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AutoCodes - Generic - B1279

B1279 Code - Dimmer Switch Circuit Malfunction

- Code Popularity: 5,961 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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By - Updated Mar 07, 2019
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|Code B1279 Possible Causes

  • Faulty Dimmer Switch
  • Dimmer Switch harness is open or shorted
  • Dimmer Switch circuit poor electrical connection
  • Faulty Multiplex Integrated Control Unit (MICU)

|How do I Fix the Code B1279?

Check 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.

Does your Car have Safety Recalls? → Check here

|What is the Cost to Diagnose the Code B1279?

Labor: 1.0

The cost of diagnosing the B1279 code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

|What are Code B1279 Possible Symptoms?

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

|Code B1279 Description

The Multiplex Integrated Control Unit (MICU) monitors the Dimmer Switch. The MICU sets the OBDII code when the Dimmer Switch is not to factory specifications.

OBDII Code B1279 - Dimmer Switch Circuit Malfunction -
B1279 Code - Dimmer Switch Circuit Malfunction

|Need More Information on the B1279 Code?

Need more information on how to fix the B1279 code? Get Access to Factory Service Manuals

|Information for Specific Makes

|Need Help with the B1279 Code?

Get the B1279 code diagnosed by a professional: Find a repair shop in your area

|Code B1279 comments

Help us improve Leave a comment below or tell us if the information above helps you fix the code. What are the symptoms on your vehicle for the B1279 code? Have you replaced any parts?
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