OBD Guide
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B2220

Back Door Motor Circuit

B2220 is an OBD-II diagnostic trouble code meaning: Back Door Motor Circuit. Common causes: open or short circuit in wiring harness, rear door motor malfunction. Estimated repair cost: $56–167.

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

Symptoms

  • Automatic opening/closing of the rear door does not work
  • The back door does not respond to commands from the key fob
  • The malfunction indicator on the instrument panel is flashing

Causes

  • Open or short circuit in wiring harness
  • Rear door motor malfunction
  • Problems with the control unit
  • Corrosion of contacts or connectors

How to Fix

  1. Check the wiring harness for breaks and short circuits
  2. Test the rear door motor
  3. Check connectors and contacts for corrosion
  4. Replace faulty components if necessary
  5. Reset the error and check the system operation

Related codes

B2221B2222B2223

FAQ

What does the B2220 code mean?

B2220 is an OBD-II diagnostic trouble code that indicates: Back Door Motor Circuit

What causes a B2220 error code?

The most common causes of B2220 include: Open or short circuit in wiring harness; Rear door motor malfunction; Problems with the control unit; Corrosion of contacts or connectors.

How do I fix a B2220 diagnostic trouble code?

To fix B2220: Check the wiring harness for breaks and short circuits. Test the rear door motor. Check connectors and contacts for corrosion. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2220?

Limited driving only, diagnose soon

How much does it cost to fix B2220?

The estimated repair cost for B2220 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat