P0445 2003 Nissan Altima Sedan Code - EVAP Canister Purge Volume Control Solenoid Valve Circuit Shorted
Quick Answer
The Evaporative Emission System (EVAP) Canister Purge Volume Control Solenoid Valve controls flow rate of fuel vapor from the EVAP canister. Common causes include Faulty Evaporative Emission (EVAP) Purge Solenoid Control, Evaporative Emission (EVAP) Purge Solenoid Control harness is open or shorted, Evaporative Emission (EVAP) Purge Solenoid Control circuit poor electrical connection. 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
- P0445 2003 Nissan Altima Sedan indicates EVAP Canister Purge Volume Control Solenoid Valve Circuit Shorted.
- Common causes
- Common causes include Faulty Evaporative Emission (EVAP) Purge Solenoid Control, Evaporative Emission (EVAP) Purge Solenoid Control harness is open or shorted, Evaporative Emission (EVAP) Purge Solenoid Control circuit poor electrical connection.
- 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.
Code P0445 2003 Nissan Altima Sedan Description
The EVAP canister purge volume control solenoid valve uses a ON/OFF duty to control the flow rate of fuel vapor from the EVAP canister. The EVAP canister purge volume control solenoid valve is moved by ON/OFF pulses from the ECM. The longer the ON pulse, the greater the amount of fuel vapor that will flow through the valve.
What are the Possible Causes of the DTC P0445 2003 Nissan Altima Sedan?
- Faulty Evaporative Emission (EVAP) Purge Solenoid Control
- Evaporative Emission (EVAP) Purge Solenoid Control harness is open or shorted
- Evaporative Emission (EVAP) Purge Solenoid Control circuit poor electrical connection
How to Fix the DTC P0445 2003 Nissan Altima Sedan?
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.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0445 2003 Nissan Altima Sedan 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.
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Frequently Asked Questions about P0445 2003 Nissan Altima Sedan Code
1. What does the OBDII code P0445 mean on a 2003 Nissan Altima?
P0445 indicates that the EVAP (Evaporative Emission Control System) Canister Purge Volume Control Solenoid Valve Circuit has a short, causing it not to function properly.
2. What are the symptoms of the P0445 code in a 2003 Nissan Altima?
Common symptoms include the Check Engine Light turning on, increased fuel odor, reduced fuel efficiency, and potential difficulty starting the engine.
3. What causes the P0445 code on a 2003 Nissan Altima?
Potential causes include a shorted or damaged EVAP purge solenoid, faulty wiring or connectors in the circuit, or a defective Engine Control Module (ECM).
4. Can I drive my 2003 Nissan Altima with the P0445 code?
While the car may still run, it is not recommended to drive for extended periods, as it can lead to increased emissions and potential long-term damage to the EVAP system.
5. How do I diagnose the P0445 code on a 2003 Nissan Altima?
Start by inspecting the EVAP purge solenoid, wiring, and connectors for damage or corrosion. Use a multimeter to check for continuity and test the solenoid's function.
6. How is the P0445 code typically repaired on a 2003 Nissan Altima?
Repairs may include replacing the EVAP purge solenoid, repairing or replacing damaged wiring, cleaning corroded connectors, or, in rare cases, reprogramming the ECM.
7. How much does it cost to fix the P0445 code on a 2003 Nissan Altima?
Replacing the EVAP purge solenoid typically costs $100–$300, including parts and labor. Wiring repairs or other issues may vary in cost depending on the extent of the damage.
8. Can a loose gas cap cause the P0445 code on a 2003 Nissan Altima?
No, a loose gas cap usually triggers a different EVAP-related code, such as P0455 or P0442. P0445 specifically relates to a short in the purge solenoid circuit.
9. What tools are needed to fix the P0445 code on a 2003 Nissan Altima?
You'll need an OBDII scanner, multimeter, and basic hand tools like pliers and screwdrivers to inspect and repair the EVAP system components.
10. Is the P0445 code covered under warranty for a 2003 Nissan Altima?
If the vehicle is still under an extended emissions warranty, repairs related to the EVAP system may be covered. Check with your dealer for details.
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