OBD Guide

C0621

Variable Effort Steering Lock/Safety Actuator Control Circuit Low

C0621 is an OBD-II diagnostic trouble code meaning: Variable Effort Steering Lock/Safety Actuator Control Circuit Low. Common causes: open or short circuit in wiring harness, malfunction of the steering lock actuator. Estimated repair cost: $56–167.

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

Symptoms

  • Unstable steering force
  • The indicator light on the dashboard comes on
  • Steering wheel lock problems

Causes

  • Open or short circuit in wiring harness
  • Malfunction of the steering lock actuator
  • Problems with the steering force control module
  • Poor contact in connectors

How to Fix

  1. Check wiring harness for damage
  2. Check connectors and contacts for oxidation and corrosion
  3. Check the steering lock actuator
  4. Check the steering force control module
  5. Replace faulty components

Related codes

Error C0621 by Vehicle Brand

FAQ

What does the C0621 code mean?

C0621 is an OBD-II diagnostic trouble code that indicates: Variable Effort Steering Lock/Safety Actuator Control Circuit Low

What causes a C0621 error code?

The most common causes of C0621 include: Open or short circuit in wiring harness; Malfunction of the steering lock actuator; Problems with the steering force control module; Poor contact in connectors.

How do I fix a C0621 diagnostic trouble code?

To fix C0621: Check wiring harness for damage. Check connectors and contacts for oxidation and corrosion. Check the steering lock actuator. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C0621?

Limited driving only, diagnose soon

How much does it cost to fix C0621?

The estimated repair cost for C0621 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat