Engine-CodesDodge – P0459 Dodge

P0459 Dodge Code - Evaporative Emission Purge Solenoid Control Circuit High Voltage

Quick Answer

The P0459 diagnostic trouble code (DTC) for Dodge vehicles specifically relates to the evaporative emission purge solenoid control circuit registering high voltage. Common causes include Faulty purge solenoid, Wiring or connector issues in the control circuit, Vacuum leaks in the evaporative emission system. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means
P0459 Dodge indicates Evaporative Emission Purge Solenoid Control Circuit High Voltage.
Common causes
Common causes include Faulty purge solenoid, Wiring or connector issues in the control circuit, Vacuum leaks in the evaporative emission system.
Severity
Low - monitor the vehicle and repair when practical.
Can I drive?
The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
Table of contents Created and updated by William Orellana on Sep 08, 2024
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Code P0459 Dodge Description

The P0459 diagnostic trouble code (DTC) for Dodge vehicles specifically relates to the evaporative emission purge solenoid control circuit registering high voltage. The evaporative emission system is designed to capture and store fuel vapors that would otherwise be released into the atmosphere, reducing harmful emissions. The purge solenoid is responsible for controlling the flow of fuel vapors from the charcoal canister to the engine, where they can be burned off and not released into the air.

OBDII Code P0459 Dodge - Evaporative Emission Purge Solenoid Control Circuit High Voltage
P0459 Dodge Code - Evaporative Emission Purge Solenoid Control Circuit High Voltage

Common Causes of P0459 Dodge

  1. Faulty purge solenoid
  2. Wiring or connector issues in the control circuit
  3. Vacuum leaks in the evaporative emission system
  4. Faulty PCM (Powertrain Control Module)
  5. Corrosion or damage to electrical connections

Symptoms of P0459 Dodge

  1. Check engine light illuminated on the dashboard
  2. Decreased fuel efficiency
  3. Rough idling or stalling
  4. Strong fuel odor near the vehicle
  5. Failed emissions test

How to Fix P0459 Dodge

  1. Begin by diagnosing the issue using a diagnostic scanner to confirm the P0459 code and pinpoint the exact cause.
  2. Inspect the wiring and connectors in the purge solenoid control circuit for any damage or corrosion. Repair or replace as necessary.
  3. Test the purge solenoid itself to ensure it is functioning properly. Replace if faulty.
  4. Check for vacuum leaks in the evaporative emission system and repair as needed.
  5. Clear the DTC and perform a test drive to ensure the issue has been resolved.

Cost to Fix P0459 Dodge

The typical repair costs for addressing a P0459 code can vary depending on the specific cause of the issue. In general, parts for this repair, such as a new purge solenoid or wiring components, can range from $50 to $200. Labor costs at auto repair shops typically range from $80 to $150 per hour. Therefore, the total cost of the repair could range from $150 to $500 or more, depending on the extent of the issue and the shop's labor rates. It's recommended to consult with a qualified mechanic or repair shop for a more accurate estimate based on your vehicle's make and model.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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