
| P2379 | O2 Sensor Out of Range During Deceleration (Bank 2 Sensor 2) | |
| P237A | O2 Sensor Exhaust Sample Error (Bank 1 Sensor 2) | |
| P237B | O2 Sensor Exhaust Sample Error (Bank 2 Sensor 2) | |
| P237C | Exhaust Heat Exchanger Exhaust Bypass Valve A Control Circuit/Open | |
| P237D | Exhaust Heat Exchanger Exhaust Bypass Valve A Control Circuit Low | |
| P237E | Exhaust Heat Exchanger Exhaust Bypass Valve A Control Circuit High | |
| P237F | Exhaust Heat Exchanger Exhaust Bypass Valve A Control Performance | |
| P2380 | EGR Sensor D Circuit | |
| P2381 | EGR Sensor D Circuit High | |
| P2382 | EGR Sensor D Circuit Low | |
| P2383 | EGR Sensor D Circuit Range/Performance | |
| P2384 | EGR Sensor D Circuit Intermittent | |
| P2385 | EGR Sensor E Circuit | |
| P2386 | EGR Sensor E Circuit High | |
| P2387 | EGR Sensor E Circuit Low | |
| P2388 | EGR Sensor E Circuit Range/Performance | |
| P2389 | EGR Sensor E Circuit Intermittent | |
| P238A | Water in Fuel Sensor B Circuit | |
| P238B | Water in Fuel Sensor B Circuit Range/Performance | |
| P238C | Water in Fuel Sensor B Circuit Low | |
| P238D | Water in Fuel Sensor B Circuit High | |
| P238E | Water in Fuel Sensor B Circuit Intermittent | |
| P238F | Water in Fuel Condition - Sensor B | |
| P2390 | Diesel Intake Air Flow B Control Circuit/Open | |
| P2391 | Diesel Intake Air Flow B Control Performance | |
| P2392 | Diesel Intake Air Flow B Control Circuit Low | |
| P2393 | Diesel Intake Air Flow B Control Circuit High | |
| P2394 | Diesel Intake Air Flow B Control Stuck Open | |
| P2395 | Diesel Intake Air Flow B Control Stuck Closed | |
| P2396 | Diesel Intake Air Flow B Position Sensor Circuit | |
| P2397 | Diesel Intake Air Flow B Position Sensor Range/Performance | |
| P2398 | Diesel Intake Air Flow B Position Sensor Circuit Low | |
| P2399 | Diesel Intake Air Flow B Position Sensor Circuit High | |
| P239A | Diesel Intake Air Flow B Position Sensor Circuit Intermittent/Erratic | |
| P239B | Diesel Intake Air Flow B Control Motor Current Range/Performance | |
| P239C | Diesel Intake Air Flow B Control System - High Air Flow Detected | |
| P239D | Diesel Intake Air Flow B Control System - Low Air Flow Detected | |
| P239E | O2 Sensor Out of Range During Deceleration (Bank 1 Sensor 2) - Duplicate Listing of P232F | |
| P239F | O2 Sensor Out of Range During Deceleration (Bank 2 Sensor 2) - Duplicate Listing of P2379 | |
| P23A0 | O2 Sensor Exhaust Sample Error (Bank 1 Sensor 2) - Duplicate Listing of P237A | |
| P23A1 | O2 Sensor Exhaust Sample Error (Bank 2 Sensor 2) - Duplicate Listing of P237B | |
| P23A2 | Exhaust Heat Exchanger Exhaust Bypass Valve B Control Circuit/Open | |
| P23A3 | Exhaust Heat Exchanger Exhaust Bypass Valve B Control Circuit Low | |
| P23A4 | Exhaust Heat Exchanger Exhaust Bypass Valve B Control Circuit High | |
| P23A5 | Exhaust Heat Exchanger Exhaust Bypass Valve B Control Performance | |
| P23A6 | Exhaust Heat Exchanger Exhaust Bypass Valve B Stuck Open | |
| P23A7 | Exhaust Heat Exchanger Exhaust Bypass Valve B Stuck Closed | |
| P23A8 | Exhaust Heat Exchanger Exhaust Bypass Valve B Position Sensor Stop Performance | |
| P23A9 | Communication Fault - Forced Engine Shutdown | |
| P23AA | Turbocharger/Supercharger Bypass Valve A Stuck | |
| P23AB | NOx Sensor Processor Performance (Bank 1 Sensor 3) | |
| P23AC | NOx Sensor Circuit (Bank 1 Sensor 3) | |
| P23AD | NOx Sensor Circuit Range/Performance (Bank 1 Sensor 3) | |
| P23AE | NOx Sensor Circuit Low (Bank 1 Sensor 3) | |
| P23AF | NOx Sensor Circuit High (Bank 1 Sensor 3) | |
| P23B0 | NOx Sensor Circuit Intermittent (Bank 1 Sensor 3) | |
| P23B1 | NOx Sensor Heater Control Circuit/Open (Bank 1 Sensor 3) | |
| P23B2 | NOx Sensor Heater Control Circuit Low (Bank 1 Sensor 3) | |
| P23B3 | NOx Sensor Heater Control Circuit High (Bank 1 Sensor 3) | |
| P23B4 | NOx Sensor Heater Sense Circuit (Bank 1 Sensor 3) | |
| P23B5 | NOx Sensor Heater Sense Circuit Range/Performance (Bank 1 Sensor 3) | |
| P23B6 | NOx Sensor Supply Voltage Circuit (Bank 1 Sensor 3) | |
| P23B7 | NOx Sensor Heater Control Circuit Range/Performance (Bank 1 Sensor 3) | |
| P23B8 | NOx Sensor Heater Sense Circuit Low (Bank 1 Sensor 3) | |
| P23B9 | NOx Sensor Heater Sense Circuit High (Bank 1 Sensor 3) | |
| P23BA | NOx Sensor Heater Sense Circuit Intermittent (Bank 1 Sensor 3) | |
| P23BB | NOx Sensor Heater Resistance (Bank 1 Sensor 3) | |
| P23BC | NOx Sensor Calibration Memory (Bank 1 Sensor 3) | |
| P23BD | NOx Sensor Performance - Signal Biased/Stuck High (Bank 1 Sensor 3) | |
| P23BE | NOx Sensor Performance - Signal Biased/Stuck Low (Bank 1 Sensor 3) | |
| P23BF | NOx Sensor Performance - Slow Response Low to High (Bank 1 Sensor 3) | |
| P23C0 | NOx Sensor Performance - Slow Response High to Low (Bank 1 Sensor 3) | |
| P23C1 | NOx Sensor Performance - Sensing Element (Bank 1 Sensor 3) | |
| P23C2 | NOx Sensor Delayed Response - High to Low (Bank 1 Sensor 3) | |
| P23C3 | Engine Coolant Bypass Valve C Position Sensor Circuit | |
| P23C4 | Engine Coolant Bypass Valve C Position Sensor Circuit Low | |
| P23C5 | Engine Coolant Bypass Valve C Position Sensor Circuit High | |
| P23C6 | Engine Coolant Bypass Valve C Control Circuit Driver Current/Temperature Too High | |
| P23C7 | Fuel Heater Control Module Power Control Circuit/Open | |
| P23C8 | Fuel Heater Control Module Power Control Circuit Low | |
| P23C9 | Fuel Heater Control Module Power Control Circuit High | |
| P23CA | Fuel Rail Heater Control Circuit/Open | |
| P23CB | Fuel Rail Heater Control Circuit Low | |
| P23CC | Fuel Rail Heater Control Circuit High | |
| P23CD | Fuel Heater Control Module Feedback Signal/Open | |
| P23CE | Fuel Heater Control Module Feedback Signal Performance | |
| P23CF | Fuel Heater Control Module Feedback Signal Circuit Low | |
| P23D0 | Fuel Heater Control Module Feedback Signal Circuit High | |
| P23D1 | Cylinder 1 Fuel Heater Control Circuit/Open | |
| P23D2 | Cylinder 1 Fuel Heater Control Circuit High | |
| P23D3 | Cylinder 1 Fuel Heater Control Circuit Low | |
| P23D4 | Cylinder 1 Fuel Heater Performance | |
| P23D5 | Cylinder 2 Fuel Heater Control Circuit/Open | |
| P23D6 | Cylinder 2 Fuel Heater Control Circuit High | |
| P23D7 | Cylinder 2 Fuel Heater Control Circuit Low | |
| P23D8 | Cylinder 2 Fuel Heater Performance | |
| P23D9 | Cylinder 3 Fuel Heater Control Circuit/Open | |
| P23DA | Cylinder 3 Fuel Heater Control Circuit High | |
| P23DB | Cylinder 3 Fuel Heater Control Circuit Low | |
| P23DC | Cylinder 3 Fuel Heater Performance | |
| P23DD | Cylinder 4 Fuel Heater Control Circuit/Open | |
| P23DE | Cylinder 4 Fuel Heater Control Circuit High | |
| P23DF | Cylinder 4 Fuel Heater Control Circuit Low | |
| P23E0 | Cylinder 4 Fuel Heater Performance | |
| P23E1 | EGR C Control Circuit/Open | |
| P23E2 | EGR C Control Circuit Performance | |
| P23E3 | EGR C Control Circuit Low | |
| P23E4 | EGR C Control Circuit High | |
| P23E5 | EGR C Control Stuck Open | |
| P23E6 | EGR C Control Stuck Closed | |
| P23E7 | EGR C Flow Insufficient Detected | |
| P23E8 | EGR C Flow Excessive Detected | |
| P23E9 | Camshaft A Position Signal Output Circuit/Open (Bank 2) | |
| P23EA | Camshaft A Position Signal Output Circuit Low (Bank 2) | |
| P23EB | Camshaft A Position Signal Output Circuit High (Bank 2) | |
| P23EC | Camshaft B Position Signal Output Circuit/Open (Bank 1) | |
| P23ED | Camshaft B Position Signal Output Circuit Low (Bank 1) | |
| P23EE | Camshaft B Position Signal Output Circuit High (Bank 1) | |
| P23EF | Camshaft B Position Signal Output Circuit/Open (Bank 2) | |
| P23F0 | Camshaft B Position Signal Output Circuit Low (Bank 2) | |
| P23F1 | Camshaft B Position Signal Output Circuit High (Bank 2) | |
| P23F2 | Cylinder 1 Injector B Air-Fuel Ratio Imbalance | |
| P23F3 | Cylinder 2 Injector B Air-Fuel Ratio Imbalance | |
| P23F4 | Cylinder 3 Injector B Air-Fuel Ratio Imbalance | |
| P23F5 | Cylinder 4 Injector B Air-Fuel Ratio Imbalance | |
| P23F6 | Cylinder 5 Injector B Air-Fuel Ratio Imbalance | |
| P23F7 | Cylinder 6 Injector B Air-Fuel Ratio Imbalance | |
| P23F8 | Cylinder 7 Injector B Air-Fuel Ratio Imbalance | |
| P23F9 | Cylinder 8 Injector B Air-Fuel Ratio Imbalance | |
| P23FA | Cylinder 9 Injector B Air-Fuel Ratio Imbalance | |
| P23FB | Cylinder 10 Injector B Air-Fuel Ratio Imbalance | |
| P23FC | Cylinder 11 Injector B Air-Fuel Ratio Imbalance | |
| P23FD | Cylinder 12 Injector B Air-Fuel Ratio Imbalance | |
| P23FE | Bank 1 System B Air-Fuel Ratio Imbalance | |
| P23FF | Bank 2 System B Air-Fuel Ratio Imbalance |