P2420 Scion Code - Evaporative Emission System Switching Valve Control Circuit High
Quick Answer
5 hours after the ignition switch is turned off, the leak detection pump creates negative pressure (vacuum) in the Evaporative Emission (EVAP) system. Common causes include Faulty Canister Pump Module, Canister Pump Module harness is open or shorted, Canister Pump Module circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P2420 Scion indicates Evaporative Emission System Switching Valve Control Circuit High.
- Common causes
- Common causes include Faulty Canister Pump Module, Canister Pump Module harness is open or shorted, Canister Pump Module circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P2420 Scion Description
What are the Possible Causes of the DTC P2420 Scion?
- Faulty Canister Pump Module
- Canister Pump Module harness is open or shorted
- Canister Pump Module circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P2420 Scion?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P2420 Scion code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the P2420 Scion code?
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Information for Specific Scion Models
- P2420 2005 Scion xB — Evaporative Emission System Switching Valve Control Circuit High
- P2420 2006 Scion xB — Evaporative Emission System Switching Valve Control Circuit High
- P2420 2007 Scion xB — Evaporative Emission System Switching Valve Control Circuit High
Frequently Asked Questions about P2420 Scion Code
1. What are the common symptoms of OBDII code P2420 in a Scion?
The common symptoms of code P2420 include the Check Engine Light illuminating on the dashboard, decreased fuel efficiency, and potentially rough idling or stalling.
2. What does the OBDII code P2420 in a Scion indicate?
Code P2420 indicates a problem with the evaporative emission system switching valve control circuit being detected as high by the vehicle's onboard diagnostics system.
3. What are the possible causes of OBDII code P2420 in a Scion?
Possible causes of code P2420 include a faulty evaporative emission system switching valve, damaged wiring or connectors in the control circuit, or a problem with the engine control module (ECM).
4. How can I diagnose the OBDII code P2420 in my Scion?
Diagnosing code P2420 typically involves using an OBDII scanner to retrieve the code, inspecting the evaporative emission system components, checking the wiring and connectors for any damage, and testing the switching valve control circuit.
5. Can I continue driving my Scion with OBDII code P2420?
It is not recommended to continue driving your Scion with code P2420, as unresolved issues with the evaporative emission system can lead to increased emissions, poor fuel economy, and potential damage to other engine components.
6. How can I repair OBDII code P2420 in my Scion?
Repairing code P2420 may involve replacing the faulty evaporative emission system switching valve, repairing or replacing damaged wiring or connectors, or resetting the engine control module after addressing the underlying issue.
7. Will resetting the Check Engine Light resolve OBDII code P2420 in my Scion?
Resetting the Check Engine Light may temporarily turn off the indicator, but it will not fix the underlying issue causing code P2420. It is important to diagnose and repair the problem to prevent further issues.
8. How much does it typically cost to repair OBDII code P2420 in a Scion?
The cost of repairing code P2420 can vary depending on the specific cause of the issue, the labor rates in your area, and whether any parts need to be replaced. It is recommended to consult a mechanic for a more accurate estimate.
9. Can a DIY enthusiast fix OBDII code P2420 in a Scion?
Depending on your automotive repair skills and access to tools, a DIY enthusiast may be able to address code P2420 by following diagnostic procedures and repair steps outlined in the vehicle's service manual. However, professional help is recommended if unsure.
10. How can I prevent OBDII code P2420 from appearing in my Scion in the future?
To prevent code P2420 from reoccurring, regular maintenance of the evaporative emission system, such as checking for leaks, ensuring proper gas cap closure, and promptly addressing any warning signs, can help maintain the system's functionality.
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