OBD Guide
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B1572

Door Ajar Left Right Switch Circuit Open

B1572 is an OBD-II diagnostic trouble code meaning: Door Ajar Left Right Switch Circuit Open. Common causes: broken wiring harness in the door area, oxidation of switch contacts. Estimated repair cost: $11–56.

Severity
✅ Low
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$11–56 (est.)

Symptoms

  • Incorrect operation of the central locking
  • The door open indicator is on when the doors are closed
  • Interior lighting does not work when opening the door

Causes

  • Broken wiring harness in the door area
  • Oxidation of switch contacts
  • Door lock switch malfunction
  • Problems with connectors or poor contact

How to Fix

  1. Check the integrity of the wiring harness in the door
  2. Clean the switch contacts from oxides
  3. Replace the door lock switch if necessary
  4. Check connectors for corrosion and damage

Related codes

B1571B1573B1574

FAQ

What does the B1572 code mean?

B1572 is an OBD-II diagnostic trouble code that indicates: Door Ajar Left Right Switch Circuit Open

What causes a B1572 error code?

The most common causes of B1572 include: Broken wiring harness in the door area; Oxidation of switch contacts; Door lock switch malfunction; Problems with connectors or poor contact.

How do I fix a B1572 diagnostic trouble code?

To fix B1572: Check the integrity of the wiring harness in the door. Clean the switch contacts from oxides. Replace the door lock switch if necessary. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1572?

Limited driving only, diagnose soon

How much does it cost to fix B1572?

The estimated repair cost for B1572 is $11–56. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat