AutoCodes – Chevrolet – P15C6 Chevrolet

P15C6 Chevrolet Code - Electric A/C Compressor Speed Request Signal Message Counter Incorrect

Quick Answer

The hybrid powertrain control module 2 receives serial data messages from the A/C compressor. Common causes include Faulty Electric A/C Compressor, Electric A/C Compressor harness is open or shorted, Electric A/C Compressor 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: P15C6 Chevrolet indicates Electric A/C Compressor Speed Request Signal Message Counter Incorrect.
Common causes: Common causes include Faulty Electric A/C Compressor, Electric A/C Compressor harness is open or shorted, Electric A/C Compressor 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 976

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 03, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P15C6 Chevrolet Description

The hybrid powertrain control module 2 receives serial data messages from the A/C compressor. If the message counter from the A/C compressor is not incrementing based on the currently commanded state, the hybrid powertrain control module 2 sets the DTC.

OBDII Code P15C6 Chevrolet - Electric A/C Compressor Speed Request Signal Message Counter Incorrect - AutoCodes.com — P15C6 Chevrolet Code - Electric A/C Compressor Speed Request Signal Message Counter Incorrect

What does this mean?

What are the Possible Causes of the DTC P15C6 Chevrolet?

Faulty Electric A/C Compressor
Electric A/C Compressor harness is open or shorted
Electric A/C Compressor circuit poor electrical connection

How to Fix the DTC P15C6 Chevrolet?

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 P15C6 Chevrolet 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 P15C6 Chevrolet code?

Need more information on how to fix the P15C6 Chevrolet code? Get Access to Factory Service Manuals

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Get the P15C6 Chevrolet 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 P15C6 Chevrolet Code

1. What are the common symptoms of OBDII code P15C6 in a Chevrolet related to the Electric A/C Compressor Speed Request Signal Message Counter Incorrect?

- Common symptoms include the air conditioning system not cooling properly, intermittent cooling, or the A/C compressor not engaging.

2. What can cause the OBDII code P15C6 in a Chevrolet?

- The code P15C6 typically indicates an issue with the electric A/C compressor speed request signal message counter being incorrect, which can be caused by wiring issues, faulty components, or communication errors within the A/C system.

3. How can I diagnose the OBDII code P15C6 in my Chevrolet?

- Diagnosis involves using a scan tool to retrieve the code, checking the wiring and connectors related to the electric A/C compressor, and testing the components involved in the A/C system.

4. Is it safe to continue driving with the OBDII code P15C6 in my Chevrolet?

- It is not recommended to continue driving with this code present, as it can lead to further damage to the A/C system and potentially affect the vehicle's overall performance.

5. Can I repair the OBDII code P15C6 in my Chevrolet myself?

- Repairing the code P15C6 may require advanced knowledge of automotive electrical systems and A/C systems. It is recommended to consult a professional mechanic or technician for accurate diagnosis and repair.

6. How much does it typically cost to repair the OBDII code P15C6 in a Chevrolet?

- The cost of repairing the OBDII code P15C6 can vary depending on the underlying cause of the issue, but it may involve replacing components, repairing wiring, or resetting the A/C system, which can range from a few hundred to a thousand dollars.

7. Can a faulty electric A/C compressor cause the OBDII code P15C6 in a Chevrolet?

- Yes, a faulty electric A/C compressor or issues with its speed request signal can trigger the OBDII code P15C6 in a Chevrolet.

8. Are there any DIY tips to troubleshoot the OBDII code P15C6 in my Chevrolet?

- DIY tips include checking the A/C compressor connections, inspecting the wiring for any damage, and ensuring proper communication between components in the A/C system.

9. Will resetting the OBDII code P15C6 in my Chevrolet make it go away permanently?

- Resetting the code may clear it temporarily, but if the underlying issue causing the code is not addressed, it is likely to reappear. It is crucial to diagnose and repair the root cause of the problem.

10. How long does it take to repair the OBDII code P15C6 in a Chevrolet?

- The repair time for the OBDII code P15C6 can vary depending on the complexity of the issue and the availability of parts. It may take a few hours to a full day to diagnose and repair the problem properly.