OBD Guide
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B242A

Automatic Back Door Closure Condition

B242A is an OBD-II diagnostic trouble code meaning: Automatic Back Door Closure Condition. Common causes: mechanical obstruction in the closing mechanism, door position sensor malfunction. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Automatic rear door lock does not work
  • The door does not close completely
  • The system issues a warning on the dashboard

Causes

  • Mechanical obstruction in the closing mechanism
  • Door position sensor malfunction
  • Problems in the wiring harness
  • Control unit malfunction
  • Low battery (low voltage)

How to Fix

  1. Check for mechanical obstructions in the closing mechanism
  2. Check door position sensors
  3. Check wiring harness for damage
  4. Check battery voltage
  5. Scan the control unit for additional errors

Related codes

B242BB242CB242D

FAQ

What does the B242A code mean?

B242A is an OBD-II diagnostic trouble code that indicates: Automatic Back Door Closure Condition

What causes a B242A error code?

The most common causes of B242A include: Mechanical obstruction in the closing mechanism; Door position sensor malfunction; Problems in the wiring harness; Control unit malfunction.

How do I fix a B242A diagnostic trouble code?

To fix B242A: Check for mechanical obstructions in the closing mechanism. Check door position sensors. Check wiring harness for damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B242A?

Limited driving only, diagnose soon

How much does it cost to fix B242A?

The estimated repair cost for B242A is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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