OBD Guide
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C1930

4-Wheel Active Steer Front Control Unit

C1930 is an OBD-II diagnostic trouble code meaning: 4-Wheel Active Steer Front Control Unit. Common causes: active steering control unit failure, wiring harness problems. Estimated repair cost: $167–333.

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$167–333 (est.)

Symptoms

  • Unstable steering behavior
  • Check Engine light comes on
  • Reduced steering efficiency at high speeds

Causes

  • Active steering control unit failure
  • Wiring Harness Problems
  • Faulty steering angle sensors
  • Software failure in the control unit

How to Fix

  1. System diagnostics using an OBD-II scanner
  2. Checking the integrity of the wiring harness
  3. Replacing the control unit if necessary
  4. Programming a new control unit

Related codes

C1920C1925C1935

FAQ

What does the C1930 code mean?

C1930 is an OBD-II diagnostic trouble code that indicates: 4-Wheel Active Steer Front Control Unit

What causes a C1930 error code?

The most common causes of C1930 include: Active steering control unit failure; Wiring Harness Problems; Faulty steering angle sensors; Software failure in the control unit.

How do I fix a C1930 diagnostic trouble code?

To fix C1930: System diagnostics using an OBD-II scanner. Checking the integrity of the wiring harness. Replacing the control unit if necessary. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C1930?

Limited driving only, diagnose soon

How much does it cost to fix C1930?

The estimated repair cost for C1930 is $167–333. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat