P2420 2007 Toyota Highlander Code - Evaporative Emission System Switching Valve Control Circuit High
Quick Answer
When 5 hours have elapsed after the ignition switch is turned OFF, the electric vacuum pump creates negative pressure (vacuum) in Evaporative Emission (EVAP) system. Common causes include Faulty Vacuum Pump Module, Vacuum Pump Module harness is open or shorted, Vacuum 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 2007 Toyota Highlander indicates Evaporative Emission System Switching Valve Control Circuit High.
- Common causes
- Common causes include Faulty Vacuum Pump Module, Vacuum Pump Module harness is open or shorted, Vacuum 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 2007 Toyota Highlander Description
What are the Possible Causes of the DTC P2420 2007 Toyota Highlander?
- Faulty Vacuum Pump Module
- Vacuum Pump Module harness is open or shorted
- Vacuum Pump Module circuit poor electrical connection.
- Faulty Engine Control Module (ECM)
How to Fix the DTC P2420 2007 Toyota Highlander?
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 2007 Toyota Highlander 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 2007 Toyota Highlander code?
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Frequently Asked Questions about P2420 2007 Toyota Highlander Code
1. What are the common symptoms of OBDII code P2420 in a 2007 Toyota Highlander?
- Common symptoms include the check engine light illuminating, poor fuel efficiency, rough idling, and potential difficulty starting the vehicle.
2. What causes the OBDII code P2420 in a 2007 Toyota Highlander?
- The code P2420 typically indicates a malfunction in the evaporative emission system switching valve control circuit, which can be caused by a faulty valve, wiring issues, or a problem with the ECM.
3. How can I diagnose the OBDII code P2420 in my 2007 Toyota Highlander?
- Diagnosing the code involves using an OBDII scanner to retrieve the specific fault code, inspecting the switching valve and associated wiring for damage, and testing the valve's functionality.
4. Can I continue driving my 2007 Toyota Highlander with the OBDII code P2420?
- It is not recommended to ignore the code and continue driving, as it can lead to further damage to the vehicle's emission system and potentially impact performance.
5. How do I repair the OBDII code P2420 in my 2007 Toyota Highlander?
- Repairing the code may involve replacing the evaporative emission system switching valve, repairing any damaged wiring, or reprogramming the ECM to address the issue.
6. Are there any DIY tips for fixing the OBDII code P2420 in a 2007 Toyota Highlander?
- While some basic diagnostics can be done by DIY enthusiasts, it is recommended to seek professional help for accurately diagnosing and repairing the issue to avoid any further complications.
7. Can a faulty gas cap cause the OBDII code P2420 in a 2007 Toyota Highlander?
- While a faulty gas cap can trigger a similar code (P0442), it is less likely to be the cause of P2420, which is more related to the switching valve control circuit.
8. Will resetting the check engine light clear the OBDII code P2420 in a 2007 Toyota Highlander?
- Resetting the check engine light may temporarily clear the code, but if the underlying issue causing P2420 is not addressed, the code is likely to reappear.
9. Is the OBDII code P2420 related to emissions testing requirements in my 2007 Toyota Highlander?
- Yes, addressing the code P2420 is important not only for the vehicle's performance but also to ensure it meets emissions standards required for passing emissions testing.
10. How much does it typically cost to repair the OBDII code P2420 in a 2007 Toyota Highlander?
- The cost of repairing the code can vary depending on the exact cause of the issue, but it may range from $100 to $500 or more, including parts and labor.
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