AutoCodes – Cadillac – B0528 Cadillac

B0528 Cadillac 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 Cadillac 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.

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Code Popularity 806

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

What does this mean?

What are the Possible Causes of the DTC B0528 Cadillac?

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 Cadillac?

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 Cadillac 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.

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Need Help with the Code?

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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 Cadillac Code

1. What are the common symptoms of OBDII code B0528 in a Cadillac related to the right turn signal circuit?

The common symptoms include the right turn signal not functioning properly or staying on constantly.

2. What are the possible causes of OBDII code B0528 Cadillac indicating a high right turn signal circuit?

The code may be triggered by issues such as a faulty turn signal switch, damaged wiring, or a malfunctioning body control module.

3. How can I diagnose the OBDII code B0528 in a Cadillac for the right turn signal circuit high issue?

Diagnosis involves checking the right turn signal bulb, inspecting the wiring for any damage, and using a scan tool to assess the body control module.

4. What are some repair tips for fixing the OBDII code B0528 in a Cadillac related to the right turn signal circuit?

Repair tips include replacing the turn signal switch if faulty, repairing or replacing damaged wiring, and resetting the body control module after repairs.

5. Can OBDII code B0528 Cadillac for the right turn signal circuit high problem be fixed at home, or is professional help needed?

While basic checks like inspecting the bulb and fuses can be done at home, diagnosing and repairing complex issues may require professional assistance.

6. Is it safe to drive a Cadillac with the OBDII code B0528 indicating a high right turn signal circuit?

It is not recommended to drive the vehicle with this code as it can affect the proper functioning of the turn signal, posing a safety risk on the road.

7. How urgent is it to address the OBDII code B0528 in a Cadillac for the right turn signal circuit issue?

It is important to address the issue promptly to ensure the proper operation of the turn signal and maintain road safety.

8. Can resetting the OBDII system clear the B0528 code related to the Cadillac right turn signal circuit high problem?

Resetting the system may temporarily clear the code, but it is crucial to diagnose and fix the underlying issue to prevent the code from reappearing.

9. Are there any recalls or technical service bulletins related to OBDII code B0528 in Cadillacs for the right turn signal circuit issue?

It is advisable to check with a Cadillac dealership or online resources for any existing recalls or technical bulletins addressing this specific OBDII code.

10. How can regular maintenance help prevent the occurrence of OBDII code B0528 in Cadillacs related to the right turn signal circuit high issue?

Regular maintenance, including checking the turn signal operation during routine inspections, can help identify potential issues early and prevent the code from appearing.