p1259
Moderate
Honda · Sedans
VTEC System Malfunction
Quick Answer
Error code P1259 on your Honda Sedans means: VTEC System Malfunction. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
CV3CV4FC1FC4FE1FL5ZC5Accord EX 2024Accord EX-L 2024Accord Hybrid EX-L 2024Accord Hybrid Sport 2024Accord Hybrid Touring 2024Accord LX 2024Accord Sport 2024Accord Touring 2024Civic EX 2024Civic Hybrid Sport 2025Civic Hybrid Sport Touring 2025Civic LX 2024Civic Si 2024Civic Sport 2024Civic Touring 2024Civic Type R 2024ZE4
Likely Causes
How to Fix It
1
Check engine oil level and condition; top off or change if low or degraded
2
Remove and inspect the VTEC solenoid valve screen/filter for debris and clogging
3
Test the VTEC solenoid valve resistance (typically 14-30 ohms); replace if out of specification
4
Check oil pressure with a mechanical gauge; compare to Honda specifications at idle and at RPM
5
Clean or replace the VTEC solenoid assembly and gasket
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
VTEC solenoid valve assembly
VTEC solenoid gasket
VTEC solenoid filter/screen
Engine oil and filter
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