OBD Guide

B3825

Liftgate Lock Signal Circuit

B3825 is an OBD-II diagnostic trouble code meaning: Liftgate Lock Signal Circuit. Common causes: open or short circuit in wiring harness, rear door lock malfunction. Estimated repair cost: $56–167.

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

Symptoms

  • The back door does not open/close
  • Central locking does not work correctly
  • Alarm goes off for no reason

Causes

  • Open or short circuit in wiring harness
  • Rear door lock malfunction
  • Problems with connecting connectors
  • Malfunction of the control unit (ECU)

How to Fix

  1. Check the wiring harness for damage or corrosion.
  2. Inspect the rear door lock connectors
  3. Check the lock operation manually
  4. If necessary, replace the lock or wiring harness
  5. Reset the error using an OBD-II scanner

Related codes

Error B3825 by Vehicle Brand

FAQ

What does the B3825 code mean?

B3825 is an OBD-II diagnostic trouble code that indicates: Liftgate Lock Signal Circuit

What causes a B3825 error code?

The most common causes of B3825 include: Open or short circuit in wiring harness; Rear door lock malfunction; Problems with connecting connectors; Malfunction of the control unit (ECU).

How do I fix a B3825 diagnostic trouble code?

To fix B3825: Check the wiring harness for damage or corrosion.. Inspect the rear door lock connectors. Check the lock operation manually. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B3825?

Limited driving only, diagnose soon

How much does it cost to fix B3825?

The estimated repair cost for B3825 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat