OBD Guide
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B1573

Door Ajar Left Right Switch Circuit Short To Battery

B1573 is an OBD-II diagnostic trouble code meaning: Door Ajar Left Right Switch Circuit Short To Battery. Common causes: wiring harness damage, oxidation of contacts in the sensor connector. Estimated repair cost: $22–56.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$22–56 (est.)

Symptoms

  • False alarm
  • Incorrect operation of interior lighting
  • Error on the dashboard
  • Door light is constantly on or off

Causes

  • Wiring harness damage
  • Oxidation of contacts in the sensor connector
  • Door sensor malfunction
  • Short circuit in the circuit

How to Fix

  1. Check wiring harness for damage
  2. Clean the contacts in the sensor connector
  3. Check the door opening sensor for functionality
  4. Replace damaged components
  5. Reset the error with an OBD-II scanner

Related codes

B1571B1572B1574

FAQ

What does the B1573 code mean?

B1573 is an OBD-II diagnostic trouble code that indicates: Door Ajar Left Right Switch Circuit Short To Battery

What causes a B1573 error code?

The most common causes of B1573 include: Wiring harness damage; Oxidation of contacts in the sensor connector; Door sensor malfunction; Short circuit in the circuit.

How do I fix a B1573 diagnostic trouble code?

To fix B1573: Check wiring harness for damage. Clean the contacts in the sensor connector. Check the door opening sensor for functionality. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1573?

Limited driving only, diagnose soon

How much does it cost to fix B1573?

The estimated repair cost for B1573 is $22–56. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat