AutoCodes – Mazda – P0581 Mazda

P0581 Mazda Code - Cruise Control Multifunction Input 'A' Circuit High

Quick Answer

The Engine Control Module (ECM) monitors the Cruise Control Multi-Function Input 'A'. Common causes include Faulty Cruise Control Multifunction Switch, Cruise Control Multifunction Switch harness is open or shorted, Cruise Control Multifunction 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: P0581 Mazda indicates Cruise Control Multifunction Input 'A' Circuit High.
Common causes: Common causes include Faulty Cruise Control Multifunction Switch, Cruise Control Multifunction Switch harness is open or shorted, Cruise Control Multifunction 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 10,503

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 13, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0581 Mazda Description

The Engine Control Module (ECM) monitors the Cruise Control Multi-Function Input 'A'. The ECM sets the OBDII code when the Cruise Control Multi-Function Input 'A' is not to factory specifications.

OBDII Code P0581 Mazda - Cruise Control Multifunction Input 'A' Circuit High - AutoCodes.com — P0581 Mazda Code - Cruise Control Multifunction Input 'A' Circuit High

What does this mean?

What are the Possible Causes of the DTC P0581 Mazda?

Faulty Cruise Control Multifunction Switch
Cruise Control Multifunction Switch harness is open or shorted
Cruise Control Multifunction Switch circuit poor electrical connection

How to Fix the DTC P0581 Mazda?

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 P0581 Mazda 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.

Need more information about the P0581 Mazda code?

Need more information on how to fix the P0581 Mazda code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0581 Mazda code diagnosed by a professional: Find a repair shop in your area

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 P0581 Mazda Code

1. What does the OBDII code P0581 mean on a Mazda?

P0581 indicates a high voltage issue in the Cruise Control Multifunction Input 'A' Circuit, which is part of the cruise control system.

2. What are the common symptoms of code P0581 in a Mazda?

Symptoms include the cruise control not functioning, the cruise control light flashing or staying on, and potentially an illuminated check engine light.

3. What causes the P0581 code in a Mazda?

Common causes include a faulty cruise control switch, damaged wiring or connectors, or a malfunctioning clock spring in the steering wheel.

4. Can I drive my Mazda with the P0581 code?

Yes, you can drive the vehicle, but the cruise control system may not work properly, and ignoring the code could lead to further electrical issues.

5. How do I diagnose the P0581 code in a Mazda?

Start by inspecting the cruise control switch, wiring, and connectors for damage or corrosion. Use a multimeter to check for proper voltage in the circuit.

6. How do I fix the P0581 code in a Mazda?

Repairs may include replacing the cruise control switch, repairing damaged wiring, or replacing the clock spring if it's faulty.

7. Does the P0581 code require professional repair?

While some issues like damaged wiring can be fixed by DIY enthusiasts, diagnosing and replacing components like the clock spring may require a professional.

8. How much does it cost to fix the P0581 code in a Mazda?

Costs can vary, but replacing a cruise control switch typically ranges from $100 to $300, while a clock spring replacement may cost $200 to $500, including labor.

9. Will clearing the P0581 code with a scanner fix the problem?

Clearing the code may temporarily turn off the warning light, but the issue causing the code will still need to be addressed to prevent it from returning.

10. Can a failing battery cause the P0581 code in a Mazda?

While uncommon, electrical issues like low or fluctuating voltage from a failing battery can sometimes contribute to this code. Ensure the battery and charging system are functioning properly.