B123F Acura Code - Automatic Lighting Control Unit/Sensor Internal Error
Quick Answer
The Climate Control Unit monitors the Automatic Lighting Control Unit/Sensor. Common causes include Faulty Sunlight Sensor, Sunlight Sensor harness is open or shorted, Sunlight 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
- B123F Acura indicates Automatic Lighting Control Unit/Sensor Internal Error.
- Common causes
- Common causes include Faulty Sunlight Sensor, Sunlight Sensor harness is open or shorted, Sunlight 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 B123F Acura Description
What are the Possible Causes of the DTC B123F Acura?
- Faulty Sunlight Sensor
- Sunlight Sensor harness is open or shorted
- Sunlight Sensor circuit poor electrical connection
- Faulty Climate Control Unit
How to Fix the DTC B123F Acura?
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 B123F Acura 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 B123F Acura Code
1. What does the OBDII code B123F mean on an Acura?
B123F indicates an internal error in the Automatic Lighting Control Unit or sensor, which manages features like automatic headlights.
2. What are the symptoms of code B123F in an Acura?
Symptoms may include headlights not turning on or off automatically, malfunctioning dashboard lights, or the automatic lighting system being unresponsive.
3. What causes the B123F code to appear in an Acura?
Common causes include a faulty Automatic Lighting Control Unit, a malfunctioning ambient light sensor, wiring issues, or software glitches.
4. How do I diagnose the B123F code on my Acura?
Diagnose by scanning the vehicle with an OBDII tool, inspecting the control unit and ambient light sensor for damage, and checking the wiring and connectors for faults.
5. Can I still drive my Acura with the B123F code?
Yes, you can drive the vehicle, but the automatic lighting system may not function properly, which could impact visibility and safety in low-light conditions.
6. How do I repair a B123F error in an Acura?
Repairs may involve replacing the Automatic Lighting Control Unit, replacing the ambient light sensor, or fixing damaged wiring connections.
7. How much does it cost to fix the B123F code on an Acura?
Repair costs vary but may range from $150 to $500, depending on whether the issue is with the sensor, control unit, or wiring.
8. Can I reset the B123F code on my Acura without repairing it?
While you can clear the code with an OBDII scanner, it will likely reappear if the underlying issue isn't resolved.
9. What tools are needed to troubleshoot the B123F code?
You’ll need an OBDII scanner, a multimeter to check wiring, and possibly a service manual for your specific Acura model.
10. Is the B123F code a common problem in Acura vehicles?
While not extremely common, this code can occur in Acura models with advanced lighting control systems, especially as components age.
Discuss the causes and fixes for B123F Acura OBDII Code
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