Ignition Codes
743 OBD-II diagnostic trouble codes in this category.
Showing page 7 of 8 (743 codes total)
| Code | Description | Subsystem | Severity |
|---|---|---|---|
| P3407 | Cylinder 1 Exhaust Valve Control Circuit Low | Variable Valve Timing | Medium |
| P3408 | Cylinder 1 Exhaust Valve Control Circuit High | Variable Valve Timing | Medium |
| P3409 | Cylinder 2 Deactivation/Intake Valve Control Circuit/Open | Variable Valve Timing | Medium |
| P340A | Deactivation/Intake Valve Control Circuit Bank 1 | Ignition System | Medium |
| P340B | Deactivation/Intake Valve Control Circuit Bank 2 | Ignition System | Medium |
| P340C | Deactivation/Exhaust Valve Control Circuit Bank 1 | Ignition System | Medium |
| P340D | Deactivation/Exhaust Valve Control Circuit Bank 2 | Ignition System | Medium |
| P3410 | Cylinder 2 Deactivation/Intake Valve Control Circuit Performance | Variable Valve Timing | Medium |
| P3411 | Cylinder 2 Deactivation/Intake Valve Control Circuit Low | Variable Valve Timing | Medium |
| P3412 | Cylinder 2 Deactivation/Intake Valve Control Circuit High | Variable Valve Timing | Medium |
| P3413 | Cylinder 2 Exhaust Valve Control Circuit/Open | Variable Valve Timing | Medium |
| P3414 | Cylinder 2 Exhaust Valve Control Circuit Performance | Variable Valve Timing | Medium |
| P3415 | Cylinder 2 Exhaust Valve Control Circuit Low | Variable Valve Timing | Medium |
| P3416 | Cylinder 2 Exhaust Valve Control Circuit High | Variable Valve Timing | Medium |
| P3417 | Cylinder 3 Deactivation/Intake Valve Control Circuit/Open | Variable Valve Timing | Medium |
| P3418 | Cylinder 3 Deactivation/Intake Valve Control Circuit Performance | Variable Valve Timing | Medium |
| P3419 | Cylinder 3 Deactivation/Intake Valve Control Circuit Low | Variable Valve Timing | Medium |
| P341A | Deactivation/Intake Valve Control Circuit Performance Bank 1 | Ignition System | Medium |
| P341B | Deactivation/Intake Valve Control Circuit Performance Bank 2 | Ignition System | Medium |
| P341C | Deactivation/Exhaust Valve Control Circuit Performance Bank 1 | Ignition System | Medium |
| P341D | Deactivation/Exhaust Valve Control Circuit Performance Bank 2 | Ignition System | Medium |
| P3420 | Cylinder 3 Deactivation/Intake Valve Control Circuit High | Variable Valve Timing | Medium |
| P3421 | Cylinder 3 Exhaust Valve Control Circuit/Open | Variable Valve Timing | Medium |
| P3422 | Cylinder 3 Exhaust Valve Control Circuit Performance | Variable Valve Timing | Medium |
| P3423 | Cylinder 3 Exhaust Valve Control Circuit Low | Variable Valve Timing | Medium |
| P3424 | Cylinder 3 Exhaust Valve Control Circuit High | Variable Valve Timing | Medium |
| P3425 | Cylinder 4 Deactivation/Intake Valve Control Circuit/Open | Variable Valve Timing | Medium |
| P3426 | Cylinder 4 Deactivation/Intake Valve Control Circuit Performance | Variable Valve Timing | Medium |
| P3427 | Cylinder 4 Deactivation/Intake Valve Control Circuit Low | Variable Valve Timing | Medium |
| P3428 | Cylinder 4 Deactivation/Intake Valve Control Circuit High | Variable Valve Timing | Medium |
| P3429 | Cylinder 4 Exhaust Valve Control Circuit/Open | Variable Valve Timing | Medium |
| P3430 | Cylinder 4 Exhaust Valve Control Circuit Performance | Variable Valve Timing | Medium |
| P3431 | Cylinder 4 Exhaust Valve Control Circuit Low | Variable Valve Timing | Medium |
| P3432 | Cylinder 4 Exhaust Valve Control Circuit High | Variable Valve Timing | Medium |
| P3433 | Cylinder 5 Deactivation/Intake Valve Control Circuit/Open | Variable Valve Timing | Medium |
| P3434 | Cylinder 5 Deactivation/Intake Valve Control Circuit Performance | Variable Valve Timing | Medium |
| P3435 | Cylinder 5 Deactivation/Intake Valve Control Circuit Low | Variable Valve Timing | Medium |
| P3436 | Cylinder 5 Deactivation/Intake Valve Control Circuit High | Variable Valve Timing | Medium |
| P3437 | Cylinder 5 Exhaust Valve Control Circuit/Open | Variable Valve Timing | Medium |
| P3438 | Cylinder 5 Exhaust Valve Control Circuit Performance | Variable Valve Timing | Medium |
| P3439 | Cylinder 5 Exhaust Valve Control Circuit Low | Variable Valve Timing | Medium |
| P3440 | Cylinder 5 Exhaust Valve Control Circuit High | Variable Valve Timing | Medium |
| P3441 | Cylinder 6 Deactivation/Intake Valve Control Circuit/Open | Variable Valve Timing | Medium |
| P3442 | Cylinder 6 Deactivation/Intake Valve Control Circuit Performance | Variable Valve Timing | Medium |
| P3443 | Cylinder 6 Deactivation/Intake Valve Control Circuit Low | Variable Valve Timing | Medium |
| P3444 | Cylinder 6 Deactivation/Intake Valve Control Circuit High | Variable Valve Timing | Medium |
| P3445 | Cylinder 6 Exhaust Valve Control Circuit/Open | Variable Valve Timing | Medium |
| P3446 | Cylinder 6 Exhaust Valve Control Circuit Performance | Variable Valve Timing | Medium |
| P3447 | Cylinder 6 Exhaust Valve Control Circuit Low | Variable Valve Timing | Medium |
| P3448 | Cylinder 6 Exhaust Valve Control Circuit High | Variable Valve Timing | Medium |
| P3449 | Cylinder 7 Deactivation/Intake Valve Control Circuit/Open | Variable Valve Timing | Medium |
| P3450 | Cylinder 7 Deactivation/Intake Valve Control Circuit Performance | Variable Valve Timing | Medium |
| P3451 | Cylinder 7 Deactivation/Intake Valve Control Circuit Low | Variable Valve Timing | Medium |
| P3452 | Cylinder 7 Deactivation/Intake Valve Control Circuit High | Variable Valve Timing | Medium |
| P3453 | Cylinder 7 Exhaust Valve Control Circuit/Open | Variable Valve Timing | Medium |
| P3454 | Cylinder 7 Exhaust Valve Control Circuit Performance | Variable Valve Timing | Medium |
| P3455 | Cylinder 7 Exhaust Valve Control Circuit Low | Variable Valve Timing | Medium |
| P3456 | Cylinder 7 Exhaust Valve Control Circuit High | Variable Valve Timing | Medium |
| P3457 | Cylinder 8 Deactivation/Intake Valve Control Circuit/Open | Variable Valve Timing | Medium |
| P3458 | Cylinder 8 Deactivation/Intake Valve Control Circuit Performance | Variable Valve Timing | Medium |
| P3459 | Cylinder 8 Deactivation/Intake Valve Control Circuit Low | Variable Valve Timing | Medium |
| P3460 | Cylinder 8 Deactivation/Intake Valve Control Circuit High | Variable Valve Timing | Medium |
| P3461 | Cylinder 8 Exhaust Valve Control Circuit/Open | Variable Valve Timing | Medium |
| P3462 | Cylinder 8 Exhaust Valve Control Circuit Performance | Variable Valve Timing | Medium |
| P3463 | Cylinder 8 Exhaust Valve Control Circuit Low | Variable Valve Timing | Medium |
| P3464 | Cylinder 8 Exhaust Valve Control Circuit High | Variable Valve Timing | Medium |
| P3465 | Cylinder 9 Deactivation/Intake Valve Control Circuit/Open | Variable Valve Timing | Medium |
| P3466 | Cylinder 9 Deactivation/Intake Valve Control Circuit Performance | Variable Valve Timing | Medium |
| P3467 | Cylinder 9 Deactivation/Intake Valve Control Circuit Low | Variable Valve Timing | Medium |
| P3468 | Cylinder 9 Deactivation/Intake Valve Control Circuit High | Variable Valve Timing | Medium |
| P3469 | Cylinder 9 Exhaust Valve Control Circuit/Open | Variable Valve Timing | Medium |
| P3470 | Cylinder 9 Exhaust Valve Control Circuit Performance | Variable Valve Timing | Medium |
| P3471 | Cylinder 9 Exhaust Valve Control Circuit Low | Variable Valve Timing | Medium |
| P3472 | Cylinder 9 Exhaust Valve Control Circuit High | Variable Valve Timing | Medium |
| P3473 | Cylinder 10 Deactivation/Intake Valve Control Circuit/Open | Variable Valve Timing | Medium |
| P3474 | Cylinder 10 Deactivation/Intake Valve Control Circuit Performance | Variable Valve Timing | Medium |
| P3475 | Cylinder 10 Deactivation/Intake Valve Control Circuit Low | Variable Valve Timing | Medium |
| P3476 | Cylinder 10 Deactivation/Intake Valve Control Circuit High | Variable Valve Timing | Medium |
| P3477 | Cylinder 10 Exhaust Valve Control Circuit/Open | Variable Valve Timing | Medium |
| P3478 | Cylinder 10 Exhaust Valve Control Circuit Performance | Variable Valve Timing | Medium |
| P3479 | Cylinder 10 Exhaust Valve Control Circuit Low | Variable Valve Timing | Medium |
| P3480 | Cylinder 10 Exhaust Valve Control Circuit High | Variable Valve Timing | Medium |
| P3481 | Cylinder 11 Deactivation/Intake Valve Control Circuit/Open | Variable Valve Timing | Medium |
| P3482 | Cylinder 11 Deactivation/Intake Valve Control Circuit Performance | Variable Valve Timing | Medium |
| P3483 | Cylinder 11 Deactivation/Intake Valve Control Circuit Low | Variable Valve Timing | Medium |
| P3484 | Cylinder 11 Deactivation/Intake Valve Control Circuit High | Variable Valve Timing | Medium |
| P3485 | Cylinder 11 Exhaust Valve Control Circuit/Open | Variable Valve Timing | Medium |
| P3486 | Cylinder 11 Exhaust Valve Control Circuit Performance | Variable Valve Timing | Medium |
| P3487 | Cylinder 11 Exhaust Valve Control Circuit Low | Variable Valve Timing | Medium |
| P3488 | Cylinder 11 Exhaust Valve Control Circuit High | Variable Valve Timing | Medium |
| P3489 | Cylinder 12 Deactivation/Intake Valve Control Circuit/Open | Variable Valve Timing | Medium |
| P3490 | Cylinder 12 Deactivation/Intake Valve Control Circuit Performance | Variable Valve Timing | Medium |
| P3491 | Cylinder 12 Deactivation/Intake Valve Control Circuit Low | Variable Valve Timing | Medium |
| P3492 | Cylinder 12 Deactivation/Intake Valve Control Circuit High | Variable Valve Timing | Medium |
| P3493 | Cylinder 12 Exhaust Valve Control Circuit/Open | Variable Valve Timing | Medium |
| P3494 | Cylinder 12 Exhaust Valve Control Circuit Performance | Variable Valve Timing | Medium |
| P3495 | Cylinder 12 Exhaust Valve Control Circuit Low | Variable Valve Timing | Medium |
| P3496 | Cylinder 12 Exhaust Valve Control Circuit High | Variable Valve Timing | Medium |
| P3498 | Cylinder 1 Deactivation/Intake Valve Performance | Variable Valve Timing | Medium |
| P3499 | Cylinder 2 Deactivation/Intake Valve Performance | Variable Valve Timing | Medium |
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.