B1443 - Door Handle Switch Circuit Open

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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Possible causes

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

Possible symptoms

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

B1443 Description

The Body Control Module (BCM) monitors the Door Handle Switch. The BCM sets the OBDII code when the Door Handle Switch is not to factory specifications.
OBDII Code B1443 - Door Handle Switch Circuit Open - AutoCodes.com

B1443 Information for specific makes

  • B1443 LEXUS Air Outlet Damper Control Servomotor Circuit
  • B1443 SCION Air Outlet Damper Control Servomotor Circuit
  • B1443 TOYOTA Air Outlet Damper Control Servomotor Circuit

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Related Information

B1443 Comments

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