OBD Guide

P1433

Fuel Level Sensor 2 Circuit High Voltage

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