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P0800 2017 Chevrolet Silverado Code - Active Transfer Case Control Module Requested MIL Illumination

Quick Answer

The P0800 code for a 2017 Chevrolet Silverado indicates an issue with the Active Transfer Case Control Module Requested Malfunction Indicator Lamp (MIL) Illumination. Common causes include Faulty wiring connections to the Active Transfer Case Control Module, Malfunctioning transfer case control module, Sensor failures within the transfer case system. 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
P0800 2017 Chevrolet Silverado indicates Active Transfer Case Control Module Requested MIL Illumination.
Common causes
Common causes include Faulty wiring connections to the Active Transfer Case Control Module, Malfunctioning transfer case control module, Sensor failures within the transfer case system.
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 Sep 19, 2024
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Code P0800 2017 Chevrolet Silverado Description

The P0800 code for a 2017 Chevrolet Silverado indicates an issue with the Active Transfer Case Control Module Requested Malfunction Indicator Lamp (MIL) Illumination. The Active Transfer Case Control Module is responsible for controlling the operation of the vehicle's transfer case, which is a crucial component in four-wheel drive and all-wheel drive systems. When this code is triggered, it means that the module has detected a fault that requires the illumination of the MIL on the dashboard to alert the driver of a potential issue.

OBDII Code P0800 2017 Chevrolet Silverado - Active Transfer Case Control Module Requested MIL Illumination
P0800 2017 Chevrolet Silverado Code - Active Transfer Case Control Module Requested MIL Illumination

Common Causes of P0800 2017 Chevrolet Silverado

  1. Faulty wiring connections to the Active Transfer Case Control Module
  2. Malfunctioning transfer case control module
  3. Sensor failures within the transfer case system
  4. Internal transfer case problems such as damaged gears or components
  5. Corrosion or water damage affecting the transfer case components

Symptoms of P0800 2017 Chevrolet Silverado

  1. Illumination of the Malfunction Indicator Lamp (MIL) on the dashboard
  2. Difficulty shifting between two-wheel drive and four-wheel drive modes
  3. Unusual noises coming from the transfer case area
  4. Reduced traction and stability while driving in challenging road conditions
  5. Dashboard warning messages related to the transfer case system

How to Fix P0800 2017 Chevrolet Silverado

  1. Begin by using a diagnostic scanner to retrieve the specific trouble codes and identify the exact nature of the issue.
  2. Inspect the wiring connections to the Active Transfer Case Control Module for any signs of damage or corrosion, and repair or replace as needed.
  3. Test the transfer case control module and sensors for proper functionality, replacing any faulty components.
  4. Check the transfer case system for any internal problems, such as damaged gears or components, and repair or replace as necessary.
  5. Clear the trouble codes from the vehicle's computer system and test drive the vehicle to ensure that the issue has been resolved.

Cost to Fix P0800 2017 Chevrolet Silverado

The typical repair costs for addressing a P0800 code on a 2017 Chevrolet Silverado can vary depending on the specific cause of the issue. In general, the cost of parts for this repair could range from $200 to $500, while labor costs could range from $150 to $300. It's important to note that these are rough estimates, and actual costs may vary based on factors such as location, vehicle make and model, and the extent of the repairs needed. Additionally, diagnostic time and labor rates at auto repair shops can vary, with rates typically ranging between $80 and $150 per hour. It's recommended to consult with a trusted mechanic or repair shop to get a more accurate estimate for this repair.

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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 P0800 2017 Chevrolet Silverado Code

1. What does the OBDII code P0800 on a 2017 Chevrolet Silverado mean?

The code P0800 on a 2017 Chevrolet Silverado indicates an issue with the Active Transfer Case Control Module Requested MIL Illumination.

2. What are the common symptoms of OBDII code P0800 on a 2017 Chevrolet Silverado?

Common symptoms of code P0800 may include the check engine light coming on, reduced traction control functionality, and potential issues with the vehicle's transfer case.

3. What are the possible causes of OBDII code P0800 on a 2017 Chevrolet Silverado?

Potential causes of code P0800 can include a faulty transfer case control module, wiring issues, a malfunctioning transfer case actuator, or communication problems within the vehicle's network.

4. How can I diagnose the OBDII code P0800 on my 2017 Chevrolet Silverado?

Diagnosing code P0800 typically involves using a scan tool to retrieve the specific details of the fault code, checking the transfer case control module and related components for proper operation, and inspecting the wiring for any damage or corrosion.

5. Can I continue driving my 2017 Chevrolet Silverado with the OBDII code P0800?

It is not recommended to ignore code P0800 and continue driving your Silverado, as it can lead to further damage and safety concerns. It is best to have the issue diagnosed and repaired promptly.

6. How can I repair the OBDII code P0800 on my 2017 Chevrolet Silverado?

Repairing code P0800 may involve replacing the faulty transfer case control module, repairing damaged wiring, addressing communication issues, or servicing the transfer case actuator as needed.

7. Will resetting the check engine light resolve the OBDII code P0800 on my 2017 Chevrolet Silverado?

Simply resetting the check engine light may temporarily clear the code, but it will not fix the underlying issue causing code P0800. Proper diagnosis and repair are necessary to address the problem.

8. Is the OBDII code P0800 a common issue in 2017 Chevrolet Silverado vehicles?

While code P0800 is not as common as some other codes, it can still occur in 2017 Chevrolet Silverado vehicles due to various factors such as electronic component failures or wiring issues.

9. Can I prevent OBDII code P0800 from occurring in my 2017 Chevrolet Silverado?

Regular maintenance, including checking the transfer case components and wiring for any signs of wear or damage, can help prevent issues like code P0800 in your 2017 Silverado.

10. How much does it typically cost to repair OBDII code P0800 on a 2017 Chevrolet Silverado?

The cost of repairing code P0800 can vary depending on the specific cause of the issue, the needed parts, and labor costs. It is recommended to consult with a professional mechanic for an accurate estimate.

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