AutoCodes – GMC – B1982 GMC

B1982 GMC 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 GMC 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 2,695

How popular is this code, among other codes? Low

Repair Importance Level

Moderate (Service soon) (2 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 02, 2019

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B1982 GMC 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 GMC - Battery Voltage High - AutoCodes.com — B1982 GMC Code - Battery Voltage High

What does this mean?

What are the Possible Causes of the DTC B1982 GMC?

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 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

DTC B1982 BATTERY VOLTAGE TOO HIGH BCM
DTC B1982 BATTERY VOLTAGE TOO HIGH RADIO

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1982 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 B1982 GMC Code

1. What are the common symptoms of OBDII code B1982 in a GMC related to high battery voltage?

The common symptoms include illuminated warning lights on the dashboard, issues with electronic components, and potential damage to the vehicle's electrical system.

2. What are the possible causes of OBDII code B1982 GMC indicating high battery voltage?

The possible causes include a malfunctioning alternator, a faulty voltage regulator, a short circuit in the wiring, or a problem with the battery itself.

3. How can I diagnose the OBDII code B1982 GMC related to high battery voltage?

Diagnosing this code usually involves testing the battery voltage, checking the alternator output, inspecting the wiring for any signs of damage, and examining the voltage regulator for proper operation.

4. What are some repair tips for resolving OBDII code B1982 GMC indicating high battery voltage?

Repair tips may include replacing a faulty alternator or voltage regulator, repairing any damaged wiring, ensuring the battery is in good condition, and clearing the trouble code from the vehicle's computer.

5. Is it safe to continue driving a GMC with OBDII code B1982 displaying high battery voltage?

It is not recommended to continue driving the vehicle with this code as it can lead to further electrical problems and potential damage to the vehicle's components. It is best to address the issue promptly.

6. Can resetting the vehicle's computer clear OBDII code B1982 GMC indicating high battery voltage?

Resetting the computer may temporarily clear the code, but if the underlying issue causing the high battery voltage is not addressed, the code is likely to reappear.

7. How much does it typically cost to repair OBDII code B1982 GMC related to high battery voltage?

The cost of repair can vary depending on the specific cause of the high battery voltage. It is recommended to consult a mechanic for a proper diagnosis and cost estimate.

8. Are there any preventive measures to avoid OBDII code B1982 GMC displaying high battery voltage?

Regular maintenance of the vehicle's electrical system, including checking the battery, alternator, and wiring, can help prevent issues leading to high battery voltage and the associated trouble code.

9. Can extreme weather conditions contribute to triggering OBDII code B1982 GMC for high battery voltage?

Extreme weather conditions, such as very high temperatures, can potentially affect the performance of the battery and electrical system, leading to high voltage issues and triggering the trouble code.

10. How urgent is it to address OBDII code B1982 GMC showing high battery voltage?

It is important to address this code promptly to avoid potential damage to the vehicle's electrical components and ensure the safe operation of the vehicle. Delaying repairs can lead to more extensive issues down the line.