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Diagnostic trouble code

P2440

P2440 Fault Code

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Car Codes diagnostic trouble code

P2440Diagnostic priority

AIR System Switching Valve Stuck Open Bank 1Diagnostic contextPotentially applicable to OBD-II-compliant vehicles; confirm against vehicle VIN, model year and module.Vehicle applicabilityApplicability varies by vehicle, powertrain, model year and control module.

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Code interpretation

What P2440 means

This code indicates AIR System Switching Valve Stuck Open Bank 1 Its precise meaning depends on the reporting control module, complete failure-type suffix, model year, powertrain and software level.

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Driver experience

Symptoms you may notice

A stored diagnostic trouble code or related system symptom.

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Test, do not guess

Possible causes

Confirm the reporting module, circuit condition, power supply, wiring, component performance and software status.

Evidence-led checks

Recommended diagnostic route

Save the complete scan, confirm the full code and reporting module, then test using model-specific multi-brand technical information.

  1. Capture the evidenceSave the complete all-module scan, code suffixes and freeze-frame data.
  2. Prove the basicsTest battery condition, system voltage, power and grounds.
  3. Identify the reporterConfirm the module that logged the code and check circuit integrity.
  4. Compare live dataReview commanded and actual values under the conditions that set the code.
  5. Test before replacingUse model-specific wiring diagrams, pin tests and technical information.
  6. Verify the repairClear the code only after recording evidence, then confirm it does not return.

Vehicle fitment

Vehicle applicability

Toyota Land Cruiser, Audi A6 Saloon, Audi Q7, Audi S5 Saloon, Audi Q5 Sportback, Volkswagen Passat, Volkswagen Golf Estate, Volkswagen Tiguan

Before clearing

Can the code be cleared?

Clearing a code without fixing the cause removes useful evidence and may only switch the warning off temporarily. Save the full scan first; a permanent or repeatedly returning code needs testing.

A DTC is evidence, not a parts order.

Confirm the suffix, reporting module, model, year, engine and live data before replacing a component.

Verified public evidence

Manufacturer and model coverage

149 public manufacturer records match this search. These records support applicability research but do not replace VIN-specific workshop information.

P2440Audi A6 Saloon
A6 · 2011 · Powertrain

The MIL is on. DTCs P2440(00) and/or P2442(00) are stored in the ECM. One of the combi valves is defective or the vacuum solenoid is defective.

Source
P2440Audi A6 Saloon
A6 · 2012 · Powertrain

The MIL is on. DTCs P2440(00) and/or P2442(00) are stored in the ECM. One of the combi valves is defective or the vacuum solenoid is defective.

Source
P2440Audi A6 Saloon
A6 · 2013 · Powertrain

The MIL is on. DTCs P2440(00) and/or P2442(00) are stored in the ECM. One of the combi valves is defective or the vacuum solenoid is defective.

Source
P2440Audi A6 Saloon
A6 · 2014 · Powertrain

The MIL is on. DTCs P2440(00) and/or P2442(00) are stored in the ECM. One of the combi valves is defective or the vacuum solenoid is defective.

Source
P2440Audi Q5
Q5 · 2011 · Powertrain

The MIL is on. DTCs P2440(00) and/or P2442(00) are stored in the ECM. One of the combi valves is defective or the vacuum solenoid is defective.

Source
P2440Audi Q5 Sportback
Q5 · 2011 · Powertrain

The MIL is on. DTCs P2440(00) and/or P2442(00) are stored in the ECM. One of the combi valves is defective or the vacuum solenoid is defective.

Source
P2440Audi Q5 Sportback
Q5 · 2012 · Powertrain

The MIL is on. DTCs P2440(00) and/or P2442(00) are stored in the ECM. One of the combi valves is defective or the vacuum solenoid is defective.

Source
P2440Audi Q5 Sportback
Q5 · 2013 · Powertrain

The MIL is on. DTCs P2440(00) and/or P2442(00) are stored in the ECM. One of the combi valves is defective or the vacuum solenoid is defective.

Source
P2440Audi Q5 Sportback
Q5 · 2014 · Powertrain

The MIL is on. DTCs P2440(00) and/or P2442(00) are stored in the ECM. One of the combi valves is defective or the vacuum solenoid is defective.

Source
P2440Audi Q7
Q7 · 2011 · Powertrain

The MIL is on. DTCs P2440(00) and/or P2442(00) are stored in the ECM. One of the combi valves is defective or the vacuum solenoid is defective.

Source
P2440Audi Q7
Q7 · 2012 · Powertrain

The MIL is on. DTCs P2440(00) and/or P2442(00) are stored in the ECM. One of the combi valves is defective or the vacuum solenoid is defective.

Source
P2440Audi Q7
Q7 · 2013 · Powertrain

The MIL is on. DTCs P2440(00) and/or P2442(00) are stored in the ECM. One of the combi valves is defective or the vacuum solenoid is defective.

Source
P2440Audi Q7
Q7 · 2014 · Powertrain

The MIL is on. DTCs P2440(00) and/or P2442(00) are stored in the ECM. One of the combi valves is defective or the vacuum solenoid is defective.

Source
P2440Audi S5 Saloon
S5 · 2011 · Powertrain

The MIL is on. DTCs P2440(00) and/or P2442(00) are stored in the ECM. One of the combi valves is defective or the vacuum solenoid is defective.

Source
P2440Audi S5 Saloon
S5 · 2012 · Powertrain

The MIL is on. DTCs P2440(00) and/or P2442(00) are stored in the ECM. One of the combi valves is defective or the vacuum solenoid is defective.

Source
P2440Audi S5 Saloon
S5 · 2013 · Powertrain

The MIL is on. DTCs P2440(00) and/or P2442(00) are stored in the ECM. One of the combi valves is defective or the vacuum solenoid is defective.

Source
P2440Audi S5 Saloon
S5 · 2014 · Powertrain

The MIL is on. DTCs P2440(00) and/or P2442(00) are stored in the ECM. One of the combi valves is defective or the vacuum solenoid is defective.

Source
P2440Toyota Land Cruiser
LAND CRUISER · 2006 · Powertrain

…1440/P1443 ? Secondary Air Injection System Control Valve Circuit Bank 1 / Bank 2 ? P1441/P1444 ? Secondary Air Injection System Switching Valve No. 2 Bank 1 / Bank 2…

Source
P2440Toyota Land Cruiser
LAND CRUISER · 2007 · Powertrain

…1440/P1443 ? Secondary Air Injection System Control Valve Circuit Bank 1 / Bank 2 ? P1441/P1444 ? Secondary Air Injection System Switching Valve No. 2 Bank 1 / Bank 2…

Source
P2440Toyota Land Cruiser
LAND CRUISER · 2006 · Powertrain

…440/P1443 - Secondary Air Injection System Control Valve Circuit Bank 1 I Bank 2 P1441/P1444 - Secondary Air Injection System Switching Valve No. 2 Bank 1 I Bank 2 Stuck…

Source