OBD Guide
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B2422

Automatic Back Door State

B2422 is an OBD-II diagnostic trouble code meaning: Automatic Back Door State. Common causes: door motor malfunction, open or shorted wiring harness. Estimated repair cost: $56–167.

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

Symptoms

  • Automatic tailgate won't open/close
  • The door opens/closes partially
  • Flashing lights or beeps when trying to open/close a door

Causes

  • Door motor malfunction
  • Open or shorted wiring harness
  • Malfunction of door position sensors
  • Problems with the control module
  • Mechanical obstructions or door jamming

How to Fix

  1. Check the door mechanics for jamming or obstructions.
  2. Check the integrity of the wiring harness and connections
  3. Check the operation of position sensors and limit switches
  4. Check the door drive motor
  5. Scan the control module for additional errors
  6. Replace faulty components if necessary

Related codes

B2421B2423B2424

FAQ

What does the B2422 code mean?

B2422 is an OBD-II diagnostic trouble code that indicates: Automatic Back Door State

What causes a B2422 error code?

The most common causes of B2422 include: Door motor malfunction; Open or shorted wiring harness; Malfunction of door position sensors; Problems with the control module.

How do I fix a B2422 diagnostic trouble code?

To fix B2422: Check the door mechanics for jamming or obstructions.. Check the integrity of the wiring harness and connections. Check the operation of position sensors and limit switches. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2422?

Limited driving only, diagnose soon

How much does it cost to fix B2422?

The estimated repair cost for B2422 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat