B1279 - Dimmer Switch Circuit Malfunction

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What does this mean?

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 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.

Cost of diagnosing the B1279 code

    Labor: 1.0

    The cost of diagnosing the B1279 code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

B1279 Possible Symptoms

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

B1279 Meaning

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 - Engine-Codes.com

B1279 More Information

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