OBD Guide

P2412

Fuel Cap Sensor/Switch Circuit Intermittent/Erratic

P2412 is an OBD-II diagnostic trouble code meaning: Fuel Cap Sensor/Switch Circuit Intermittent/Erratic. Common causes: fuel cap sensor malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Check Engine Light Is On
  • Possible problems starting the engine
  • Increased fuel consumption
  • The smell of gasoline in or around the car

Causes

  • Fuel cap sensor malfunction
  • Open or short circuit in the sensor circuit
  • Poor contact in wiring connectors
  • Damage to the fuel tank cap
  • Problems with the engine control unit (rare)

How to Fix

  1. Check the condition of the fuel tank cap
  2. Inspect the sensor wiring and connectors
  3. Check the sensor resistance with a multimeter
  4. Replace the fuel cap sensor if necessary
  5. Reset the error code and check for its reappearance

Related codes

Error P2412 by Vehicle Brand

FAQ

What does the P2412 code mean?

P2412 is an OBD-II diagnostic trouble code that indicates: Fuel Cap Sensor/Switch Circuit Intermittent/Erratic

What causes a P2412 error code?

The most common causes of P2412 include: Fuel cap sensor malfunction; Open or short circuit in the sensor circuit; Poor contact in wiring connectors; Damage to the fuel tank cap.

How do I fix a P2412 diagnostic trouble code?

To fix P2412: Check the condition of the fuel tank cap. Inspect the sensor wiring and connectors. Check the sensor resistance with a multimeter. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2412?

Yes, but get it checked soon

How much does it cost to fix P2412?

The estimated repair cost for P2412 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat