B1849
Climate Control Temperature Differential Circuit Failure
B1849 is an OBD-II diagnostic trouble code meaning: Climate Control Temperature Differential Circuit Failure. Common causes: malfunction of the interior temperature sensor, open or shorted wiring harness. Estimated repair cost: $56–167.
Symptoms
- Incorrect operation of climate control
- Discrepancy between the set and actual temperature in the cabin
- Automatic climate control system shutdown
Causes
- Malfunction of the interior temperature sensor
- Open or shorted wiring harness
- Problems with the climate control unit
- Poor contact in sensor connectors
How to Fix
- Check the temperature sensors in the cabin
- Check the integrity of the wiring harness and connectors
- Scan the climate control module for additional errors
- If necessary, replace faulty components
Related codes
FAQ
What does the B1849 code mean?
B1849 is an OBD-II diagnostic trouble code that indicates: Climate Control Temperature Differential Circuit Failure
What causes a B1849 error code?
The most common causes of B1849 include: Malfunction of the interior temperature sensor; Open or shorted wiring harness; Problems with the climate control unit; Poor contact in sensor connectors.
How do I fix a B1849 diagnostic trouble code?
To fix B1849: Check the temperature sensors in the cabin. Check the integrity of the wiring harness and connectors. Scan the climate control module for additional errors. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B1849?
Limited driving only, diagnose soon
How much does it cost to fix B1849?
The estimated repair cost for B1849 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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