OBD Guide

B2029

Left Power Sliding Door Remote Control Switch 3 Signal Error

B2029 is an OBD-II diagnostic trouble code meaning: Left Power Sliding Door Remote Control Switch 3 Signal Error. Common causes: remote control switch malfunction, open or shorted wiring harness. Estimated repair cost: $56–167.

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

Symptoms

  • Left sliding door remote control malfunction
  • The door does not open/close with the button
  • Door fault indicator flashing

Causes

  • Remote control switch malfunction
  • Open or shorted wiring harness
  • Problems with the door control unit
  • Mechanical obstacles in door operation

How to Fix

  1. Check the condition of the remote control switch
  2. Inspect the wiring harness for damage
  3. Scan the control unit for errors
  4. Replace switch or wiring harness if necessary
  5. Calibrate the door control system

Related codes

FAQ

What does the B2029 code mean?

B2029 is an OBD-II diagnostic trouble code that indicates: Left Power Sliding Door Remote Control Switch 3 Signal Error

What causes a B2029 error code?

The most common causes of B2029 include: Remote control switch malfunction; Open or shorted wiring harness; Problems with the door control unit; Mechanical obstacles in door operation.

How do I fix a B2029 diagnostic trouble code?

To fix B2029: Check the condition of the remote control switch. Inspect the wiring harness for damage. Scan the control unit for errors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2029?

Limited driving only, diagnose soon

How much does it cost to fix B2029?

The estimated repair cost for B2029 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat