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B1C37 Ford Code - Master Lock Switch

- Code Popularity: 5,432 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC B1C37 Ford?

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 Master Lock Switch
  • Master Lock Switch harness is open or shorted
  • Master Lock Switch circuit poor electrical connection
  • Faulty Body Control Module (BCM)
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How to Fix the DTC B1C37 Ford?

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.

Code Tech Notes

B1C37:11 Master Lock Switch Circuit Short To Ground
B1C37:23 Master Lock Switch Signal Stuck Low

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1C37 Ford 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 B1C37 Ford Description

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

OBDII Code B1C37 Ford - Master Lock Switch - AutoCodes.com
B1C37 Ford Code - Master Lock Switch

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Code B1C37 Ford comments

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