AutoCodes – GMC – B1529 GMC

B1529 GMC Code - Control Module Voltage Reference Output 5 Circuit

Quick Answer

The Body Control Module (BCM) supplies voltage to the steering wheel control switches and monitors the reindicator. Common causes include Faulty Steering Wheel Controls Switch, Steering Wheel Controls Switch harness is open or shorted, Steering Wheel Controls 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: B1529 GMC indicates Control Module Voltage Reference Output 5 Circuit.
Common causes: Common causes include Faulty Steering Wheel Controls Switch, Steering Wheel Controls Switch harness is open or shorted, Steering Wheel Controls 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 4,392

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 Apr 29, 2019

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B1529 GMC Description

The Body Control Module (BCM) supplies voltage to the steering wheel control switches and monitors the reindicator. Each switch state is associated to a set resistance value and when pressed a specific voltage drop occurs across the resistor unique to the switch. The BCM identifies the switch selection and activates the feature.

OBDII Code B1529 GMC - Control Module Voltage Reference Output 5 Circuit - AutoCodes.com — B1529 GMC Code - Control Module Voltage Reference Output 5 Circuit

What does this mean?

What are the Possible Causes of the DTC B1529 GMC?

Faulty Steering Wheel Controls Switch
Steering Wheel Controls Switch harness is open or shorted
Steering Wheel Controls Switch circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B1529 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 does this mean?

Code Tech Notes

B1529 03: Control Module Voltage Reference Output 5 Circuit Low Voltage
B1529 07: Control Module Voltage Reference Output 5 Circuit High Voltage

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1529 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.

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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 B1529 GMC Code

1. What are the common symptoms of OBDII code B1529 GMC?

- Common symptoms include erratic behavior of electrical components, illumination of the Check Engine Light, and issues with the vehicle's performance.

2. What causes OBDII code B1529 GMC to trigger?

- The code is typically triggered by a malfunction in the Control Module Voltage Reference Output 5 Circuit, which may be caused by a faulty control module, wiring issues, or a damaged component.

3. How can I diagnose the Control Module Voltage Reference Output 5 Circuit issue?

- Diagnosing the issue involves using a diagnostic scanner to read the code, inspecting the wiring and connectors for damage, and testing the control module and related components for proper functionality.

4. Can I still drive my vehicle with OBDII code B1529 GMC?

- While it may be possible to drive the vehicle with this code present, it is recommended to address the issue promptly to prevent further damage or potential safety hazards.

5. What are some repair tips for resolving OBDII code B1529 GMC?

- Repair tips include checking and repairing any damaged wiring or connectors, replacing the control module if necessary, and ensuring all related components are in good working order.

6. How much does it cost to repair OBDII code B1529 GMC?

- The cost of repairs for this code can vary depending on the underlying cause, the extent of the damage, and labor rates. It is recommended to consult with a professional mechanic for an accurate estimate.

7. Can I reset OBDII code B1529 GMC without fixing the underlying issue?

- While it is possible to clear the code with a diagnostic scanner, resetting it without addressing the root cause may lead to the code reappearing and potential ongoing issues with the vehicle.

8. Is OBDII code B1529 GMC a common issue in GMC vehicles?

- While the occurrence of this specific code may vary, issues related to control module voltage reference outputs can be found in various vehicles, including GMC models.

9. Will OBDII code B1529 GMC affect my vehicle's fuel efficiency?

- In some cases, a malfunction in the control module voltage reference output circuit can impact fuel efficiency, as it may affect the proper operation of engine components and systems.

10. Can I prevent OBDII code B1529 GMC from occurring in the future?

- Regular maintenance, including checking the electrical system and addressing any issues promptly, can help prevent the occurrence of OBDII code B1529 GMC and other related issues.