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AutoCodes - Generic - B123F

B123F Code - Automatic Lighting Control Unit/Sensor Internal Error

- Code Popularity: 4,045 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC B123F?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Sunlight Sensor
  • Sunlight Sensor harness is open or shorted
  • Sunlight Sensor circuit poor electrical connection
  • Faulty Climate Control Unit
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How to Fix the DTC B123F?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B123F code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

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

Code B123F Description

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.

OBDII Code B123F - Automatic Lighting Control Unit/Sensor Internal Error - AutoCodes.com
B123F Code - Automatic Lighting Control Unit/Sensor Internal Error

Need More Information on the Code?

Need more information on how to fix the B123F code? Get Access to Factory Service Manuals

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 the Code?

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Code B123F comments

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