Error code
OBD2 P3493
OBD2P3493
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
Cylinder 12 Exhaust Valve Control Circuit/Open.
Severity
highDriving with this code may cause further engine damage and should be addressed immediately.
Summary
P3493 indicates an issue with the exhaust valve control circuit or open condition in cylinder 12 of the engine.
Common Causes
- Faulty exhaust valve control solenoid for cylinder 12
- Open circuit in the wiring harness related to cylinder 12
Fixes
FAQ
What does P3493 mean?
P3493 indicates a problem with the exhaust valve control circuit or open condition in cylinder 12 of your engine.
Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
More OBD2 codes
- P3400Cylinder Deactivation System
- P3401Cylinder 1 Deactivation/lntake Valve Control Circuit/Open
- P3402Cylinder 1 Deactivation/lntake Valve Control Performance
- P3403Cylinder 1 Deactivation/lntake Valve Control Circuit Low
- P3404Cylinder 1 Deactivation/lntake Valve Control Circuit High
- P3405Cylinder 1 Exhaust Valve Control Circuit/Open
- P3406Cylinder 1 Exhaust Valve Control Performance
- P3407Cylinder 1 Exhaust Valve Control Circuit Low
- P3408Cylinder 1 Exhaust Valve Control Circuit High
- P3409Cylinder 2 Deactivation/lntake Valve Control Circuit/Open
- P3410Cylinder 2 Deactivation/lntake Valve Control Performance
- P3411Cylinder 2 Deactivation/lntake Valve Control Circuit Low