OBD Guide

B0333

Ambient Air Temperature Sensor Open

B0333 is an OBD-II diagnostic trouble code meaning: Ambient Air Temperature Sensor Open. Common causes: broken wires to the temperature sensor, ambient temperature sensor malfunction. Estimated repair cost: $11–56.

Severity
Low
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$11–56 (est.)

Symptoms

  • Incorrect temperature readings on the instrument panel
  • Climate control system malfunction
  • False readings on the multimedia system display

Causes

  • Broken wires to the temperature sensor
  • Ambient temperature sensor malfunction
  • Poor contact in the sensor connector
  • Short circuit in the sensor circuit

How to Fix

  1. Check the integrity of the wiring harness to the sensor
  2. Check the contacts in the sensor connector
  3. Replace ambient temperature sensor if necessary
  4. Clean or replace connector if there is corrosion.

Related codes

Error B0333 by Vehicle Brand

FAQ

What does the B0333 code mean?

B0333 is an OBD-II diagnostic trouble code that indicates: Ambient Air Temperature Sensor Open

What causes a B0333 error code?

The most common causes of B0333 include: Broken wires to the temperature sensor; Ambient temperature sensor malfunction; Poor contact in the sensor connector; Short circuit in the sensor circuit.

How do I fix a B0333 diagnostic trouble code?

To fix B0333: Check the integrity of the wiring harness to the sensor. Check the contacts in the sensor connector. Replace ambient temperature sensor if necessary. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B0333?

Yes, but get it checked soon

How much does it cost to fix B0333?

The estimated repair cost for B0333 is $11–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat