AutoCodes – GMC – B0528 GMC

B0528 GMC Code - Right Turn Signal Circuit High

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: B0528 GMC indicates Right Turn Signal Circuit High.
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 1,306

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 Nov 18, 2024

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 B0528 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 B0528 GMC - Right Turn Signal Circuit High - AutoCodes.com — B0528 GMC Code - Right Turn Signal Circuit High

What does this mean?

What are the Possible Causes of the DTC B0528 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 B0528 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 B0528 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 B0528 GMC code?

Need more information on how to fix the B0528 GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B0528 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 B0528 GMC Code

1. What are the common symptoms of OBDII code B0528 GMC (Right Turn Signal Circuit High)?

Common symptoms include the right turn signal staying illuminated constantly, regardless of the turn signal switch position.

2. What causes the OBDII code B0528 GMC to trigger?

The code is typically triggered by a fault in the right turn signal circuit, such as a short to power or a malfunctioning turn signal switch.

3. How can I diagnose the OBDII code B0528 GMC?

Diagnosis involves inspecting the right turn signal circuit for shorts, checking the turn signal switch for proper operation, and testing related components like the turn signal relay.

4. Can a bad bulb cause the OBDII code B0528 GMC?

Yes, a faulty right turn signal bulb or socket can sometimes cause the code to trigger. Inspect the bulb and socket for any damage or corrosion.

5. What are some repair tips for addressing OBDII code B0528 GMC?

Repair tips include checking and repairing any damaged wiring in the right turn signal circuit, replacing the turn signal switch if necessary, and clearing the code with an OBDII scanner after repairs.

6. Is it safe to continue driving with the OBDII code B0528 GMC active?

It is generally safe to drive with this code, but it is recommended to address the issue promptly to ensure proper turn signal functionality.

7. Can extreme weather conditions trigger the OBDII code B0528 GMC?

Extreme weather conditions like heavy rain or snow could potentially cause electrical issues leading to the code triggering. Ensure all electrical connections are secure and protected from the elements.

8. How do I reset the OBDII code B0528 GMC after making repairs?

After repairing the issue causing the code, you can reset it using an OBDII scanner or by disconnecting the vehicle's battery for a few minutes.

9. Are there any known recalls related to the OBDII code B0528 GMC?

Check with GMC or the National Highway Traffic Safety Administration (NHTSA) for any recalls related to this specific OBDII code to see if there are any known issues with your vehicle model.

10. Can a DIY enthusiast fix the OBDII code B0528 GMC, or is professional help recommended?

Depending on your skill level and access to tools, a DIY enthusiast may be able to address this code by following repair guides and using proper diagnostic equipment. However, if unsure, seeking professional help is recommended.