AutoCodes – Cadillac – B1982 Cadillac

B1982 Cadillac 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 Cadillac 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 3,542

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 Cadillac 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 Cadillac - Battery Voltage High - AutoCodes.com — B1982 Cadillac Code - Battery Voltage High

What does this mean?

What are the Possible Causes of the DTC B1982 Cadillac?

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 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 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 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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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 Cadillac Code

1. What are the common symptoms of OBDII code B1982 Cadillac (Battery Voltage High)?

The common symptoms include the battery warning light illuminating on the dashboard, erratic voltage readings on the instrument cluster, and potential issues with starting the vehicle.

2. What are the possible causes of OBDII code B1982 Cadillac (Battery Voltage High)?

Potential causes include a malfunctioning voltage regulator, a faulty alternator, a short circuit in the electrical system, or a problem with the battery itself.

3. How can I diagnose the OBDII code B1982 Cadillac (Battery Voltage High)?

Diagnosis typically involves using a multimeter to test the voltage output of the alternator, checking the battery health, inspecting the wiring for any signs of damage, and scanning the vehicle's computer for related trouble codes.

4. Can I still drive my Cadillac with the OBDII code B1982 (Battery Voltage High)?

It is not recommended to drive your Cadillac with this code as it can lead to further electrical system issues and potential damage to the battery and other components.

5. How do I repair OBDII code B1982 Cadillac (Battery Voltage High)?

Repairing this code often involves replacing the faulty alternator, repairing any damaged wiring, checking and possibly replacing the battery, and ensuring the voltage regulator is functioning correctly.

6. Are there any DIY tips for troubleshooting OBDII code B1982 Cadillac (Battery Voltage High)?

You can start by checking the battery connections for tightness, inspecting the alternator belt for wear, and ensuring the battery terminals are clean and free of corrosion.

7. How much does it cost to fix OBDII code B1982 Cadillac (Battery Voltage High)?

The cost of fixing this code can vary depending on the specific issue, but it typically ranges from $200 to $600 for parts and labor.

8. Will resetting the OBDII code B1982 Cadillac (Battery Voltage High) make it go away permanently?

Resetting the code may temporarily clear the warning light, but if the underlying issue is not addressed, the code is likely to return.

9. Can a faulty battery cause OBDII code B1982 Cadillac (Battery Voltage High)?

Yes, a faulty battery can contribute to high voltage issues in the electrical system, triggering the OBDII code B1982.

10. How urgent is it to address OBDII code B1982 Cadillac (Battery Voltage High)?

It is important to address this code promptly to prevent further damage to the vehicle's electrical system and ensure the safe operation of your Cadillac.