P2403
EVAP System Leak Detection Pump Sense Circuit/Open
P2403 is an OBD-II diagnostic trouble code meaning: EVAP System Leak Detection Pump Sense Circuit/Open. Common causes: open or short circuit in the ldp pump sensor circuit, faulty leak detection pump sensor. Estimated repair cost: $17–56.
Symptoms
- Check Engine Light Is On
- Possible problems starting the engine
- Increased fuel consumption
- The smell of gasoline in or around the car
- Unstable engine idling
Causes
- Open or short circuit in the LDP pump sensor circuit
- Faulty leak detection pump sensor
- Damaged EVAP system LDP pump
- Problems with the wiring harness or connectors
- Engine control unit malfunction
How to Fix
- Check the continuity of the LDP pump sensor circuit
- Check the resistance of the LDP pump sensor
- Inspect connectors and wiring harness for damage
- If necessary, replace the LDP pump or sensor
- Check and replace fuses if necessary
Related codes
Error P2403 by Vehicle Brand
FAQ
What does the P2403 code mean?
P2403 is an OBD-II diagnostic trouble code that indicates: EVAP System Leak Detection Pump Sense Circuit/Open
What causes a P2403 error code?
The most common causes of P2403 include: Open or short circuit in the LDP pump sensor circuit; Faulty leak detection pump sensor; Damaged EVAP system LDP pump; Problems with the wiring harness or connectors.
How do I fix a P2403 diagnostic trouble code?
To fix P2403: Check the continuity of the LDP pump sensor circuit. Check the resistance of the LDP pump sensor. Inspect connectors and wiring harness for damage. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P2403?
Yes, but get it checked soon
How much does it cost to fix P2403?
The estimated repair cost for P2403 is $17–56. Actual cost depends on your vehicle, location, and labor rates.
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