B1566 - Door Ajar Circuit Short To Ground

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

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

Possible symptoms

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

B1566 Description

The Body Control Module (BCM) monitors the Door Ajar Switch. The BCM sets the OBDII code when the Door Ajar Switch is not to factory specifications.
OBDII Code B1566 - Door Ajar Circuit Short To Ground - AutoCodes.com

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B1566 Comments

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