OBD Guide

B257E

B Pillar Power Sliding Door Lockout Switch Circuit High

B257E is an OBD-II diagnostic trouble code meaning: B Pillar Power Sliding Door Lockout Switch Circuit High. Common causes: short circuit to positive in the switch circuit, lock switch malfunction. Estimated repair cost: $56–167.

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

Symptoms

  • Sliding door lock system malfunction
  • Error message on the dashboard
  • The sliding door may open unintentionally

Causes

  • Short circuit to positive in the switch circuit
  • Lock switch malfunction
  • Wiring harness damage
  • Problems with the sliding door control module

How to Fix

  1. Check the wiring harness for damage
  2. Check the condition of the switch contacts
  3. Measure the resistance of the lock switch
  4. Check the voltage parameters in the circuit
  5. If necessary, replace the switch or repair the wiring harness

Related codes

FAQ

What does the B257E code mean?

B257E is an OBD-II diagnostic trouble code that indicates: B Pillar Power Sliding Door Lockout Switch Circuit High

What causes a B257E error code?

The most common causes of B257E include: Short circuit to positive in the switch circuit; Lock switch malfunction; Wiring harness damage; Problems with the sliding door control module.

How do I fix a B257E diagnostic trouble code?

To fix B257E: Check the wiring harness for damage. Check the condition of the switch contacts. Measure the resistance of the lock switch. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B257E?

Limited driving only, diagnose soon

How much does it cost to fix B257E?

The estimated repair cost for B257E is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat