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C0805 2016 Chevrolet Silverado Code - Control Module Power 2 Circuit

Quick Answer

The C0805 diagnostic trouble code (DTC) for the 2016 Chevrolet Silverado indicates an issue with the Control Module Power 2 Circuit. Common causes include Faulty Wiring: Damaged or frayed wires in the power circuit can disrupt the flow of electricity to the control modules, Corroded Connectors: Corrosion at the connectors can impede electrical connections, leading to power loss, Battery Issues: A weak or failing battery may not provide sufficient voltage to the control modules. 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 Chevrolet Silverado indicates Control Module Power 2 Circuit.
Common causes
Common causes include Faulty Wiring: Damaged or frayed wires in the power circuit can disrupt the flow of electricity to the control modules, Corroded Connectors: Corrosion at the connectors can impede electrical connections, leading to power loss, Battery Issues: A weak or failing battery may not provide sufficient voltage to the control modules.
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.
What is this?
Table of contents Created and updated by William Orellana on Oct 22, 2024
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Code C0805 2016 Chevrolet Silverado Description

The C0805 diagnostic trouble code (DTC) for the 2016 Chevrolet Silverado indicates an issue with the Control Module Power 2 Circuit. This code typically arises when the vehicle's onboard diagnostic system detects an abnormal voltage or a malfunction in the power supply circuit that feeds one or more control modules. Control modules are essential components that manage various systems within the vehicle, including the engine, transmission, and safety features.

OBDII Code C0805 2016 Chevrolet Silverado - Control Module Power 2 Circuit
C0805 2016 Chevrolet Silverado Code - Control Module Power 2 Circuit

Common Causes of C0805 2016 Chevrolet Silverado

  1. Faulty Wiring: Damaged or frayed wires in the power circuit can disrupt the flow of electricity to the control modules.
  2. Corroded Connectors: Corrosion at the connectors can impede electrical connections, leading to power loss.
  3. Battery Issues: A weak or failing battery may not provide sufficient voltage to the control modules.
  4. Faulty Control Module: The control module itself may be malfunctioning, leading to incorrect readings and triggering the code.
  5. Grounding Issues: Poor grounding can cause voltage fluctuations, affecting the performance of the control modules.

Symptoms of C0805 2016 Chevrolet Silverado

  1. Check Engine Light: The most common symptom is the illumination of the check engine light on the dashboard.
  2. Engine Performance Issues: Drivers may experience rough idling, stalling, or difficulty starting the engine.
  3. Malfunctioning Electrical Systems: Other systems, such as the radio, air conditioning, or power windows, may operate inconsistently or fail to work.
  4. Erratic Dashboard Indicators: Warning lights for various systems may illuminate unexpectedly or behave erratically.
  5. Loss of Power Accessories: Power accessories like power steering or brakes may become unresponsive or exhibit reduced functionality.

How to Fix C0805 2016 Chevrolet Silverado

  1. Visual Inspection: Begin with a thorough visual inspection of the wiring and connectors associated with the Control Module Power 2 Circuit for any signs of damage or corrosion.
  2. Test Battery Voltage: Use a multimeter to check the battery voltage and ensure it is within the manufacturer's specifications.
  3. Check Ground Connections: Inspect and clean ground connections to ensure they are secure and free of corrosion.
  4. Repair or Replace Wiring: If damaged wiring or connectors are found, repair or replace them as necessary to restore proper electrical flow.
  5. Control Module Testing: If all other components check out, test the control module for functionality and replace it if it is determined to be faulty.

Cost to Fix C0805 2016 Chevrolet Silverado

The cost of repairing the C0805 code can vary widely based on the specific issue identified during diagnosis. On average, repairs may range from $100 to $500, depending on whether it involves simple wiring repairs or the replacement of control modules. Labor costs can significantly affect the total, as most auto repair shops charge between $80 and $150 per hour. In metropolitan areas or at dealerships, rates may be higher, while independent shops often offer lower rates. It is advisable to check local rates and obtain multiple estimates for a more precise understanding of potential repair costs.

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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 C0805 2016 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code C0805 in a 2016 Chevrolet Silverado?

The common symptoms of OBDII code C0805 in a 2016 Chevrolet Silverado include engine stalling, poor acceleration, and issues with the vehicle's stability control system.

2. What does OBDII code C0805 indicate in a 2016 Chevrolet Silverado?

OBDII code C0805 in a 2016 Chevrolet Silverado indicates a problem with the Control Module Power 2 Circuit. This code is related to issues with the vehicle's powertrain control module (PCM).

3. What are the possible causes of OBDII code C0805 in a 2016 Chevrolet Silverado?

Possible causes of OBDII code C0805 in a 2016 Chevrolet Silverado include a faulty powertrain control module (PCM), damaged wiring or connectors, or a malfunctioning control module power relay.

4. How can I diagnose OBDII code C0805 in a 2016 Chevrolet Silverado?

Diagnosing OBDII code C0805 in a 2016 Chevrolet Silverado typically involves using a diagnostic scanner to retrieve the fault code and then inspecting the powertrain control module (PCM), wiring, and connectors for any visible damage.

5. Can I still drive my 2016 Chevrolet Silverado with OBDII code C0805?

It is not recommended to drive your 2016 Chevrolet Silverado with OBDII code C0805, as it can lead to potential safety hazards and further damage to the vehicle's control module power circuit.

6. How can I reset OBDII code C0805 in a 2016 Chevrolet Silverado?

Resetting OBDII code C0805 in a 2016 Chevrolet Silverado involves using a diagnostic scanner to clear the code after identifying and addressing the underlying issue with the control module power circuit.

7. Is it safe to ignore OBDII code C0805 in a 2016 Chevrolet Silverado?

Ignoring OBDII code C0805 in a 2016 Chevrolet Silverado is not recommended, as it can lead to performance issues, safety concerns, and potential damage to other vehicle components over time.

8. How much does it cost to repair OBDII code C0805 in a 2016 Chevrolet Silverado?

The cost to repair OBDII code C0805 in a 2016 Chevrolet Silverado can vary depending on the underlying cause. It is best to consult a qualified mechanic for an accurate diagnosis and repair estimate.

9. Can a DIY enthusiast fix OBDII code C0805 in a 2016 Chevrolet Silverado?

While some DIY enthusiasts may have the skills to address simple issues related to OBDII code C0805, it is recommended to seek professional help for a more accurate diagnosis and proper repair to ensure the vehicle's safety and performance.

10. How can I prevent OBDII code C0805 from reoccurring in my 2016 Chevrolet Silverado?

To prevent OBDII code C0805 from reoccurring in your 2016 Chevrolet Silverado, it is essential to perform regular maintenance checks, address any underlying electrical issues promptly, and ensure the vehicle's control module power circuit is in good condition.

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