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B0649

B0649: Climate Control Temperature Sensor Fault

Fix Cost
$50 - $150
Parts & Labor
Difficulty
3/5
Moderate
1-2 hours
DIY Possible?
✅ Yes
Save money
Category
Body
System

📖 What Does B0649 Mean?

The B0649 code indicates a fault in the climate control temperature sensor, which is responsible for monitoring the temperature in the vehicle. This fault can cause the climate control system to malfunction, resulting in inaccurate temperature readings and potentially leading to reduced heating or cooling performance.
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Symptoms

  • • Inconsistent temperature readings
  • • poor heating or cooling performance
  • • climate control system malfunction
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Common Causes

  • • Faulty temperature sensor
  • • wiring issues
  • • sensor connector corrosion
Fix Guide
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Possible Solutions

1. Disconnect the battery to reset the climate control system. 2. Check the temperature sensor for any signs of damage or corrosion. 3. Clean or replace the temperature sensor as needed. 4. Check the wiring and connectors for any signs of damage or corrosion. 5. Replace any damaged wiring or connectors. 6. Reconnect the battery and test the climate control system.

❓ Common Questions About B0649

Can I drive with code B0649?

You can drive for a short time, but should address code B0649 soon to avoid worsening the problem or failing an emissions test.

How much does it cost to fix code B0649?

The estimated repair cost for code B0649 is between $50 and $150. This includes parts and labor. Prices may vary based on your vehicle's make and model.

Is code B0649 easy to fix myself?

This repair is considered moderate. It may require specialized tools or significant disassembly. If you are not an experienced mechanic, professional help is recommended.

Required Parts

Tools

Multimeter Torx screwdriver Wire stripper
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Need a Pro?

Complex codes like B0649 can be tricky. Don't risk it if you're unsure.

Quick Stats

Severity Medium
DIY Friendly Yes
Est. Time 1-2 hours
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Related Diagnostic Codes

Other codes that may appear with B0649

B0647 Sequential Code

B0647: Audio System Malfunction

Medium
B0648 Sequential Code

B0648: Airbag System Fault

High
B0650 Sequential Code

B0650: Door Locks Actuator Circuit Malfunction

Medium
B0651 Sequential Code

B0651: Power Window Circuit Malfunction

Medium

💡 Why These Codes Are Related:

  • • Similar Issues: Same root cause or component failure
  • • Related Problems: Often occur together due to system interactions
  • • Sequential Codes: Progressive failure stages or multiple sensors
  • • Same System: Components within the same automotive system