P1440 Toyota Code - Secondary Air Injection Vacuum Switching Valve Circuit Malfunction Bank 1
Quick Answer
The Engine Control Module (ECM) monitors the Secondary Air Injection Vacuum Switching Valve (VSV) Circuit. Common causes include Faulty Secondary Air Injection Vacuum Switching Valve (VSV), Secondary Air Injection VSV harness is open or shorted, Secondary Air Injection VSV 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
- P1440 Toyota indicates Secondary Air Injection Vacuum Switching Valve Circuit Malfunction Bank 1.
- Common causes
- Common causes include Faulty Secondary Air Injection Vacuum Switching Valve (VSV), Secondary Air Injection VSV harness is open or shorted, Secondary Air Injection VSV 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 P1440 Toyota Description
What are the Possible Causes of the DTC P1440 Toyota?
- Faulty Secondary Air Injection Vacuum Switching Valve (VSV)
- Secondary Air Injection VSV harness is open or shorted
- Secondary Air Injection VSV circuit poor electrical connection
How to Fix the DTC P1440 Toyota?
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 P1440 Toyota 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 P1440 Toyota code?
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Need Help with the Code?
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Frequently Asked Questions about P1440 Toyota Code
No Frequently Asked Questions about P1440 Toyota Code found.
Discuss the causes and fixes for P1440 Toyota OBDII Code
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For this code you usually just need to replace the faulty VSV or repair the wiring for it. This VSV actuates the Bank1 Secondary Air Switching Valve No.2 This VSV is sometimes the cause of and accompanied by a P1442 Valve No.2 Stuck Closed Code Bank1. P1440 is an electrical type fault our bypass kits at www.hewitt-tech.com cannot take care of by themselves.
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I am getting this code 1440 along with 1443 1613 and a four codes referencing to heater control circuits- we installed one of your bypass kits last year- could this mean the bypass kit has failed or something has happened to the wiring?
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With both a p1440 and p1443 i would first suspect wiring damage since the wires involved are in the same harness under the intake and the VSV failures are not very common, especially both at once. Four heater circuit codes are probably O2 sensor related. Could be wiring and or a fuse from one circuit being damaged. As stated these are not codes the bypass kit can take care of. We see lots of wiring damage in the winter from nesting rodents.
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