C0805 2015 GMC Sierra Code - Control Module Power 2 Circuit
Quick Answer
The vehicle control modules or sensors monitor the system voltage to verify the system voltage is within the normal operating range. Common causes include Battery voltage, Faulty Control Module, Control Module 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
- C0805 2015 GMC Sierra indicates Control Module Power 2 Circuit.
- Common causes
- Common causes include Battery voltage, Faulty Control Module, Control Module 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.
Code C0805 2015 GMC Sierra Description
What are the Possible Causes of the DTC C0805 2015 GMC Sierra?
- Battery voltage
- Faulty Control Module
- Control Module harness is open or shorted
- Control Module circuit poor electrical connection
How to Fix the DTC C0805 2015 GMC Sierra?
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 C0805 2015 GMC Sierra 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 C0805 2015 GMC Sierra Code
1. What does the OBDII code C0805 mean on a 2015 GMC Sierra?
C0805 indicates an issue with the Control Module Power 2 Circuit, which is related to the electrical supply to one of the vehicle's control modules.
2. What are the common symptoms of the C0805 code on a 2015 GMC Sierra?
Symptoms may include warning lights on the dashboard, such as the check engine light, intermittent electrical issues, or malfunctioning systems tied to the affected control module.
3. What causes the C0805 code to trigger on a 2015 GMC Sierra?
Common causes include a blown fuse, damaged wiring, poor electrical connections, or a faulty control module.
4. Can a weak battery cause the C0805 code on a 2015 GMC Sierra?
Yes, a weak or failing battery can lead to insufficient power supply, potentially triggering the C0805 code.
5. How do I fix the C0805 code on my 2015 GMC Sierra?
Start by inspecting the fuses, wiring, and connectors for damage or corrosion. Replace any damaged components, and ensure all connections are secure. If the issue persists, the control module may need further diagnosis or replacement.
6. Is it safe to drive a 2015 GMC Sierra with the C0805 code?
It depends on the severity of the issue. While the truck may still be drivable, unresolved electrical problems could lead to further damage or system failures.
7. How much does it cost to repair the C0805 code on a 2015 GMC Sierra?
Repair costs vary, ranging from $50 for minor fixes like fuse replacement to over $500 if the control module needs replacement.
8. Can I diagnose the C0805 code on my 2015 GMC Sierra with a basic OBDII scanner?
Yes, a basic OBDII scanner can read the code, but a more advanced scanner or professional diagnosis may be needed to pinpoint the exact cause.
9. What should I check first when troubleshooting the C0805 code on a 2015 GMC Sierra?
Begin by checking the fuses related to the Control Module Power 2 Circuit and inspecting the wiring and connectors for damage or corrosion.
10. Can a failing alternator cause the C0805 code on a 2015 GMC Sierra?
Yes, a failing alternator can result in insufficient power supply to the control module, potentially triggering the C0805 code.
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