B1831 - Door Unlock Disarm Switch Circuit Open

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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B1831 Possible Causes

  • Faulty Door Unlock Disarm Switch
  • Door Unlock Disarm Switch harness is open or shorted
  • Door Unlock Disarm Switch circuit poor electrical connection
  • Faulty Body Control Module (BCM)

First diagnose B1831 code

    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's pins.

Cost of diagnosing the B1831 code

    Labor: 1.0

    The cost of diagnosing the B1831 code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

B1831 Possible Symptoms

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

B1831 Description

The Body Control Module (BCM) monitors the Door Unlock Disarm Switch. The BCM sets the OBDII code when the Door Unlock Disarm Switch is not to factory specifications.
OBDII Code B1831 - Door Unlock Disarm Switch Circuit Open - AutoCodes.com

B1831 More Information

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B1831 Information for specific makes

  • B1831 LEXUS Open In Driver Side Curtain Shield Squib Circuit
  • B1831 SCION Open In Driver Side Curtain Shield Squib Circuit
  • B1831 TOYOTA Open In Driver Side Curtain Shield Squib Circuit

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B1831 Comments

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