B1971 Pontiac Code - Inadvertent Power Fault
Quick Answer
If interior lights are accidentally left on, a Delayed Interior Lighting (DIL) feature provides automatic shutoff. Common causes include Faulty Inadvertent Power Relay, Inadvertent Power Relay harness is open or shorted, Inadvertent Power Relay 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
- B1971 Pontiac indicates Inadvertent Power Fault.
- Common causes
- Common causes include Faulty Inadvertent Power Relay, Inadvertent Power Relay harness is open or shorted, Inadvertent Power Relay 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.
Code B1971 Pontiac Description
- A door is opened or closed, or driver door unlock message is received.
- The trunk is opened or closed.
- Interior lights are turned on. When DIL relay is energized, power is supplied to interior lights and high side of the interior light relay coil.
The BCM continuously monitors output to DIL relay. The Diagnostic Trouble Code (DTC) B1971 will set when output is commanded on or off, and short or open is detected for at least 2 seconds. When DTC B1971 is set, BCM will continue to command the requested state of relay until it is achieved or no longer necessary. DTC B1971 will clear when conditions for fault no longer exist or when scan tool is used. A history DTC will clear after 50 consecutive ignition cycles if conditions for fault no longer exist.
What are the Possible Causes of the DTC B1971 Pontiac?
- Faulty Inadvertent Power Relay
- Inadvertent Power Relay harness is open or shorted
- Inadvertent Power Relay circuit poor electrical connection
- Faulty Body Control Module (BCM)
How to Fix the DTC B1971 Pontiac?
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 is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B1971 Pontiac 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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Frequently Asked Questions about B1971 Pontiac Code
1. What are the common symptoms of OBDII code B1971 in a Pontiac vehicle?
- Common symptoms include intermittent or complete loss of power to various systems, such as the radio, lights, or power windows.
2. What could cause the Inadvertent Power Fault code B1971 in a Pontiac?
- Possible causes include a faulty ignition switch, loose wiring connections, a blown fuse, or a malfunctioning body control module.
3. How can I diagnose the Inadvertent Power Fault code B1971 in my Pontiac?
- Start by checking the fuse box for any blown fuses, inspecting the wiring harness for damage or loose connections, and testing the ignition switch for proper functionality.
4. Is it safe to continue driving with OBDII code B1971 in my Pontiac?
- It is not recommended to drive the vehicle with this code present, as it may lead to unexpected power loss while driving, compromising safety.
5. Can I reset the Inadvertent Power Fault code B1971 in my Pontiac with a simple reset tool?
- While you can attempt to clear the code with an OBDII scanner, it is crucial to address the underlying issue causing the fault to prevent future occurrences.
6. Are there any DIY repair tips for fixing OBDII code B1971 in a Pontiac?
- DIY tips include checking and replacing blown fuses, tightening loose wiring connections, and inspecting the ignition switch for wear or damage.
7. How much does it typically cost to repair OBDII code B1971 in a Pontiac at a professional auto repair shop?
- Repair costs can vary depending on the exact cause of the fault, but expect to pay anywhere from $100 to $300 for parts and labor.
8. Will disconnecting the battery reset the Inadvertent Power Fault code B1971 in my Pontiac?
- Disconnecting the battery may temporarily clear the code, but it is not a permanent solution as the underlying issue causing the fault will need to be addressed.
9. Can extreme weather conditions trigger the Inadvertent Power Fault code B1971 in a Pontiac?
- Yes, extreme temperature fluctuations or exposure to moisture can sometimes exacerbate electrical issues leading to this fault code.
10. Is it necessary to visit a dealership for diagnosis and repair of OBDII code B1971 in my Pontiac, or can any auto repair shop handle it?
- Any reputable auto repair shop with experience in diagnosing and repairing electrical issues should be able to address OBDII code B1971 in your Pontiac.
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