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AutoCodes - Generic - B2104

B2104 Code - Door Passenger Key Cylinder Switch Failure

- Code Popularity: 5,325 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC B2104?

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 Door Passenger Key Cylinder Switch
  • Door Passenger Key Cylinder Switch harness is open or shorted
  • Door Passenger Key Cylinder Switch circuit poor electrical connection
  • Faulty Body Control Module (BCM)
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How to Fix the DTC B2104?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B2104 code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

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

Code B2104 Description

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

OBDII Code B2104 - Door Passenger Key Cylinder Switch Failure - AutoCodes.com
B2104 Code - Door Passenger Key Cylinder Switch Failure

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Information for Specific Makes

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Code B2104 comments

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