AutoCodes – Generic – B1855

B1855 Code - Climate Control Air Temperature Internal Sensor Motor Circuit Short To Battery

Quick Answer

The Body Control Module (BCM) monitors the Climate Control Air Temperature Internal Sensor Motor. Common causes include Faulty Climate Control Air Temperature Internal Sensor Motor, Climate Control Air Temperature Internal Sensor Motor harness is open or shorted, Climate Control Air Temperature Internal Sensor Motor 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
B1855 indicates Climate Control Air Temperature Internal Sensor Motor Circuit Short To Battery.
Common causes
Common causes include Faulty Climate Control Air Temperature Internal Sensor Motor, Climate Control Air Temperature Internal Sensor Motor harness is open or shorted, Climate Control Air Temperature Internal Sensor Motor 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 5,309
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jul 07, 2019
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Code B1855 Description

The Body Control Module (BCM) monitors the Climate Control Air Temperature Internal Sensor Motor. The BCM sets the OBDII code when the Climate Control Air Temperature Internal Sensor Motor is not to factory specifications.
OBDII Code B1855 - Climate Control Air Temperature Internal Sensor Motor Circuit Short To Battery - AutoCodes.com
B1855 Code - Climate Control Air Temperature Internal Sensor Motor Circuit Short To Battery

What are the Possible Causes of the DTC B1855?

  • Faulty Climate Control Air Temperature Internal Sensor Motor
  • Climate Control Air Temperature Internal Sensor Motor harness is open or shorted
  • Climate Control Air Temperature Internal Sensor Motor circuit poor electrical connection
  • Faulty Body Control Module (BCM)

How to Fix the DTC B1855?

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 B1855 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 B1855 code?

Need more information on how to fix the B1855 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1855 code diagnosed by a professional: Find a repair shop in your area

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 B1855 Code

1. What are the common symptoms of OBDII code B1855?

The common symptoms of OBDII code B1855 include issues with the climate control system, inaccurate temperature readings, and possible malfunctions in the air temperature control.

2. What causes the OBDII code B1855 to trigger?

The OBDII code B1855 "Climate Control Air Temperature Internal Sensor Motor Circuit Short To Battery" is typically triggered by a short circuit in the internal sensor motor circuit of the climate control system.

3. How serious is the OBDII code B1855?

While the OBDII code B1855 itself may not directly affect the drivability of the vehicle, it can lead to issues with the climate control system, affecting comfort and convenience while driving.

4. Can I continue driving with the OBDII code B1855 present?

It is generally not recommended to continue driving with the OBDII code B1855 present, as it can lead to further malfunctions in the climate control system and potentially impact the overall functionality of the vehicle.

5. How can I diagnose the OBDII code B1855?

Diagnosing the OBDII code B1855 requires a scan tool to retrieve the code, followed by checking the internal sensor motor circuit for any shorts to the battery.

6. How can I repair the OBDII code B1855?

To repair the OBDII code B1855, you may need to inspect and repair any short circuits in the internal sensor motor circuit, replace the sensor if necessary, and reset the fault codes.

7. Is the OBDII code B1855 easy to fix on my own?

Fixing the OBDII code B1855 may require some knowledge of automotive electrical systems and climate control components. If you are comfortable working with these systems, you may be able to fix it on your own.

8. Can weather conditions affect the OBDII code B1855?

Extreme weather conditions, such as high temperatures or humidity, can potentially exacerbate issues related to the internal sensor motor circuit short to battery, leading to the triggering of the OBDII code B1855.

9. How much does it cost to repair the OBDII code B1855 at a repair shop?

The cost of repairing the OBDII code B1855 at a repair shop can vary depending on the labor rates, parts needed for replacement, and any additional diagnostics required. It is recommended to get a few quotes from different shops.

10. Will resetting the OBDII code B1855 make it go away permanently?

Resetting the OBDII code B1855 may clear the code temporarily, but if the underlying issue with the internal sensor motor circuit short to battery is not addressed, the code is likely to return.

Discuss the causes and fixes for B1855 OBDII Code

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