AutoCodes – Mazda – P2506 Mazda

P2506 Mazda Code - ECM/PCM Power Input Signal Range/Performance

Quick Answer

When the ignition switch is turned "ON", the battery voltage is applied from the battery to the Powertrain Control Module (PCM)/Engine Control Module (ECM) through the main relay. Common causes include Low battery voltage, Faulty Powertrain Control Module (PCM)/Engine Control Module (ECM), ECM/PCM harness is open or shorted. 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: P2506 Mazda indicates ECM/PCM Power Input Signal Range/Performance.
Common causes: Common causes include Low battery voltage, Faulty Powertrain Control Module (PCM)/Engine Control Module (ECM), ECM/PCM harness is open or shorted.
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 2,013

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jan 16, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2506 Mazda Description

When the ignition switch is turned "ON", the battery voltage is applied from the battery to the Powertrain Control Module (PCM)/Engine Control Module (ECM) through the main relay. In case that the ignition switch is turned "OFF", the ECM/PCM is supplied with power through the battery power input line to control the basic operation of the vehicle. The ECM/PCM set the OBDII code when the ECM/PCM Power Input is out of factory specifications.

OBDII Code P2506 Mazda - ECM/PCM Power Input Signal Range/Performance - AutoCodes.com — P2506 Mazda Code - ECM/PCM Power Input Signal Range/Performance

What does this mean?

What are the Possible Causes of the DTC P2506 Mazda?

Low battery voltage
Faulty Powertrain Control Module (PCM)/Engine Control Module (ECM)
ECM/PCM harness is open or shorted
ECM/PCM circuit poor electrical connection

How to Fix the DTC P2506 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 P2506 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 P2506 Mazda code?

Need more information on how to fix the P2506 Mazda code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2506 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 P2506 Mazda Code

1. What are the common symptoms of OBDII code P2506 in a Mazda?

- Common symptoms include engine stalling, rough idling, loss of power, and the illumination of the check engine light.

2. What does the OBDII code P2506 in a Mazda indicate?

- The code P2506 indicates an issue with the ECM/PCM power input signal range/performance.

3. What are the possible causes of OBDII code P2506 in a Mazda?

- The possible causes include a faulty ECM/PCM power input sensor, wiring issues, a weak battery, or a problem with the charging system.

4. How can I diagnose OBDII code P2506 in my Mazda?

- You can diagnose this code by using an OBDII scanner to read the code and perform a thorough inspection of the ECM/PCM power input sensor and related wiring.

5. Is it safe to continue driving with OBDII code P2506 in my Mazda?

- It is not recommended to drive with this code as it can lead to further damage to the vehicle and potential safety hazards.

6. Can I repair OBDII code P2506 in my Mazda myself?

- Depending on your skill level, you may be able to repair this code yourself by checking and replacing the ECM/PCM power input sensor or addressing any wiring issues.

7. What are some tips for repairing OBDII code P2506 in a Mazda?

- Ensure the battery and charging system are in good condition, check for loose or damaged wiring connections, and consider consulting a professional if needed.

8. How much does it typically cost to repair OBDII code P2506 in a Mazda?

- The cost of repair can vary based on the underlying issue, but it may range from a simple sensor replacement to more extensive repairs involving the wiring or ECM/PCM.

9. Will resetting the OBDII code P2506 in my Mazda make it go away permanently?

- Resetting the code may temporarily turn off the check engine light, but if the underlying issue is not addressed, the code is likely to reappear.

10. How can I prevent OBDII code P2506 from reoccurring in my Mazda?

- Regularly maintaining your vehicle, ensuring the battery and charging system are in good condition, and addressing any related issues promptly can help prevent the code from reoccurring.