OBD Guide

B2255

Slide Door Closer Switch Left Malfunction

B2255 is an OBD-II diagnostic trouble code meaning: Slide Door Closer Switch Left Malfunction. Common causes: faulty door lock switch, broken or corroded wires in the door harness. Estimated repair cost: $22–89.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$22–89 (est.)

Symptoms

  • Automatic closing of the left sliding door does not work
  • Flashing door light on dashboard
  • Door error message on display
  • The door does not lock in the closed position automatically

Causes

  • Faulty door lock switch
  • Broken or corroded wires in the door harness
  • Poor contact in connectors
  • Door control module (DCM) malfunction
  • Mechanical damage to the door mechanism

How to Fix

  1. Check the operation of the door closing switch manually (with a tester)
  2. Inspect the door wiring harness for damage.
  3. Clean connector contacts
  4. Check the power and ground of the switch circuit
  5. Replace the switch if faulty
  6. Diagnose DCM if failure is suspected

Related codes

FAQ

What does the B2255 code mean?

B2255 is an OBD-II diagnostic trouble code that indicates: Slide Door Closer Switch Left Malfunction

What causes a B2255 error code?

The most common causes of B2255 include: Faulty door lock switch; Broken or corroded wires in the door harness; Poor contact in connectors; Door control module (DCM) malfunction.

How do I fix a B2255 diagnostic trouble code?

To fix B2255: Check the operation of the door closing switch manually (with a tester). Inspect the door wiring harness for damage.. Clean connector contacts. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2255?

Yes, but get it checked soon

How much does it cost to fix B2255?

The estimated repair cost for B2255 is $22–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat