Error code
OBD2 P3491
OBD2P3491
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
Cylinder 12 Deactivation/lntake Valve Control Circuit Low.
Severity
moderateCan be driven, but performance may suffer and fuel efficiency could decrease.
Summary
P3491 indicates an issue with the intake valve control circuit in cylinder 12, specifically that it is reading a low signal. This code relates to the engine's deactivation system for cylinder 12.
Common Causes
- Faulty intake valve control solenoid or wiring issues related to cylinder 12
Fixes
- Replace the faulty intake valve control solenoid or repair wiring issues related to cylinder 12.
FAQ
What does P3491 mean?
P3491 indicates a problem with the intake valve control circuit in cylinder 12, typically due to a faulty solenoid or wiring issue.
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