P2406
EVAP System Leak Detection Pump Sense Circuit High
P2406 is an OBD-II diagnostic trouble code meaning: EVAP System Leak Detection Pump Sense Circuit High. Common causes: evap pump sensor circuit short circuit, broken or damaged wires. Estimated repair cost: $17–67.
Symptoms
- Check Engine Light Is On
- Problems when passing a technical inspection
- Slight increase in fuel consumption
- Possible smell of gasoline (if there is a leak)
- The code may not be accompanied by noticeable symptoms
Causes
- EVAP pump sensor circuit short circuit
- Broken or damaged wires
- Leak detection pump malfunction
- Connector problems or contact corrosion
- Malfunction of the engine control unit (rare)
How to Fix
- Check the condition of the wiring harness and connectors in the EVAP pump circuit
- Measure the resistance and voltage in the sensor circuit
- Test the EVAP system leak detection pump
- If necessary, replace the pump or repair the wiring
- Clear diagnostic codes and check if the error returns
Related codes
Error P2406 by Vehicle Brand
FAQ
What does the P2406 code mean?
P2406 is an OBD-II diagnostic trouble code that indicates: EVAP System Leak Detection Pump Sense Circuit High
What causes a P2406 error code?
The most common causes of P2406 include: EVAP pump sensor circuit short circuit; Broken or damaged wires; Leak detection pump malfunction; Connector problems or contact corrosion.
How do I fix a P2406 diagnostic trouble code?
To fix P2406: Check the condition of the wiring harness and connectors in the EVAP pump circuit. Measure the resistance and voltage in the sensor circuit. Test the EVAP system leak detection pump. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P2406?
Yes, but get it checked soon
How much does it cost to fix P2406?
The estimated repair cost for P2406 is $17–67. Actual cost depends on your vehicle, location, and labor rates.
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