B2647 Chevrolet Code - Ambient Light Sensor Circuit
Quick Answer
The Body Control Module (BCM) monitors the Ambient Light Sensor signal circuit in order to determine if the Daytime Running Lights (DRL) or the Auto Headlights (ALC) should be turned ON in the AUTO mode. Common causes include Faulty Ambient Light Sensor, Ambient Light Sensor harness is open or shorted, Ambient Light Sensor 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
- B2647 Chevrolet indicates Ambient Light Sensor Circuit.
- Common causes
- Common causes include Faulty Ambient Light Sensor, Ambient Light Sensor harness is open or shorted, Ambient Light Sensor 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 B2647 Chevrolet Description
What are the Possible Causes of the DTC B2647 Chevrolet?
- Faulty Ambient Light Sensor
- Ambient Light Sensor harness is open or shorted
- Ambient Light Sensor circuit poor electrical connection
- Faulty Body Control Module (BCM)
How to Fix the DTC B2647 Chevrolet?
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 B2647 Chevrolet 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.
Need more information about the B2647 Chevrolet code?
Need more information on how to fix the B2647 Chevrolet code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the B2647 Chevrolet code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about B2647 Chevrolet Code
1. What are the common symptoms of OBDII code B2647 in a Chevrolet related to the Ambient Light Sensor Circuit?
- Common symptoms include malfunctioning automatic headlights, inaccurate ambient light readings, and dashboard warning lights.
2. What are the potential causes for OBDII code B2647 (Ambient Light Sensor Circuit) in a Chevrolet?
- Possible causes include a faulty ambient light sensor, damaged sensor wiring, loose connections, or a problem with the sensor circuit.
3. How can I diagnose the issue related to OBDII code B2647 in a Chevrolet's Ambient Light Sensor Circuit?
- Diagnosis involves checking the ambient light sensor for physical damage, testing the sensor's functionality, inspecting wiring for breaks or corrosion, and using a diagnostic scanner to read the code.
4. What are some repair tips for fixing OBDII code B2647 in a Chevrolet due to issues with the Ambient Light Sensor Circuit?
- Repair tips include replacing the faulty ambient light sensor, repairing or replacing damaged wiring, ensuring proper sensor alignment and calibration, and clearing the trouble code after repairs.
5. Can I drive my Chevrolet with OBDII code B2647 related to the Ambient Light Sensor Circuit?
- It is generally safe to drive the vehicle with this code, but it is recommended to address the issue promptly to avoid potential inconvenience and safety concerns related to the automatic lighting system.
6. How important is the Ambient Light Sensor Circuit in a Chevrolet, and what functions does it control?
- The Ambient Light Sensor Circuit is crucial for automatic lighting systems in a Chevrolet, controlling functions such as automatic headlight activation and adjusting interior lighting based on external light conditions.
7. Are there any common mistakes to avoid when dealing with OBDII code B2647 in a Chevrolet's Ambient Light Sensor Circuit?
- Common mistakes to avoid include overlooking simple wiring issues, replacing the sensor without proper diagnosis, and neglecting to clear the trouble code after repairs.
8. Can weather conditions affect the performance of the Ambient Light Sensor Circuit in a Chevrolet?
- Yes, extreme weather conditions such as heavy rain, snow, or direct sunlight can impact the sensor's accuracy and functionality, leading to potential issues related to OBDII code B2647.
9. How long does it typically take to repair OBDII code B2647 caused by problems with the Ambient Light Sensor Circuit in a Chevrolet?
- Repair time can vary depending on the specific issue, but simple repairs like sensor replacement or wiring fixes can usually be completed within an hour or two.
10. Is it necessary to reset the vehicle's computer after repairing OBDII code B2647 in a Chevrolet's Ambient Light Sensor Circuit?
- Yes, it is important to reset the vehicle's computer using a diagnostic scanner after completing any repairs to ensure the trouble code is cleared and the system can recalibrate properly.
Discuss the causes and fixes for B2647 Chevrolet OBDII Code
Code B2647 Chevrolet 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.
