Ignition Codes
743 OBD-II diagnostic trouble codes in this category.
Showing page 2 of 8 (743 codes total)
| Code | Description | Subsystem | Severity |
|---|---|---|---|
| P031C | Ignition C Control Signal Circuit High | Variable Valve Timing | Medium |
| P031D | Ignition D Control Signal Circuit/Open | Variable Valve Timing | Medium |
| P031E | Ignition D Control Signal Circuit Low | Variable Valve Timing | Medium |
| P031F | Ignition D Control Signal Circuit High | Variable Valve Timing | Medium |
| P0320 | Ignition/Distributor Engine Speed Input Circuit | Crankshaft | High |
| P0321 | Ignition/Distributor Engine Speed Input Circuit Range/Performance | Crankshaft Sensor | Medium |
| P0322 | Ignition/Distributor Engine Speed Input Circuit No Signal | Crankshaft Sensor | High |
| P0323 | Ignition/Distributor Engine Speed Input Circuit Intermittent | Crankshaft Sensor | Medium |
| P0324 | Knock/Combustion Vibration Control System Error | Knock Sensor | Medium |
| P0325 | Knock Sensor 1 Circuit (Bank 1) | Knock Sensor | Medium |
| P0326 | Knock Sensor 1 Circuit Range/Performance (Bank 1) | Knock Sensor | Medium |
| P0327 | Knock Sensor 1 Circuit Low (Bank 1) | Knock Sensor | Medium |
| P0328 | Knock Sensor 1 Circuit High (Bank 1) | Knock Sensor | Medium |
| P0329 | Knock Sensor 1 Circuit Intermittent Bank 1 | Knock Sensor | Low |
| P0330 | Knock Sensor 2 Circuit (Bank 2) | Knock Sensor | Medium |
| P0331 | Knock Sensor 2 Circuit Range/Performance Bank 2 | Knock Sensor | Medium |
| P0332 | Knock Sensor 2 Circuit Low (Bank 2) | Knock Sensor | Medium |
| P0333 | Knock Sensor 2 Circuit High Input Bank 2 | Knock Sensor | Medium |
| P0334 | Knock Sensor 2 Circuit Intermittent Bank 2 | Knock Sensor | Low |
| P0335 | Crankshaft Position Sensor A Circuit | Crankshaft | High |
| P0336 | Crankshaft Position Sensor A Circuit Range/Performance | Crankshaft | High |
| P0337 | Crankshaft Position Sensor A Circuit Low Input | Crankshaft Sensor | High |
| P0338 | Crankshaft Position Sensor A Circuit High Input | Crankshaft Sensor | High |
| P0339 | Crankshaft Position Sensor A Circuit Intermittent | Crankshaft Sensor | High |
| P033F | Crankshaft/Camshaft Loss Of Synchronization | Variable Valve Timing | Medium |
| P0340 | Camshaft Position Sensor Circuit (Bank 1) | Camshaft | High |
| P0341 | Camshaft Position Sensor Circuit Range/Performance (Bank 1) | Camshaft | High |
| P0342 | Camshaft Position Sensor A Circuit Low Input Bank 1 | Camshaft Sensor | High |
| P0343 | Camshaft Position Sensor A Circuit High Input Bank 1 | Camshaft Sensor | High |
| P0344 | Camshaft Position Sensor A Circuit Intermittent Bank 1 | Camshaft Sensor | Medium |
| P0345 | Camshaft Position Sensor Circuit (Bank 2) | Camshaft | High |
| P0346 | Camshaft Position Sensor A Circuit Range/Performance Bank 2 | Camshaft Sensor | Medium |
| P0347 | Camshaft Position Sensor A Circuit Low Input Bank 2 | Camshaft Sensor | High |
| P0348 | Camshaft Position Sensor A Circuit High Input Bank 2 | Camshaft Sensor | High |
| P0349 | Camshaft Position Sensor A Circuit Intermittent Bank 2 | Camshaft Sensor | Medium |
| P034A | Crankshaft Position Sensor - Crankshaft Start Position Incorrect | Variable Valve Timing | Medium |
| P034B | Crankshaft Position Sensor - Crankshaft Direction Incorrect | Variable Valve Timing | Medium |
| P0350 | Ignition Coil Primary/Secondary Circuit | Ignition Coil | High |
| P0351 | Ignition Coil A Primary/Secondary Circuit | Ignition Coil | High |
| P0352 | Ignition Coil B Primary/Secondary Circuit | Ignition Coil | High |
| P0353 | Ignition Coil C Primary/Secondary Circuit | Ignition Coil | High |
| P0354 | Ignition Coil D Primary/Secondary Circuit | Ignition Coil | High |
| P0355 | Ignition Coil E Primary/Secondary Circuit | Ignition Coil | High |
| P0356 | Ignition Coil F Primary/Secondary Circuit | Ignition Coil | High |
| P0357 | Ignition Coil G Primary/Secondary Circuit | Ignition Coil | High |
| P0358 | Ignition Coil H Primary/Secondary Circuit | Ignition Coil | High |
| P0359 | Ignition Coil I Primary/Secondary Circuit | Ignition Coil | Medium |
| P035A | Ignition E Control Signal Circuit/Open | Variable Valve Timing | Medium |
| P035B | Ignition E Control Signal Circuit Low | Variable Valve Timing | Medium |
| P035C | Ignition E Control Signal Circuit High | Variable Valve Timing | Medium |
| P035D | Ignition F Control Signal Circuit/Open | Variable Valve Timing | Medium |
| P035E | Ignition F Control Signal Circuit Low | Variable Valve Timing | Medium |
| P035F | Ignition F Control Signal Circuit High | Variable Valve Timing | Medium |
| P0360 | Ignition Coil J Primary/Secondary Circuit | Ignition Coil | Medium |
| P0361 | Ignition Coil K Primary/Secondary Circuit | Ignition Coil | Medium |
| P0362 | Ignition Coil L Primary/Secondary Circuit | Ignition Coil | Medium |
| P0363 | Misfire Detected - Fueling Disabled | Misfire Detection | Critical |
| P0364 | DC/AC Converter Control Module Control Circuit Range/Performance | Ignition System | Medium |
| P0365 | Camshaft Position Sensor B Circuit Bank 1 | Camshaft Sensor | High |
| P0366 | Camshaft Position Sensor B Circuit Range/Performance Bank 1 | Camshaft Sensor | Medium |
| P0367 | Camshaft Position Sensor B Circuit Low Input Bank 1 | Camshaft Sensor | High |
| P0368 | Camshaft Position Sensor B Circuit High Input Bank 1 | Camshaft Sensor | High |
| P0369 | Camshaft Position Sensor B Circuit Intermittent Bank 1 | Camshaft Sensor | Medium |
| P036A | Ignition G Control Signal Circuit/Open | Variable Valve Timing | Medium |
| P036B | Ignition G Control Signal Circuit Low | Variable Valve Timing | Medium |
| P036C | Ignition G Control Signal Circuit High | Variable Valve Timing | Medium |
| P036D | Ignition H Control Signal Circuit/Open | Variable Valve Timing | Medium |
| P036E | Ignition H Control Signal Circuit Low | Variable Valve Timing | Medium |
| P036F | Ignition H Control Signal Circuit High | Variable Valve Timing | Medium |
| P0370 | Timing Reference High Resolution Signal A | Crankshaft Sensor | High |
| P0371 | Timing Reference High Resolution Signal A Too Many Pulses | Ignition System | Medium |
| P0372 | Timing Reference High Resolution Signal A Too Few Pulses | Ignition System | Medium |
| P0373 | Timing Reference High Resolution Signal A Intermittent/Erratic Pulses | Ignition System | Medium |
| P0374 | Timing Reference High Resolution Signal A No Pulses | Ignition System | Medium |
| P0375 | Timing Reference High Resolution Signal B | Ignition System | Medium |
| P0376 | Timing Reference High Resolution Signal B Too Many Pulses | Ignition System | Medium |
| P0377 | Timing Reference High Resolution Signal B Too Few Pulses | Ignition System | Medium |
| P0378 | Timing Reference High Resolution Signal B Intermittent/Erratic Pulses | Ignition System | Medium |
| P0379 | Timing Reference High Resolution Signal B No Pulses | Ignition System | Medium |
| P037C | Cold Start Camshaft Profile System Performance | Variable Valve Timing | Medium |
| P0380 | Glow Plug/Heater Circuit A | Glow Plug System | Medium |
| P0381 | Glow Plug/Heater Indicator Circuit | Glow Plug System | Low |
| P0382 | Glow Plug/Heater Circuit B | Glow Plug System | Medium |
| P0383 | Glow Plug Control Module 1 Control Circuit Low | Glow Plug System | Medium |
| P0384 | Glow Plug Control Module 1 Control Circuit High | Glow Plug System | Medium |
| P0385 | Crankshaft Position Sensor B Circuit | Crankshaft Sensor | Medium |
| P0386 | Crankshaft Position Sensor B Circuit Range/Performance | Crankshaft Sensor | Medium |
| P0387 | Crankshaft Position Sensor B Circuit Low Input | Crankshaft Sensor | Medium |
| P0388 | Crankshaft Position Sensor B Circuit High Input | Crankshaft Sensor | Medium |
| P0389 | Crankshaft Position Sensor B Circuit Intermittent | Crankshaft Sensor | Medium |
| P038A | Ignition I Control Signal Circuit/Open | Variable Valve Timing | Medium |
| P038B | Ignition I Control Signal Circuit Low | Variable Valve Timing | Medium |
| P038C | Ignition I Control Signal Circuit High | Variable Valve Timing | Medium |
| P038D | Ignition J Control Signal Circuit/Open | Variable Valve Timing | Medium |
| P038E | Ignition J Control Signal Circuit Low | Variable Valve Timing | Medium |
| P038F | Ignition J Control Signal Circuit High | Variable Valve Timing | Medium |
| P0390 | Camshaft Position Sensor B Circuit Bank 2 | Camshaft Sensor | High |
| P0391 | Camshaft Position Sensor B Circuit Range/Performance Bank 2 | Camshaft Sensor | Medium |
| P0392 | Camshaft Position Sensor B Circuit Low Input Bank 2 | Camshaft Sensor | High |
| P0393 | Camshaft Position Sensor B Circuit High Input Bank 2 | Camshaft Sensor | High |
About Ignition Codes
This page lists all 743 OBD-II diagnostic trouble codes classified under the Ignition category. These codes are stored by your vehicle's onboard computer when a sensor detects a malfunction in the ignition system. Each code begins with a letter indicating the system (P for Powertrain, B for Body, C for Chassis, U for Network) followed by four digits that identify the specific fault.
When your check engine light comes on, an OBD-II scanner reads these stored codes to help pinpoint the problem. Generic codes (where the second digit is 0) follow the SAE J2012 standard and mean the same thing on every vehicle. Manufacturer-specific codes (where the second digit is 1) may have different meanings depending on the vehicle brand.
Click any code in the table above to see its full description, possible causes, common symptoms, and step-by-step repair guidance. Use the search box to quickly find a specific code within this category.