AutoCodes – Mazda – P0500 Mazda

P0500 Mazda Code - Vehicle Speed Sensor Circuit Malfunction

Quick Answer

The vehicle speed sensor outputs a 4 pulse signal for every revolution of the rotor shaft, which is rotated by the transmission output shaft via the driven gear. Common causes include Faulty Vehicle Speed Sensor, Vehicle speed sensor harness or connectors is open or shorted, Vehicle speed sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P0500 Mazda indicates Vehicle Speed Sensor Circuit Malfunction.
Common causes: Common causes include Faulty Vehicle Speed Sensor, Vehicle speed sensor harness or connectors is open or shorted, Vehicle speed sensor circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 43,591

How popular is this code, among other codes? Medium

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0500 Mazda Description

The vehicle speed sensor outputs a 4 pulse signal for every revolution of the rotor shaft, which is rotated by the transmission output shaft via the driven gear. After this signal is converted into a more precise rectangular waveform by the waveform shaping circuit inside the combination meter, it is then transmitted to the Engine Control Module (ECM). The ECM determines the vehicle speed based on the frequency of these pulse signals.

OBDII Code P0500 Mazda - Vehicle Speed Sensor Circuit Malfunction - AutoCodes.com — P0500 Mazda Code - Vehicle Speed Sensor Circuit Malfunction

What does this mean?

What are the Possible Causes of the DTC P0500 Mazda?

Faulty Vehicle Speed Sensor
Vehicle speed sensor harness or connectors is open or shorted
Vehicle speed sensor circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P0500 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 P0500 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 P0500 Mazda code?

Need more information on how to fix the P0500 Mazda code? Get Access to Factory Service Manuals

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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 P0500 Mazda Code

1. What are the common symptoms of OBDII code P0500 in a Mazda?

- Common symptoms include erratic speedometer readings, inoperative speedometer, harsh shifting, and the Check Engine Light illuminated.

2. What causes the OBDII code P0500 in a Mazda?

- The code is typically triggered by a malfunction in the vehicle speed sensor circuit, such as a faulty speed sensor, damaged wiring, or a bad connection.

3. How can I diagnose the Vehicle Speed Sensor Circuit Malfunction in my Mazda?

- Diagnosis usually involves checking the vehicle speed sensor for proper operation, inspecting the wiring harness for damage, and testing the sensor circuit for continuity and proper voltage.

4. Can a dirty or faulty wheel speed sensor cause code P0500 in a Mazda?

- Yes, a dirty or faulty wheel speed sensor can sometimes trigger the P0500 code by providing incorrect speed data to the vehicle's computer.

5. Is it safe to continue driving with OBDII code P0500 in my Mazda?

- It is generally not recommended to continue driving with the P0500 code, as it can lead to inaccurate speed readings and affect the proper operation of the vehicle's transmission.

6. How much does it typically cost to repair OBDII code P0500 in a Mazda?

- The cost of repairing the P0500 code can vary depending on the underlying cause, but it may range from $100 to $300 for parts and labor.

7. Can I reset the Check Engine Light caused by code P0500 in my Mazda without fixing the issue?

- While you can reset the Check Engine Light temporarily, it will likely come back on if the underlying issue triggering the P0500 code is not addressed.

8. Are there any DIY repair tips for fixing the Vehicle Speed Sensor Circuit Malfunction in my Mazda?

- DIY repair tips may include checking and cleaning the speed sensor connector, inspecting the wiring for damage, and ensuring proper sensor alignment.

9. Will replacing the vehicle speed sensor fix OBDII code P0500 in my Mazda?

- Replacing the vehicle speed sensor is a common repair for the P0500 code and often resolves the issue, especially if the sensor is faulty or damaged.

10. How long does it typically take to repair OBDII code P0500 in a Mazda?

- The repair time for the P0500 code can vary based on the specific cause and the expertise of the technician, but it may take anywhere from 1 to 3 hours to complete the repair.