AutoCodes – GMC – C0880 GMC

C0880 GMC Code - Control Module Voltage Reference

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: C0880 GMC indicates Control Module Voltage Reference.
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.

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Code Popularity 1,116

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 Jul 13, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C0880 GMC Description

The vehicle control modules or sensors monitor the system voltage to verify the system voltage is within the normal operating range. Damage to components, and incorrect data can occur when the voltage is out of range. The vehicle has multiple Control Modules that will set this Diagnostic Trouble Code (DTC).

OBDII Code C0880 GMC - Control Module Voltage Reference - AutoCodes.com — C0880 GMC Code - Control Module Voltage Reference

What does this mean?

What are the Possible Causes of the DTC C0880 GMC?

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

How to Fix the DTC C0880 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 C0880 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.

Need more information about the C0880 GMC code?

Need more information on how to fix the C0880 GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C0880 GMC code diagnosed by a professional: Find a repair shop in your area

Information for Specific GMC Models

C0880 2014 GMC Sierra — Control Module Voltage Reference
C0880 2015 GMC Sierra — Control Module Voltage Reference
C0880 2016 GMC Sierra — Control Module Voltage Reference
C0880 2017 GMC Sierra — Control Module Voltage Reference
C0880 2018 GMC Sierra — Control Module Voltage Reference

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 C0880 GMC Code

1. What does the OBDII code C0880 mean on a GMC vehicle?

C0880 indicates an issue with the Control Module Voltage Reference circuit, often pointing to low or unstable voltage being supplied to the module.

2. What are the common symptoms of the C0880 code in a GMC?

Symptoms may include the battery warning light illuminating, erratic instrument cluster behavior, failure of certain electrical components, or the vehicle going into limp mode.

3. What causes the C0880 code to appear?

Common causes include a failing alternator, weak battery, poor electrical connections, damaged wiring in the voltage reference circuit, or a faulty control module.

4. Can a bad alternator trigger the C0880 code?

Yes, a failing alternator can prevent the control module from receiving consistent voltage, which may trigger the C0880 code.

5. How do you diagnose the C0880 code on a GMC?

Start by checking the battery voltage and alternator output. Inspect the wiring and connections in the voltage reference circuit for damage, corrosion, or loose terminals. Use a multimeter to test for proper voltage at the control module.

6. Is the C0880 code related to a dead battery?

It can be related, as a weak or dead battery may cause insufficient voltage to the control module, leading to the C0880 code.

7. What repairs can fix the C0880 code on a GMC?

Repairs may include replacing a faulty alternator, charging or replacing the battery, repairing damaged wiring, cleaning corroded connectors, or replacing a malfunctioning control module.

8. Can I drive my GMC with the C0880 code active?

It's not recommended to drive with this code active, as it may lead to electrical failures or the vehicle entering limp mode, potentially compromising safety.

9. How much does it cost to fix the C0880 code on a GMC?

The cost varies depending on the root cause. Replacing an alternator may cost $300â€“$800, while fixing wiring issues or replacing the control module can range from $100 to $1,000 or more.

10. Does clearing the C0880 code solve the problem?

Clearing the code without addressing the underlying issue will not fix the problem. The code is likely to return until the voltage reference issue is resolved.