Engine-Codes - Generic - B2108

B2108 Code - Trunk Key Cylinder Switch Failure

- Code Popularity: 5,111 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 B2108?

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 Trunk Key Cylinder Switch
  • Trunk Key Cylinder Switch harness is open or shorted
  • Trunk Key Cylinder Switch circuit poor electrical connection
  • Faulty Body Control Module (BCM)
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How to Fix the DTC B2108?

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 B2108 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 B2108 Code Mean?

The Body Control Module (BCM) monitors the Trunk Key Cylinder Switch. The BCM sets the OBDII code when the Trunk Key Cylinder Switch is not to factory specifications.

B2108 Code - Trunk Key Cylinder Switch Failure

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Code B2108 Information for Specific Makes

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