OBD Guide

B0179

Output Air Temperature Sensor 2 Circuit Range/Performance

B0179 is an OBD-II diagnostic trouble code meaning: Output Air Temperature Sensor 2 Circuit Range/Performance. Common causes: malfunction of outlet air temperature sensor 2, open or short circuit in wiring harness. Estimated repair cost: $6–33.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$6–33 (est.)

Symptoms

  • Incorrect operation of the climate control system
  • Uneven heating/cooling of air in the cabin
  • Check Engine light comes on

Causes

  • Malfunction of outlet air temperature sensor 2
  • Open or short circuit in wiring harness
  • Poor contact in the sensor connector
  • Problems with the climate control unit

How to Fix

  1. Check the integrity of the wiring harness to the sensor
  2. Check connections and contacts in the sensor connector
  3. Test the sensor with a multimeter
  4. Replace sensor if necessary

Related codes

Error B0179 by Vehicle Brand

FAQ

What does the B0179 code mean?

B0179 is an OBD-II diagnostic trouble code that indicates: Output Air Temperature Sensor 2 Circuit Range/Performance

What causes a B0179 error code?

The most common causes of B0179 include: Malfunction of outlet air temperature sensor 2; Open or short circuit in wiring harness; Poor contact in the sensor connector; Problems with the climate control unit.

How do I fix a B0179 diagnostic trouble code?

To fix B0179: Check the integrity of the wiring harness to the sensor. Check connections and contacts in the sensor connector. Test the sensor with a multimeter. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B0179?

Limited driving only, diagnose soon

How much does it cost to fix B0179?

The estimated repair cost for B0179 is $6–33. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat