P1259
VTEC System Malfunction Bank 1
2016-2021 Honda Civic 2.0L I4
Moderate SeverityPowertrain
Description
VTEC oil pressure switch did not indicate proper pressure when commanded.
Symptoms
- CEL
- Loss of power above 4000 RPM
- Cannot rev past 4000
- Rough idle
- Decreased economy
Common Causes
- Low oil level
- Dirty/degraded oil
- Faulty VTEC solenoid
- Clogged oil screens
Diagnostic Steps
- Check oil level/condition
- Test VTEC solenoid
- Clean VTEC screen filter
- Monitor oil pressure
Repair Notes
Change oil. Replace VTEC solenoid or clean screens.
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P1259 on Other Vehicles
Common Questions
What does code P1259 mean on a 2016-2021 Honda Civic?
P1259 stands for "VTEC System Malfunction Bank 1". VTEC oil pressure switch did not indicate proper pressure when commanded.
What are the symptoms of P1259 on a Honda Civic?
Common symptoms of P1259 include: CEL, Loss of power above 4000 RPM, Cannot rev past 4000, Rough idle, Decreased economy.
What causes P1259 on a 2016-2021 Honda Civic?
Common causes of P1259 include: Low oil level, Dirty/degraded oil, Faulty VTEC solenoid, Clogged oil screens.