OBD Guide

P2066

Fuel Level Sensor B Performance

P2066 is an OBD-II diagnostic trouble code meaning: Fuel Level Sensor B Performance. Common causes: fuel level sensor b 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

  • Incorrect fuel level readings on the dashboard
  • Fuel gauge fluctuates or does not move
  • The low fuel indicator comes on when the tank is full
  • Fuel level error on display
  • Inability to determine the exact fuel level

Causes

  • Fuel level sensor B malfunction
  • Open or short circuit in the sensor circuit
  • Corrosion or poor contact in connectors
  • Problems with the fuel pump or module
  • ECU malfunction

How to Fix

  1. Check the continuity of the fuel level sensor B circuit
  2. Inspect connectors and contacts for corrosion or damage
  3. Check resistance of fuel level sensor B
  4. Replace fuel level sensor B if necessary
  5. Check and, if necessary, replace the fuel pump or module

Related codes

Error P2066 by Vehicle Brand

FAQ

What does the P2066 code mean?

P2066 is an OBD-II diagnostic trouble code that indicates: Fuel Level Sensor B Performance

What causes a P2066 error code?

The most common causes of P2066 include: Fuel level sensor B malfunction; Open or short circuit in the sensor circuit; Corrosion or poor contact in connectors; Problems with the fuel pump or module.

How do I fix a P2066 diagnostic trouble code?

To fix P2066: Check the continuity of the fuel level sensor B circuit. Inspect connectors and contacts for corrosion or damage. Check resistance of fuel level sensor B. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2066?

Yes, but get it checked soon

How much does it cost to fix P2066?

The estimated repair cost for P2066 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat