AutoCodes – KIA – P1521 KIA

P1521 KIA Code - Power Steering Switch Circuit

Quick Answer

P1521 KIA indicates Power Steering Switch Circuit. Common causes include Faulty Power Steering Switch, Power Steering Switch harness is open or shorted, Power Steering Switch circuit poor electrical connection. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means
P1521 KIA indicates Power Steering Switch Circuit.
Common causes
Common causes include Faulty Power Steering Switch, Power Steering Switch harness is open or shorted, Power Steering Switch circuit poor electrical connection.
Severity
Low - monitor the vehicle and repair when practical.
Can I drive?
The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
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Code Popularity 2,001
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Aug 27, 2019
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Code P1521 KIA Description

OBDII Code P1521 KIA - Power Steering Switch Circuit - AutoCodes.com
P1521 KIA Code - Power Steering Switch Circuit

What are the Possible Causes of the DTC P1521 KIA?

  • Faulty Power Steering Switch
  • Power Steering Switch harness is open or shorted
  • Power Steering Switch circuit poor electrical connection

How to Fix the DTC P1521 KIA?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1521 KIA code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1521 KIA Code

1. What does the OBDII code P1521 mean for a Kia?

P1521 indicates an issue with the power steering switch circuit, which monitors the power steering load and adjusts engine RPM accordingly.

2. What are the common symptoms of a P1521 code in a Kia?

Symptoms may include increased steering effort, erratic idle speed, engine stalling during low-speed turns, or the check engine light being illuminated.

3. What causes the P1521 code in a Kia?

Common causes include a faulty power steering pressure switch, damaged wiring or connectors in the circuit, or a malfunctioning ECM (Engine Control Module).

4. Can I drive my Kia with a P1521 code?

While the car may still be drivable, it could experience rough idling or stalling during turns, which can be dangerous. It's best to address the issue promptly.

5. How do you diagnose a P1521 code in a Kia?

Diagnosis involves checking the power steering pressure switch, inspecting wiring and connectors for damage, and using a scan tool to monitor switch operation and circuit voltage.

6. How do you fix a P1521 code on a Kia?

Repairs may include replacing the power steering pressure switch, repairing damaged wiring, or reprogramming/repairing the ECM if necessary.

7. What tools are needed to troubleshoot a P1521 code?

You'll need a diagnostic scan tool, a multimeter for checking electrical continuity, and potentially a repair manual for circuit diagrams.

8. How much does it cost to fix a P1521 code in a Kia?

Repair costs vary but typically range from $50 to $200, depending on whether the issue is a simple switch replacement or more complex wiring repairs.

9. Can a dirty power steering fluid cause the P1521 code?

Not directly, but contaminated fluid can cause increased pressure, which might lead to switch failure over time.

10. Will clearing the P1521 code fix the problem?

Clearing the code will turn off the check engine light temporarily, but the underlying issue must be resolved to prevent the code from returning.

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