P257A - Vacuum Reservoir Control Circuit/Open

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3    What is this?
Table of contents

P257A Possible Causes

  • Faulty Vacuum Reservoir Control
  • Vacuum Reservoir Control harness is open or shorted
  • Vacuum Reservoir Control circuit poor electrical connection

How do I fix code P257A?

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 P257A code

Labor: 1.0

The cost of diagnosing the P257A code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

Possible Symptoms

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

P257a Description

The Engine Control Module (ECM) monitors the Vacuum Reservoir Control Circuit signal. The ECM sets the OBDII code when the Vacuum Reservoir Control Circuit signal is out of factory specifications.
OBDII Code P257a - Vacuum Reservoir Control Circuit/Open - AutoCodes.com

P257A More Information

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