AutoCodes – GMC – C0800 2017 GMC Sierra

C0800 2017 GMC Sierra Code - Control Module Power 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 Faulty Control Module Power, Control Module Power harness is open or shorted, Control Module Power 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: C0800 2017 GMC Sierra indicates Control Module Power Circuit.
Common causes: Common causes include Faulty Control Module Power, Control Module Power harness is open or shorted, Control Module Power 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 737

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 Sep 23, 2022

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code C0800 2017 GMC Sierra Description

The vehicle control modules or sensors monitor the system voltage to verify the system voltage is within the normal operating range. The Powertrain Control Module (PCM) sets the OBDII code when the system voltage is not to factory specifications. The following control modules will set this Diagnostic Trouble Code (DTC): Body Control Module (BCM), Instrument Panel Cluster (IPC), Radio and Sensing and Diagnostic Module (SDM).

OBDII Code C0800 2017 GMC Sierra - Control Module Power Circuit - AutoCodes.com — C0800 2017 GMC Sierra Code - Control Module Power Circuit

What does this mean?

What are the Possible Causes of the DTC C0800 2017 GMC Sierra?

Faulty Control Module Power
Control Module Power harness is open or shorted
Control Module Power circuit poor electrical connection

How to Fix the DTC C0800 2017 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 does this mean?

Code Tech Notes

- C0800:03 Control Module Power Circuit Low Voltage
- C0800:07 Control Module Power Circuit High Voltage
- C0800:0D Control Module Power Circuit High Resistance
- C0800:11 Control Module Power Circuit High Input

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C0800 2017 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.

Need more information about the C0800 2017 GMC Sierra code?

Need more information on how to fix the C0800 2017 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

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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 C0800 2017 GMC Sierra Code

1. What are the common symptoms of OBDII code C0800 on a 2017 GMC Sierra?

The common symptoms of OBDII code C0800 on a 2017 GMC Sierra include issues with starting the vehicle, a decrease in engine performance, and the illumination of the Check Engine Light.

2. What does the OBDII code C0800 indicate in a 2017 GMC Sierra?

OBDII code C0800 in a 2017 GMC Sierra indicates a problem with the control module power circuit.

3. What are the possible causes of OBDII code C0800 on a 2017 GMC Sierra?

Possible causes of OBDII code C0800 on a 2017 GMC Sierra include a faulty control module, damaged wiring or connectors, or a drained or weak vehicle battery.

4. How can I diagnose the issue related to OBDII code C0800 on my 2017 GMC Sierra?

To diagnose the issue related to OBDII code C0800 on your 2017 GMC Sierra, it is recommended to perform a thorough inspection of the control module, check the wiring and connectors for any damage, and test the vehicle battery's voltage.

5. Can I still drive my 2017 GMC Sierra with OBDII code C0800?

It is not recommended to drive your 2017 GMC Sierra with OBDII code C0800, as the issue may affect the vehicle's performance and lead to further damage if not addressed promptly.

6. How can I repair OBDII code C0800 on my 2017 GMC Sierra?

To repair OBDII code C0800 on your 2017 GMC Sierra, you may need to replace the faulty control module, repair any damaged wiring or connectors, and ensure the vehicle battery is in good condition.

7. Will resetting the OBDII codes make OBDII code C0800 disappear on my 2017 GMC Sierra?

Resetting the OBDII codes may temporarily make OBDII code C0800 disappear on your 2017 GMC Sierra, but if the underlying issue is not fixed, the code is likely to reappear.

8. Can a DIY enthusiast fix OBDII code C0800 on a 2017 GMC Sierra?

Depending on their skill level and access to tools, a DIY enthusiast may be able to fix OBDII code C0800 on a 2017 GMC Sierra by following repair guides and utilizing diagnostic equipment.

9. How much does it typically cost to repair OBDII code C0800 on a 2017 GMC Sierra at a mechanic?

The cost to repair OBDII code C0800 on a 2017 GMC Sierra at a mechanic can vary depending on the exact cause of the issue, but it may range from $100 to $500 or more, including parts and labor.

10. Is OBDII code C0800 a common issue in 2017 GMC Sierra vehicles?

While OBDII code C0800 may not be as common as some other codes, it can still occur in 2017 GMC Sierra vehicles due to various factors affecting the control module power circuit.