C0870 2014 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 2014 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.
Code C0870 2014 GMC Sierra Description
What are the Possible Causes of the DTC C0870 2014 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 2014 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 2014 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 2014 GMC Sierra code?
Need more information on how to fix the C0870 2014 GMC Sierra code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the C0870 2014 GMC Sierra code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about C0870 2014 GMC Sierra Code
1. What does the OBDII code C0870 mean on a 2014 GMC Sierra?
C0870 indicates an issue with the control module voltage reference circuit, often related to a voltage irregularity or disruption.
2. What are the common symptoms of code C0870 in a 2014 GMC Sierra?
Symptoms may include warning lights on the dashboard, erratic behavior of electrical components, or reduced vehicle performance.
3. What causes the C0870 code to trigger on a 2014 GMC Sierra?
Causes may include a faulty control module, damaged wiring, corroded connectors, or issues with the vehicle’s electrical grounding.
4. Can a dead battery cause the C0870 code on a 2014 GMC Sierra?
Yes, a weak or failing battery can cause voltage irregularities that may trigger the C0870 code.
5. How do you diagnose the C0870 code on a 2014 GMC Sierra?
Diagnosis involves checking for damaged wiring, inspecting connectors for corrosion, testing the battery and alternator, and using a scan tool to monitor voltage levels.
6. Can a bad alternator cause the C0870 code on a 2014 GMC Sierra?
Yes, a failing alternator can lead to inconsistent voltage supply, potentially setting the C0870 code.
7. Is the C0870 code serious on a 2014 GMC Sierra?
While not immediately critical, ignoring this code can lead to further electrical issues or compromised performance, so it should be addressed promptly.
8. What repairs are typically needed to fix the C0870 code on a 2014 GMC Sierra?
Repairs may include fixing or replacing damaged wiring, cleaning or replacing corroded connectors, or replacing the control module if faulty.
9. Can I clear the C0870 code on my 2014 GMC Sierra without fixing the issue?
Clearing the code without addressing the root cause may result in the code returning and could lead to further vehicle issues.
10. How much does it cost to repair the C0870 code on a 2014 GMC Sierra?
Repair costs vary depending on the issue but can range from $50 for minor wiring fixes to $500 or more if a control module needs replacement.
Discuss the causes and fixes for C0870 2014 GMC Sierra OBDII Code
Code C0870 2014 GMC Sierra comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
