P15C9 GMC Code - Electric A/C Compressor Status 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
- P15C9 GMC indicates Electric A/C Compressor Status 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.
Code P15C9 GMC Description
What are the Possible Causes of the DTC P15C9 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 P15C9 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 P15C9 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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Frequently Asked Questions about P15C9 GMC Code
1. What does the OBDII code P15C9 mean on a GMC?
P15C9 indicates that the Electric A/C Compressor Status Message Counter is incorrect, meaning there may be a communication issue between the compressor and the vehicle’s control module.
2. What are the common symptoms of the P15C9 code?
Symptoms may include the air conditioning not working, reduced cooling performance, or the A/C system shutting off unexpectedly.
3. What causes the P15C9 code to appear?
Common causes include faulty wiring or connections, a malfunctioning electric A/C compressor, or a software issue in the vehicle's control module.
4. Can the P15C9 code cause damage if left unresolved?
While it may not directly damage the vehicle, unresolved issues can lead to discomfort due to a lack of air conditioning and potential strain on related components.
5. How can I diagnose the P15C9 code?
Start by checking the wiring and connectors around the electric A/C compressor and control module. Use a scan tool to monitor communication signals and confirm the fault.
6. Is the electric A/C compressor likely to need replacement if P15C9 is triggered?
Not always. The issue could stem from wiring, connectors, or software rather than the compressor itself. Proper diagnosis is crucial.
7. Can a software update fix the P15C9 code?
Yes, if the issue is related to faulty programming, a software update from the manufacturer could resolve the problem.
8. What tools are needed to troubleshoot the P15C9 code?
You’ll need an OBDII scan tool, a multimeter for checking electrical circuits, and possibly technical diagrams for your vehicle.
9. How much does it cost to repair the P15C9 code?
Repair costs vary depending on the root cause. Wiring repairs are generally inexpensive, while replacing the electric A/C compressor can cost several hundred dollars.
10. Can I still drive my GMC with the P15C9 code?
Yes, but the air conditioning system may not function properly, which could be inconvenient, especially in hot weather.
Discuss the causes and fixes for P15C9 GMC OBDII Code
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