AutoCodesBuick – B1982 Buick

B1982 Buick Code - Battery Voltage High

Quick Answer

Battery voltage is supplied to the Body Control Module (BCM). Common causes include Faulty Body Control Module (BCM), Body Control Module (BCM) harness is open or shorted, Body Control Module (BCM) circuit poor electrical connection. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means
B1982 Buick indicates Battery Voltage High.
Common causes
Common causes include Faulty Body Control Module (BCM), Body Control Module (BCM) harness is open or shorted, Body Control Module (BCM) circuit poor electrical connection.
Severity
Moderate - service should be scheduled soon.
Can I drive?
The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
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Code Popularity 2,284
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Aug 02, 2019
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Code B1982 Buick Description

Battery voltage is supplied to the Body Control Module (BCM). BCM utilizes voltage to perform all BCM functions. BCM constantly measures this battery voltage signal. The Diagnostic Trouble Code (DTC) B1982 will set when battery voltage measurement is greater than 15.5 volts for 4 consecutive monitoring cycles (1200 milliseconds). DTC B1982 will clear when the battery voltage is less than 15 volts for 4 consecutive monitoring cycles or when scan tool is used. A history DTC will clear after 50 consecutive ignition cycles if conditions for fault no longer exist.
OBDII Code B1982 Buick - Battery Voltage High - AutoCodes.com
B1982 Buick Code - Battery Voltage High

What are the Possible Causes of the DTC B1982 Buick?

  • Faulty Body Control Module (BCM)
  • Body Control Module (BCM) harness is open or shorted
  • Body Control Module (BCM) circuit poor electrical connection

How to Fix the DTC B1982 Buick?

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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1982 Buick 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 B1982 Buick Code

1. What does the OBDII code B1982 mean for a Buick?

B1982 indicates that the battery voltage is higher than the acceptable range, potentially causing electrical system issues.

2. What are the common symptoms of code B1982 in a Buick?

Symptoms may include erratic electrical behavior, warning lights on the dashboard, or damage to sensitive electronic components.

3. What causes the B1982 code to appear in a Buick?

Common causes include a malfunctioning alternator, faulty voltage regulator, or loose or damaged battery connections.

4. Can driving with code B1982 damage my Buick?

Yes, prolonged high voltage can damage the vehicle's electronic systems and battery, leading to costly repairs.

5. How can I fix the B1982 code on my Buick?

Inspect the alternator, voltage regulator, and battery connections. Replace any faulty components or repair wiring as needed.

6. Is the alternator the most likely culprit for code B1982 in a Buick?

Yes, a malfunctioning alternator is a common cause of excessive battery voltage, but other components should also be checked.

7. Can a faulty battery cause the B1982 code in a Buick?

While rare, a defective battery can contribute to voltage issues, especially if it’s overcharged or has internal faults.

8. How can I prevent the B1982 code from recurring in my Buick?

Regularly inspect the alternator, voltage regulator, battery, and wiring to ensure the electrical system is functioning properly.

9. Can the B1982 code in a Buick be cleared without repairs?

Clearing the code may reset it temporarily, but the underlying issue must be resolved to prevent it from returning.

10. Should I consult a mechanic for code B1982 in my Buick?

If you’re unsure about diagnosing or repairing electrical components, it’s best to consult a qualified mechanic for accurate troubleshooting.

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