Engine-Codes - Generic - B1279

B1279 Code - Dimmer Switch Circuit Malfunction

- Code Popularity: 5,754 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents

|What are the Possible Causes of the Code B1279?

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

|How to Fix the B1279 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 Code B1279?

Labor: 1.0

The cost to diagnose the B1279 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.

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|What are Code B1279 Possible Symptoms?

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

|What Does the B1279 Code Mean?

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.

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

|Code B1279 Information for Specific Makes

|Need Help with the B1279 Code?

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