OBD Guide

C1620

Active Yaw Control Control System

C1620 is an OBD-II diagnostic trouble code meaning: Active Yaw Control Control System. Common causes: malfunction of yaw rate sensors, wiring harness damage. Estimated repair cost: $111–556.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$111–556 (est.)

Symptoms

  • Deterioration of stability when turning
  • Check engine light comes on
  • Loss of control of the vehicle in extreme conditions

Causes

  • Malfunction of yaw rate sensors
  • Wiring harness damage
  • AYC control unit failure
  • Problems with the AYC hydraulic system

How to Fix

  1. Check error codes using an OBD-II scanner
  2. Inspect the wiring harness and connectors for damage.
  3. Check yaw rate sensors and their connections
  4. Test the AYC control unit
  5. Replace faulty components

Related codes

FAQ

What does the C1620 code mean?

C1620 is an OBD-II diagnostic trouble code that indicates: Active Yaw Control Control System

What causes a C1620 error code?

The most common causes of C1620 include: Malfunction of yaw rate sensors; Wiring harness damage; AYC control unit failure; Problems with the AYC hydraulic system.

How do I fix a C1620 diagnostic trouble code?

To fix C1620: Check error codes using an OBD-II scanner. Inspect the wiring harness and connectors for damage.. Check yaw rate sensors and their connections. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C1620?

Limited driving only, diagnose soon

How much does it cost to fix C1620?

The estimated repair cost for C1620 is $111–556. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat