AutoCodes – GMC – B0527 GMC

B0527 GMC Code - Right Turn Signal Circuit Low

Quick Answer

When the Body Control Module (BCM) receives a right turn signal ON command from the turn signal switch, the BCM will apply voltage to the right rear stop/turn lamp supply voltage circuit and right turn signal lamps supply voltage circuit. Common causes include Faulty Right Turn Signal Lamp Bulb, Right Turn Signal Lamp Bulb harness is open or shorted, Right Turn Signal Lamp Bulb circuit poor electrical connection. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means: B0527 GMC indicates Right Turn Signal Circuit Low.
Common causes: Common causes include Faulty Right Turn Signal Lamp Bulb, Right Turn Signal Lamp Bulb harness is open or shorted, Right Turn Signal Lamp Bulb circuit poor electrical connection.
Severity: Low - monitor the vehicle and repair when practical.
Can I drive?: The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 976

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Mar 11, 2021

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code B0527 GMC Description

When the Body Control Module (BCM) receives a right turn signal ON command from the turn signal switch, the BCM will apply voltage to the right rear stop/turn lamp supply voltage circuit and right turn signal lamps supply voltage circuit. The turn signal flasher is integrated within the BCM and will flash both circuits simultaneously. The turn signal indicator is also illuminated utilizing the right rear stop/turn lamp supply voltage circuit. The Diagnostic Trouble Code (DTC) is set when the right front and/or right rear turn signals will not operate or will remain always ON.

OBDII Code B0527 GMC - Right Turn Signal Circuit Low - AutoCodes.com — B0527 GMC Code - Right Turn Signal Circuit Low

What does this mean?

What are the Possible Causes of the DTC B0527 GMC?

Faulty Right Turn Signal Lamp Bulb
Right Turn Signal Lamp Bulb harness is open or shorted
Right Turn Signal Lamp Bulb circuit poor electrical connection
Faulty Instrument Panel Cluster (IPC)
Faulty Body Control Module (BCM)

How to Fix the DTC B0527 GMC?

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 B0527 GMC 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 B0527 GMC code?

Need more information on how to fix the B0527 GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B0527 GMC code diagnosed by a professional: Find a repair shop in your area

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 B0527 GMC Code

1. What are the common symptoms of OBDII code B0527 GMC (Right Turn Signal Circuit Low)?

- Common symptoms include a non-functioning right turn signal, fast blinking of the right turn signal, or a dashboard indicator for a faulty turn signal.

2. What are the possible causes of OBDII code B0527 GMC?

- Possible causes include a faulty right turn signal bulb, damaged wiring or connectors in the right turn signal circuit, or a defective turn signal switch.

3. How can I diagnose OBDII code B0527 GMC?

- You can diagnose this code by visually inspecting the right turn signal bulb, checking the wiring and connectors in the right turn signal circuit, and testing the turn signal switch for proper functionality.

4. Can a blown fuse cause OBDII code B0527 GMC?

- Yes, a blown fuse in the right turn signal circuit can cause this code to appear. Check the fuse and replace it if necessary.

5. What are some repair tips for fixing OBDII code B0527 GMC?

- Start by checking and replacing the right turn signal bulb if needed. Then inspect the wiring and connectors for any damage or corrosion. Finally, test the turn signal switch and replace it if found to be faulty.

6. Is it safe to continue driving with OBDII code B0527 GMC?

- It is not recommended to continue driving with this code active, as it can affect the proper functioning of your vehicle's turn signals and compromise safety on the road.

7. Can OBDII code B0527 GMC be reset without fixing the underlying issue?

- While you can clear the code using an OBDII scanner, it is important to address the root cause of the problem to prevent the code from reappearing.

8. How much does it typically cost to repair OBDII code B0527 GMC at a mechanic or dealership?

- The cost of repairing this code can vary depending on the specific issue. It is recommended to get a diagnostic assessment to determine the exact repair cost.

9. Are there any recalls or technical service bulletins related to OBDII code B0527 GMC?

- Check with your GMC dealership or visit the National Highway Traffic Safety Administration (NHTSA) website to see if there are any related recalls or technical service bulletins for this code.

10. Can a DIY enthusiast fix OBDII code B0527 GMC at home?

- Depending on your skill level and access to tools, you may be able to fix this code at home by following repair guides or tutorials specific to your vehicle model.