Engine-Codes - Generic - P1257

P1257 - VTEC System Malfunction

Repair Importance Level: 3/3
Repair Difficulty Level: 2/3  What is this?

P1257 Possible Causes

  • Engine oil level low
  • Low engine oil pressure
  • Blocked oil passage
  • Faulty VCT oil control valve

How do I fix code P1257

Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

Cost of diagnosing the P1257 code

Labor: 1.0

The cost of diagnosing the P1257 code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P1257 Meaning

The VTEC system, in conjunction with the Engine Control Module (ECM), activates the VTEC solenoid valve to control oil pressure to the VTEC mechanism that is installed in the valve system to switch valve timing between Low and High. If the VTEC solenoid valve has an open or short circuit, the P1257 code is set.

P1257 More Information

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