OBD Guide

P1433

Fuel Level Sensor 2 Circuit High Voltage

P1433 is an OBD-II diagnostic trouble code meaning: Fuel Level Sensor 2 Circuit High Voltage. Common causes: malfunction of fuel level sensor no. 2, short circuit in the sensor circuit to power. Estimated repair cost: $17–56.

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

Symptoms

  • Incorrect fuel level readings on the dashboard
  • Low fuel indicator flashes or does not work
  • Discrepancy between actual fuel level and readings
  • Problems with calculating remaining mileage
  • Possible errors related to the EVAP system

Causes

  • Malfunction of fuel level sensor No. 2
  • Short circuit in the sensor circuit to power
  • Broken or damaged wiring
  • Poor connection in the sensor connector
  • Control unit malfunction

How to Fix

  1. Check the resistance of fuel level sensor No. 2
  2. Inspect wiring and connectors for damage
  3. Check the voltage in the sensor circuit
  4. If necessary, replace the fuel level sensor
  5. Check and replace wiring harness if necessary

Related codes

Error P1433 by Vehicle Brand

FAQ

What does the P1433 code mean?

P1433 is an OBD-II diagnostic trouble code that indicates: Fuel Level Sensor 2 Circuit High Voltage

What causes a P1433 error code?

The most common causes of P1433 include: Malfunction of fuel level sensor No. 2; Short circuit in the sensor circuit to power; Broken or damaged wiring; Poor connection in the sensor connector.

How do I fix a P1433 diagnostic trouble code?

To fix P1433: Check the resistance of fuel level sensor No. 2. Inspect wiring and connectors for damage. Check the voltage in the sensor circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1433?

Yes, but get it checked soon

How much does it cost to fix P1433?

The estimated repair cost for P1433 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

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