AutoCodesGeneric – B2658

B2658 Code - Outside Odor Detecting Sensor

Quick Answer

The Air Condition (A/C) Automatic Amplifier monitors the Outside Odor Detecting Sensor. Common causes include Faulty Outside Odor Detecting Sensor, Outside Odor Detecting Sensor harness is open or shorted, Outside Odor Detecting Sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
B2658 indicates Outside Odor Detecting Sensor.
Common causes
Common causes include Faulty Outside Odor Detecting Sensor, Outside Odor Detecting Sensor harness is open or shorted, Outside Odor Detecting Sensor circuit poor electrical connection.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 3,501
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jan 09, 2020
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Code B2658 Description

The Air Condition (A/C) Automatic Amplifier monitors the Outside Odor Detecting Sensor. The Diagnostic Trouble Code (DTC) code sets when the Outside Odor Detecting Sensor duty ratio 100%.
OBDII Code B2658 - Outside Odor Detecting Sensor - AutoCodes.com
B2658 Code - Outside Odor Detecting Sensor

What are the Possible Causes of the DTC B2658?

  • Faulty Outside Odor Detecting Sensor
  • Outside Odor Detecting Sensor harness is open or shorted
  • Outside Odor Detecting Sensor circuit poor electrical connection
  • Faulty Air Condition (A/C) Automatic Amplifier

How to Fix the DTC B2658?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B2658 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the B2658 code?

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Need Help with the Code?

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Information for Specific Makes

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B2658 Code

1. What does the OBDII code B2658 mean?

B2658 indicates an issue with the outside odor detecting sensor, which is part of the vehicle's HVAC system and is responsible for detecting external odors to adjust air circulation.

2. What are the common symptoms of code B2658?

Symptoms may include the HVAC system not switching between recirculated and fresh air modes, poor cabin air quality, or no response from the odor detection feature.

3. What causes the B2658 code to trigger?

Common causes include a faulty outside odor detecting sensor, damaged wiring or connectors, or an issue with the HVAC control module.

4. Can I drive with the B2658 code active?

Yes, the vehicle can still be driven, but the HVAC system may not function optimally, potentially leading to reduced cabin air quality.

5. How do I diagnose the B2658 code?

Diagnosis involves inspecting the outside odor detecting sensor, checking for damaged wiring or connectors, and using a scan tool to confirm sensor readings and related HVAC control module functions.

6. How do I fix the B2658 code?

Repairs may include replacing the outside odor detecting sensor, repairing or replacing damaged wiring, or reprogramming the HVAC control module if necessary.

7. Where is the outside odor detecting sensor located?

The sensor is typically located near the front of the vehicle, often within the HVAC intake system or close to the windshield cowl area.

8. How much does it cost to fix the B2658 code?

Repair costs can range from $100 to $300, depending on whether the sensor needs replacement or if additional wiring repairs are required.

9. Can a dirty air filter cause the B2658 code?

A dirty cabin air filter is unlikely to directly trigger this code but can contribute to HVAC system inefficiencies, so it’s worth checking and replacing if needed.

10. Do I need a professional to repair the B2658 code?

While basic inspections can be done at home, a professional mechanic with proper diagnostic tools is recommended for accurate diagnosis and repair.

Discuss the causes and fixes for B2658 OBDII Code

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