Engine-Codes - Mercury - B102F Mercury

B102F Mercury Code - Auxiliary Switch Signal Erratic

- Code Popularity: 904 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 B102F Mercury?

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 Auxiliary Switch
  • Auxiliary Switch harness is open or shorted
  • Auxiliary Switch circuit poor electrical connection
  • Faulty Body Control Module (BCM)
⚠ Does your Mercury have Safety Recalls? → Check here

How to Fix the DTC B102F Mercury?

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 B102F Mercury 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 B102F Mercury Code Mean?

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

B102F Mercury Code - Auxiliary Switch Signal Erratic

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