B1971 GMC Code - Inadvertent Power Fault
Quick Answer
The B1971 GMC code refers to an Inadvertent Power Fault, indicating that there is an issue with the power supply to a specific component or system in the vehicle. Common causes include Faulty wiring or connectors, Corrosion or damage to electrical components, Issues with the vehicle's electrical system. 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
- B1971 GMC indicates Inadvertent Power Fault.
- Common causes
- Common causes include Faulty wiring or connectors, Corrosion or damage to electrical components, Issues with the vehicle's electrical system.
- 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code B1971 GMC Description
The B1971 GMC code refers to an Inadvertent Power Fault, indicating that there is an issue with the power supply to a specific component or system in the vehicle. This fault can disrupt the normal operation of various electrical systems, leading to potential performance issues and safety concerns. Inadvertent power faults can be caused by a variety of factors, including wiring problems, faulty components, or issues with the vehicle's electrical system.
Common Causes of B1971 GMC
- Faulty wiring or connectors
- Corrosion or damage to electrical components
- Issues with the vehicle's electrical system
- Faulty power supply to specific components
- Short circuits or electrical overloads
Symptoms of B1971 GMC
- Intermittent loss of power to critical systems
- Dashboard warning lights illuminated
- Rough idling or stalling
- Poor acceleration
- Complete system failure
How to Fix B1971 GMC
- Perform a thorough inspection of the vehicle's electrical system to identify the source of the inadvertent power fault.
- Check for any loose or damaged wiring, connectors, or components that may be causing the issue.
- Test the power supply to the affected component or system to ensure it is functioning correctly.
- Replace any faulty wiring, connectors, or components as needed.
- Clear the diagnostic trouble codes and test the vehicle to ensure the issue has been resolved.
Cost to Fix B1971 GMC
The typical repair costs for addressing an inadvertent power fault can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, the cost of parts and labor for this type of repair can range from $100 to $500 or more. It's important to note that diagnostic time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It's recommended to check with local auto repair shops for a more accurate estimate based on your specific situation.
Need more information about the B1971 GMC code?
Need more information on how to fix the B1971 GMC code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the B1971 GMC code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about B1971 GMC Code
1. What does the OBDII code B1971 mean on a GMC vehicle?
The code B1971 indicates an "Inadvertent Power Fault," meaning there’s an issue with the circuit that controls power to certain interior components like lights or accessories when the vehicle is off.
2. What are common symptoms of the B1971 code in a GMC?
Symptoms may include interior lights staying on, lights not turning on at all, battery drain, or accessories malfunctioning when the vehicle is off.
3. What causes the B1971 code to appear on a GMC?
Common causes include a short circuit, faulty wiring, a defective inadvertent power relay, or issues with the body control module (BCM).
4. How is the B1971 code typically diagnosed?
A technician will inspect the wiring for damage, test the inadvertent power relay, and check the BCM for proper function using a diagnostic tool.
5. Can a drained battery cause the B1971 code?
A drained battery is more likely a symptom than a cause of B1971, as the code typically stems from a fault in the power circuit that may lead to continuous current draw.
6. Is it safe to drive a GMC with the B1971 code?
Yes, it’s generally safe to drive, but ignoring the issue could lead to battery drainage or electrical problems, which might leave you stranded.
7. How can the B1971 code be fixed on a GMC vehicle?
Repairs may involve replacing a faulty relay, repairing damaged wiring, or reprogramming or replacing the body control module (BCM).
8. Can the B1971 code clear itself?
The code will not usually clear itself; the underlying issue must be resolved, and the code may need to be cleared with an OBDII scanner.
9. How much does it cost to repair a GMC with a B1971 code?
Repair costs vary depending on the exact issue, ranging from $50 to $300 for wiring or relay fixes, or more if the BCM requires replacement.
10. Can I fix the B1971 code on my GMC myself?
If you’re experienced with electrical systems, you can inspect and repair wiring or replace the relay. However, BCM issues may require professional diagnostics and repair.
Discuss the causes and fixes for B1971 GMC OBDII Code
Code B1971 GMC comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.