B109B - License Plate Light

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

B109B Possible Causes

  • Faulty License Plate Light
  • License Plate Light harness is open or shorted
  • License Plate Light circuit poor electrical connection
  • Faulty Body Control Module (BCM)

First diagnose B109B code

    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 terminals.

Cost of diagnosing the B109B code

    Labor: 1.0

    The cost of diagnosing the B109B 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.

B109B Possible Symptoms

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

B109B Meaning

The Body Control Module (BCM) monitors the License Plate Light. The BCM sets the OBDII code when the License Plate Light is not to factory specifications.
OBDII Code B109B - License Plate Light - Engine-Codes.com

B109B More Information

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B109B Information for specific makes

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