AutoCodes – GMC – C0870 2016 GMC Sierra

C0870 2016 GMC Sierra 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: C0870 2016 GMC Sierra 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 237

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 C0870 2016 GMC Sierra 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 C0870 2016 GMC Sierra - Control Module Voltage Reference - AutoCodes.com — C0870 2016 GMC Sierra Code - Control Module Voltage Reference

What does this mean?

What are the Possible Causes of the DTC C0870 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 C0870 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 C0870 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.

Need more information about the C0870 2016 GMC Sierra code?

Need more information on how to fix the C0870 2016 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C0870 2016 GMC Sierra code diagnosed by a professional: Find a repair shop in your area

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 C0870 2016 GMC Sierra Code

1. What does OBDII code C0870 for a 2016 GMC Sierra indicate?

The code C0870 in a 2016 GMC Sierra relates to a Control Module Voltage Reference issue.

2. What are the common symptoms of OBDII code C0870 in a 2016 GMC Sierra?

Common symptoms of code C0870 in a 2016 GMC Sierra may include erratic behavior of electronic components, such as malfunctioning sensors or systems.

3. What are the possible causes of OBDII code C0870 in a 2016 GMC Sierra?

Potential causes of code C0870 in a 2016 GMC Sierra include a faulty control module, wiring issues, or a problem with the voltage reference circuit.

4. How can I diagnose OBDII code C0870 in a 2016 GMC Sierra?

Diagnosing code C0870 in a 2016 GMC Sierra involves using a diagnostic scanner to retrieve the trouble code and then inspecting the control module, wiring, and voltage reference circuit for any faults.

5. How can I repair OBDII code C0870 in a 2016 GMC Sierra?

Repairing code C0870 in a 2016 GMC Sierra may involve replacing a faulty control module, repairing damaged wiring, or addressing issues with the voltage reference circuit as needed.

6. Are there any DIY tips for addressing OBDII code C0870 in a 2016 GMC Sierra?

While some basic troubleshooting like checking for loose connections or damaged wires can be done as a DIY step, diagnosing and repairing code C0870 often requires advanced automotive knowledge and tools.

7. Can driving with OBDII code C0870 in a 2016 GMC Sierra cause further damage?

Continuing to drive with code C0870 in a 2016 GMC Sierra may lead to further malfunctions in electronic components relying on the control module affected by the voltage reference issue.

8. Is it safe to clear the OBDII code C0870 in a 2016 GMC Sierra with a diagnostic tool?

Clearing the code C0870 in a 2016 GMC Sierra using a diagnostic tool may temporarily turn off the check engine light, but it won't address the underlying issue causing the code to trigger.

9. How much does it typically cost to repair OBDII code C0870 in a 2016 GMC Sierra?

The cost of repairing code C0870 in a 2016 GMC Sierra varies depending on the specific cause of the issue, the parts needed for repair, and labor costs at the repair facility.

10. Can a mechanic help me with diagnosing and repairing OBDII code C0870 in a 2016 GMC Sierra?

Yes, a qualified mechanic with experience in diagnosing and repairing automotive electrical issues can assist you in resolving OBDII code C0870 in a 2016 GMC Sierra.