P0459 Code - Evaporative Emission Purge Solenoid Control Circuit High Voltage
Quick Answer
The P0459 OBD-II trouble code indicates a problem with the evaporative emission control system, specifically related to the purge solenoid control circuit experiencing high voltage. Common causes include Faulty purge solenoid, Damaged or corroded wiring in the control circuit, Blown fuse 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 indicates Evaporative Emission Purge Solenoid Control Circuit High Voltage.
- Common causes
- Common causes include Faulty purge solenoid, Damaged or corroded wiring in the control circuit, Blown fuse 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.
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Code P0459 Description
The P0459 OBD-II trouble code indicates a problem with the evaporative emission control system, specifically related to the purge solenoid control circuit experiencing high voltage. The evaporative emission system is responsible for preventing harmful fuel vapors from escaping into the atmosphere by storing them in a charcoal canister and then purging them into the engine to be burned. The purge solenoid is a key component that controls this process by regulating the flow of fuel vapors.
Common Causes of P0459
- Faulty purge solenoid
- Damaged or corroded wiring in the control circuit
- Blown fuse in the evaporative emission system
- Malfunctioning PCM
- Vacuum leak in the system
Symptoms of P0459
- Check engine light illuminated
- Reduced fuel efficiency
- Rough idling or stalling
- Strong fuel odor
- Failed emissions test
How to Fix P0459
- Diagnose the issue using an OBD-II scanner to confirm the P0459 code and identify the specific problem.
- Inspect the purge solenoid and its wiring for any signs of damage or corrosion. Replace any faulty components.
- Check the fuse related to the evaporative emission system and replace it if necessary.
- Test the PCM to ensure it is functioning correctly. Replace if it is found to be the cause of the high voltage.
- Clear the trouble code from the vehicle's memory and perform a test drive to ensure the issue has been resolved.
Cost to Fix P0459
The typical repair costs for addressing a P0459 code can vary depending on the specific cause of the issue and the labor rates at the auto repair shop. On average, the repair may cost between $100 to $300, including parts and labor. However, it's important to note that rates can vary significantly based on location, vehicle make and model, and the complexity of the repair. Customers are advised to obtain quotes from multiple shops to get a more accurate estimate. Additionally, diagnostic time and labor rates can impact the final cost, with rates typically ranging between $80 to $150 per hour.
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Code P0459 Information for Specific Makes
- P0459 Audi — EVAP System Purge Control Solenoid High
- P0459 BMW — Evaporative Emission Purge Solenoid Control Circuit High Voltage
- P0459 Buick — Evaporative Emission Purge Solenoid Valve Control Circuit High Voltage
- P0459 Cadillac — Evaporative Emission Purge Solenoid Valve Control Circuit High Voltage
- P0459 Chevrolet — Evaporative Emission Purge Solenoid Valve Control Circuit High Voltage
- P0459 Chrysler — Evaporative Emission Purge Solenoid Control Circuit High Voltage
- P0459 Dodge — Evaporative Emission Purge Solenoid Control Circuit High Voltage
- P0459 GMC — Evaporative Emission Purge Solenoid Valve Control Circuit High Voltage
- P0459 Hyundai — EVAP Emission System Purge Control Valve Circuit High
- P0459 Jeep — Evaporative Emission Purge Solenoid Control Circuit High Voltage
- P0459 KIA — EVAP Emission System Purge Valve Circuit High
- P0459 MINI — Evaporative Emission Purge Solenoid Control Circuit High Voltage
- P0459 Pontiac — Evaporative Emission Purge Solenoid Valve Control Circuit High Voltage
- P0459 RAM — Evaporative Emission Purge Solenoid Control Circuit High Voltage
- P0459 Saturn — Evaporative Emission Purge Solenoid Valve Control Circuit High Voltage
- P0459 Subaru — EVAP System Purge Control Valve Circuit High
- P0459 Volkswagen — EVAP System Purge Control Solenoid High
Frequently Asked Questions about P0459 Code
1. What are the common symptoms of OBDII code P0459?
The common symptoms of code P0459 include the check engine light being illuminated on the dashboard, decreased fuel efficiency, and potential issues with the vehicle's emissions system.
2. What can cause OBDII code P0459 to appear?
The most common cause of code P0459 is a malfunction in the evaporative emission purge solenoid control circuit, resulting in high voltage readings. Other potential causes include wiring issues, a faulty purge solenoid, or a problem with the PCM (powertrain control module).
3. How serious is OBDII code P0459?
While code P0459 may not cause immediate drivability issues, it is still important to address this problem promptly. Ignoring the code can lead to increased emissions, poor fuel economy, and potential damage to other emission control components.
4. Can I drive my vehicle with OBDII code P0459?
It is generally safe to drive your vehicle with code P0459, but it is recommended to have the issue diagnosed and repaired as soon as possible to prevent any long-term damage to the emissions system.
5. How can I diagnose OBDII code P0459?
Diagnosing code P0459 usually involves using an OBDII scanner to retrieve the code and then performing a thorough inspection of the evaporative emission system, including checking the purge solenoid, wiring, and connections for any faults.
6. How can I repair OBDII code P0459?
Repairing code P0459 typically involves replacing a faulty evaporative emission purge solenoid, repairing any damaged wiring or connections, or reprogramming the PCM if necessary. It is recommended to consult a professional mechanic for an accurate diagnosis and repair.
7. Can a DIY enthusiast fix OBDII code P0459?
While some DIY enthusiasts may be able to address code P0459 by replacing the purge solenoid or checking for wiring issues, it is often recommended to seek the help of a professional mechanic to ensure the problem is correctly diagnosed and repaired.
8. How much does it cost to fix OBDII code P0459?
The cost of fixing code P0459 can vary depending on the underlying cause of the issue, the labor rates in your area, and the cost of parts. It is advisable to obtain multiple quotes from different repair shops to find the best price for the repair.
9. Can OBDII code P0459 cause other problems if left unresolved?
If left unresolved, OBDII code P0459 can potentially lead to increased emissions, decreased fuel efficiency, and further damage to the vehicle's emission control system. It is best to address the issue promptly to prevent any additional problems.
10. How can I prevent OBDII code P0459 from reoccurring?
To prevent code P0459 from reoccurring, it is essential to perform regular maintenance on the evaporative emission system, including checking for leaks, ensuring proper sealing of the fuel cap, and addressing any issues promptly to avoid high voltage readings in the purge solenoid control circuit.
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