C0805 2016 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 2016 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 2016 GMC Sierra Description
What are the Possible Causes of the DTC C0805 2016 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 2016 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 2016 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 2016 GMC Sierra Code
1. What does the OBDII code C0805 mean on a 2016 GMC Sierra?
C0805 indicates an issue with the "Control Module Power 2 Circuit," which refers to a problem with the voltage supply to a specific control module.
2. What are the common symptoms of the C0805 code in a 2016 GMC Sierra?
Common symptoms include warning lights on the dashboard, intermittent electrical issues, or malfunction of systems controlled by the affected module.
3. What causes the C0805 code to be triggered?
The code can be caused by a faulty wiring harness, loose or corroded connections, a malfunctioning control module, or a problem with the vehicle's power supply circuit.
4. Can a weak battery cause the C0805 code?
Yes, a weak or failing battery can lead to insufficient voltage supply, which may trigger the C0805 code.
5. How can I diagnose the C0805 code on my 2016 GMC Sierra?
Start by inspecting the related wiring and connectors for damage or corrosion, check the battery and alternator for proper voltage output, and use a scan tool to monitor the module's power supply.
6. Is it safe to drive a 2016 GMC Sierra with the C0805 code?
Driving with this code may be unsafe if it affects critical systems like ABS or stability control. It's best to address the issue promptly.
7. How do you fix the C0805 code on a 2016 GMC Sierra?
Repairs may include fixing damaged wiring, cleaning or tightening electrical connections, replacing the faulty control module, or ensuring the battery and alternator are functioning properly.
8. What tools are needed to troubleshoot the C0805 code?
You'll need a multimeter to test voltages, a scan tool to read live data and clear the code, and basic tools to inspect and repair wiring.
9. Can the C0805 code clear itself?
The code will not clear itself unless the underlying issue is resolved. After repairs, you may need to use a scan tool to clear the code.
10. How much does it cost to fix the C0805 code on a 2016 GMC Sierra?
Repair costs can range from $50 for minor wiring repairs to $500 or more if a control module replacement is required.
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