Error code
OBD2 P3431
OBD2P3431
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
Cylinder 4 Exhaust Valve Control Circuit Low.
Severity
moderateCan drive but may experience reduced performance and increased emissions.
Summary
P3431 indicates an issue with the exhaust valve control circuit in cylinder 4, which is part of the engine's emission control system.
Common Causes
- Faulty exhaust valve control solenoid or wiring issues related to cylinder 4
Fixes
- Replacing the faulty exhaust valve control solenoid for cylinder 4.
FAQ
What does P3431 mean?
P3431 indicates a low signal issue in the exhaust valve control circuit of cylinder 4.
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