OBD Guide

B2228

Power Back Door Unit Motor Left Circuit

B2228 is an OBD-II diagnostic trouble code meaning: Power Back Door Unit Motor Left Circuit. Common causes: open or short circuit in wiring harness, electric drive motor malfunction. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • The back door does not open automatically
  • The rear door opens partially or intermittently
  • You hear clicking or other unusual noises when you try to open the door
  • The corresponding malfunction indicator lights up on the dashboard

Causes

  • Open or short circuit in wiring harness
  • Electric drive motor malfunction
  • Problems with the control unit
  • Mechanical door jamming
  • Malfunction of door position sensors

How to Fix

  1. Check wiring harness for damage
  2. Check the voltage at the motor terminals
  3. Check the operation of the electric drive motor
  4. Check the operation of the door position sensors
  5. If necessary, replace the motor or wiring harness

Related codes

FAQ

What does the B2228 code mean?

B2228 is an OBD-II diagnostic trouble code that indicates: Power Back Door Unit Motor Left Circuit

What causes a B2228 error code?

The most common causes of B2228 include: Open or short circuit in wiring harness; Electric drive motor malfunction; Problems with the control unit; Mechanical door jamming.

How do I fix a B2228 diagnostic trouble code?

To fix B2228: Check wiring harness for damage. Check the voltage at the motor terminals. Check the operation of the electric drive motor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2228?

Yes, but get it checked soon

How much does it cost to fix B2228?

The estimated repair cost for B2228 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat