OBD Guide
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C1521

Power Steering Short in Motor Circuit

C1521 is an OBD-II diagnostic trouble code meaning: Power Steering Short in Motor Circuit. Common causes: damage to power steering motor wiring harness, power steering motor malfunction. Estimated repair cost: $56–222.

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–222 (est.)

Symptoms

  • Increased steering effort
  • Power steering fault indicator flashing
  • Power steering system failure
  • Overheating of system components

Causes

  • Damage to power steering motor wiring harness
  • Power steering motor malfunction
  • Short circuit in power supply
  • Problems with the power steering control unit
  • Corrosion of contacts or connectors

How to Fix

  1. Check wiring harness for damage
  2. Check the resistance of the power steering motor
  3. Inspect connectors and contacts for corrosion
  4. Check the power steering control unit for errors
  5. Replace faulty components if necessary

Related codes

C1520C1522C1523

FAQ

What does the C1521 code mean?

C1521 is an OBD-II diagnostic trouble code that indicates: Power Steering Short in Motor Circuit

What causes a C1521 error code?

The most common causes of C1521 include: Damage to power steering motor wiring harness; Power steering motor malfunction; Short circuit in power supply; Problems with the power steering control unit.

How do I fix a C1521 diagnostic trouble code?

To fix C1521: Check wiring harness for damage. Check the resistance of the power steering motor. Inspect connectors and contacts for corrosion. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C1521?

Limited driving only, diagnose soon

How much does it cost to fix C1521?

The estimated repair cost for C1521 is $56–222. Actual cost depends on your vehicle, location, and labor rates.

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