OBD Guide

B2658

Outside Odor Detecting Sensor

B2658 is an OBD-II diagnostic trouble code meaning: Outside Odor Detecting Sensor. Common causes: malfunction of the external odor sensor, open or shorted wiring harness. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • False alarms of the air recirculation system
  • Inadequate operation of climate control
  • Odors from outside penetrate into the cabin

Causes

  • Malfunction of the external odor sensor
  • Open or shorted wiring harness
  • Oxidation of contacts
  • Moisture or dirt on the sensor
  • Software failure of the climate control unit

How to Fix

  1. Check the integrity of the sensor and its connector
  2. Clean the sensor from dirt (if possible)
  3. Check the power circuit and ground of the sensor
  4. Replace sensor if necessary
  5. Reset the error and test the system

Related codes

FAQ

What does the B2658 code mean?

B2658 is an OBD-II diagnostic trouble code that indicates: Outside Odor Detecting Sensor

What causes a B2658 error code?

The most common causes of B2658 include: Malfunction of the external odor sensor; Open or shorted wiring harness; Oxidation of contacts; Moisture or dirt on the sensor.

How do I fix a B2658 diagnostic trouble code?

To fix B2658: Check the integrity of the sensor and its connector. Clean the sensor from dirt (if possible). Check the power circuit and ground of the sensor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2658?

Limited driving only, diagnose soon

How much does it cost to fix B2658?

The estimated repair cost for B2658 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat