Engine-Codes - Generic - B123F

B123F Code - Automatic Lighting Control Unit/Sensor Internal Error

- Code Popularity: 2,591 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents

|What are the Possible Causes of the B123F Code?

  • Faulty Sunlight Sensor
  • Sunlight Sensor harness is open or shorted
  • Sunlight Sensor circuit poor electrical connection
  • Faulty Climate Control Unit

|How to Fix the B123F Code?

Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

|What is the cost to diagnose the B123F code?

Labor: 1.0

The cost to diagnose the B123F code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

|What are B123F code possible symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

|What Does the B123F Code Mean?

The Climate Control Unit monitors the Automatic Lighting Control Unit/Sensor. The Climate Control Unit sets the OBDII code when the Automatic Lighting Control Unit/Sensor is not to factory specifications.

Automatic Lighting Control Unit/Sensor Internal Error

|Need more information with the B123F code?

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|B123F code information for specific makes

  • B123F ACURA Automatic Lighting Control Unit/Sensor Internal Error
  • B123F HONDA Automatic Lighting Control Unit/Sensor Internal Error

|Need help with a B123F code?

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