AutoCodes – GMC – P15CA GMC

P15CA GMC Code - Electric A/C Compressor Sensors 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: P15CA GMC indicates Electric A/C Compressor Sensors 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 869

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 P15CA GMC 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 P15CA GMC - Electric A/C Compressor Sensors Signal Message Counter Incorrect - AutoCodes.com — P15CA GMC Code - Electric A/C Compressor Sensors Signal Message Counter Incorrect

What does this mean?

What are the Possible Causes of the DTC P15CA GMC?

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 P15CA GMC?

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 P15CA GMC 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 P15CA GMC Code

1. What are the common symptoms of OBDII code P15CA GMC?

The common symptoms of code P15CA GMC include poor air conditioning performance, unusual noises coming from the A/C system, and the A/C compressor not engaging properly.

2. What causes the OBDII code P15CA GMC to trigger?

The OBDII code P15CA GMC is triggered when the Electric A/C Compressor Sensors Signal Message Counter is incorrect, indicating a communication issue between the A/C compressor sensors and the vehicle's computer.

3. How can I diagnose the OBDII code P15CA GMC?

Diagnosing the OBDII code P15CA GMC typically involves using a scan tool to retrieve the code, checking the A/C compressor sensors for proper functioning, and inspecting the wiring and connectors for any damage or corrosion.

4. What are some repair tips for fixing OBDII code P15CA GMC?

Some repair tips for fixing code P15CA GMC include ensuring all A/C compressor sensors are properly connected, checking for any loose or damaged wiring, and clearing the code with a scan tool after making any necessary repairs.

5. Can I drive my vehicle with OBDII code P15CA GMC?

It is not recommended to drive your vehicle with the OBDII code P15CA GMC present, as it can lead to further damage to the A/C system and potentially cause overheating issues.

6. How much does it cost to repair OBDII code P15CA GMC?

The cost to repair OBDII code P15CA GMC can vary depending on the underlying issue. It is recommended to consult a professional mechanic for an accurate diagnosis and cost estimate.

7. Is OBDII code P15CA GMC a serious issue?

While OBDII code P15CA GMC may not cause immediate safety concerns, it can impact the performance of your vehicle's A/C system and should be addressed promptly to prevent further damage.

8. Can I reset OBDII code P15CA GMC without fixing the underlying issue?

Resetting the OBDII code P15CA GMC without fixing the underlying issue may temporarily clear the code, but the problem will likely reoccur until the root cause is addressed.

9. How long does it take to repair OBDII code P15CA GMC?

The repair time for OBDII code P15CA GMC can vary depending on the exact cause of the issue and the complexity of the repair. It is best to consult a professional mechanic for a more accurate time estimate.

10. Will OBDII code P15CA GMC cause my check engine light to turn on?

Yes, OBDII code P15CA GMC will typically trigger the check engine light to illuminate on your vehicle's dashboard, indicating a problem with the A/C compressor sensors signal message counter.