AutoCodes – Chevrolet – P0800 2014 Chevrolet Silverado

P0800 2014 Chevrolet Silverado Code - Active Transfer Case Control Module Requested MIL Illumination

Quick Answer

Control modules constantly monitor the vehicle for any condition which may adversely affect vehicle performance. Common causes include Check Active Transfer Case Control Module for codes, Faulty Active Transfer Case Control Module. 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 2014 Chevrolet Silverado indicates Active Transfer Case Control Module Requested MIL Illumination.
Common causes: Common causes include Check Active Transfer Case Control Module for codes, Faulty Active Transfer Case Control Module.
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 350

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 15, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0800 2014 Chevrolet Silverado Description

Control modules constantly monitor the vehicle for any condition which may adversely affect vehicle performance. If a condition is detected, the module sets a Diagnostic Trouble Code (DTC) and sends a serial data message to the Engine Control Module (ECM). The ECM sets a DTC to inform that the module has set a DTC. The serial data message sent by the module also contains a request for the ECM to illuminate the Malfunction Indicator Lamp (MIL).
The DTC will be set when the ECM receives a serial data message from the Active Transfer Case Control Module indicating that DTC has been set in the module.

OBDII Code P0800 2014 Chevrolet Silverado - Active Transfer Case Control Module Requested MIL Illumination - AutoCodes.com — P0800 2014 Chevrolet Silverado Code - Active Transfer Case Control Module Requested MIL Illumination

What does this mean?

What are the Possible Causes of the DTC P0800 2014 Chevrolet Silverado?

Check Active Transfer Case Control Module for codes
Faulty Active Transfer Case Control Module

How to Fix the DTC P0800 2014 Chevrolet Silverado?

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 P0800 2014 Chevrolet Silverado 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 P0800 2014 Chevrolet Silverado code?

Need more information on how to fix the P0800 2014 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0800 2014 Chevrolet Silverado 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 P0800 2014 Chevrolet Silverado Code

What does the OBDII code P0800 mean for a 2014 Chevrolet Silverado?

The P0800 code indicates that the Active Transfer Case Control Module has requested the Malfunction Indicator Lamp (MIL) to illuminate, which signifies a potential issue with the transfer case system.

What are common symptoms associated with the P0800 code?

Common symptoms may include the illumination of the check engine light, difficulty shifting between drive modes, or issues with four-wheel drive engagement.

What can cause the P0800 code to trigger?

Causes can include a malfunctioning transfer case control module, issues with wiring or connectors, faulty sensors, or problems with the transfer case itself.

How can I diagnose the P0800 code?

To diagnose the P0800 code, use an OBD-II scanner to confirm the code, check for any additional codes, inspect wiring and connectors related to the transfer case, and test the transfer case control module.

What repairs are typically needed to resolve the P0800 code?

Repairs may involve replacing a faulty transfer case control module, repairing damaged wiring, or replacing defective sensors related to the transfer case system.

Can I drive my Chevrolet Silverado with the P0800 code?

While you may be able to drive the vehicle, it is not advisable, as the transfer case may not function correctly, which could lead to more severe damage or safety issues.

How can I prevent the P0800 code from occurring?

Regular maintenance of your vehicle's drivetrain, including checking fluid levels and inspecting electrical connections, can help prevent issues that may lead to the P0800 code.

Is it safe to ignore the P0800 code?

Ignoring the P0800 code is not recommended, as it could lead to further mechanical issues, reduced vehicle performance, or unsafe driving conditions.

What should I do if the check engine light comes on with the P0800 code?

If the check engine light comes on with the P0800 code, itâ€™s best to have the vehicle diagnosed by a professional mechanic to determine the exact cause and necessary repairs.