Engine-Codes - Generic - B2109

B2109 Code - Heated Wind Shield Relay Short To Battery

- Code Popularity: 15,336 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
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What are the Possible Causes of the DTC B2109?

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 Heated Wind Shield Relay
  • Heated Wind Shield Relay harness is open or shorted
  • Heated Wind Shield Relay circuit poor electrical connection
  • Faulty Body Control Module (BCM)
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How to Fix the DTC B2109?

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 pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the B2109 code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

What are Code Possible Symptoms?

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

What Does the B2109 Code Mean?

The Body Control Module (BCM) monitors the Heated Wind Shield Relay. The BCM sets the OBDII code when the Heated Wind Shield Relay is not to factory specifications.

B2109 Code - Heated Wind Shield Relay Short To Battery

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Code B2109 Information for Specific Makes

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