AutoCodes – Generic – B2175

B2175 Code - A/C Request Signal Circuit Short To Ground

Quick Answer

The Body Control Module (BCM) monitors the A/C Request Signal Circuit. Common causes include Faulty A/C Request Switch, A/C Request Switch harness is open or shorted, A/C Request Switch 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: B2175 indicates A/C Request Signal Circuit Short To Ground.
Common causes: Common causes include Faulty A/C Request Switch, A/C Request Switch harness is open or shorted, A/C Request Switch 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.

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Code Popularity 18,541

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Sep 22, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2175 Description

The Body Control Module (BCM) monitors the A/C Request Signal Circuit. The BCM sets the OBDII code when the A/C Request Signal Circuit is not to factory specifications.

OBDII Code B2175 - A/C Request Signal Circuit Short To Ground - AutoCodes.com — B2175 Code - A/C Request Signal Circuit Short To Ground

What does this mean?

What are the Possible Causes of the DTC B2175?

Faulty A/C Request Switch
A/C Request Switch harness is open or shorted
A/C Request Switch circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B2175?

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 B2175 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 B2175 code?

Need more information on how to fix the B2175 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B2175 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B2175 Acura — Driver Side Power Window Motor Pulse 'A' Error
B2175 Honda — Driver Side Power Window Motor Pulse 'A' Error

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 B2175 Code

1. What are the common symptoms of OBDII code B2175 (A/C Request Signal Circuit Short To Ground)?

- Common symptoms include the air conditioning system not functioning properly, failure to cool the cabin, and possibly a warning light on the dashboard.

2. What are the possible causes of OBDII code B2175?

- Possible causes include a short to ground in the A/C request signal circuit, damaged wiring or connectors, a faulty A/C control module, or a malfunctioning climate control system.

3. How can I diagnose OBDII code B2175?

- Diagnosis typically involves using a scan tool to read the code, inspecting the A/C request signal circuit for shorts or damage, checking wiring and connectors for issues, and testing the A/C control module.

4. Can I still drive my vehicle with OBDII code B2175 present?

- It is not recommended to drive the vehicle with this code present, as it can affect the proper operation of the air conditioning system and may lead to further issues if left unresolved.

5. How can I repair OBDII code B2175?

- Repairing this code involves locating and fixing the short to ground in the A/C request signal circuit, repairing or replacing damaged wiring or connectors, and addressing any issues with the A/C control module.

6. Will resetting the OBDII code B2175 make it go away permanently?

- Resetting the code may temporarily clear the warning light, but if the underlying issue causing the code is not fixed, it is likely to return and require further attention.

7. Is it safe to try DIY repairs for OBDII code B2175?

- DIY repairs are possible if you have the necessary tools and experience working on automotive electrical systems. However, if you are unsure or uncomfortable with the process, it is recommended to seek professional help.

8. How long does it typically take to repair OBDII code B2175?

- The repair time can vary depending on the exact cause of the issue and the complexity of the repair. It could range from a quick fix to a more involved process requiring several hours.

9. Can extreme weather conditions contribute to triggering OBDII code B2175?

- Extreme weather conditions, such as severe heat or cold, can potentially exacerbate existing issues with the A/C system and contribute to triggering this code.

10. Are there any preventative measures to avoid OBDII code B2175 in the future?

- Regular maintenance of the air conditioning system, checking for any signs of wear or damage in the wiring, and addressing any issues promptly can help prevent the occurrence of this code in the future.