AutoCodes – Chevrolet – B1400 2017 Chevrolet Silverado

B1400 2017 Chevrolet Silverado Code - Control Module Supply Circuit 2

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 Low 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: B1400 2017 Chevrolet Silverado indicates Control Module Supply Circuit 2.
Common causes: Common causes include Low 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 340

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 11, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1400 2017 Chevrolet Silverado 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 B1400 2017 Chevrolet Silverado - Control Module Supply Circuit 2 - AutoCodes.com — B1400 2017 Chevrolet Silverado Code - Control Module Supply Circuit 2

What does this mean?

What are the Possible Causes of the DTC B1400 2017 Chevrolet Silverado?

Low battery voltage
Faulty Control Module
Control Module harness is open or shorted
Control Module circuit poor electrical connection

How to Fix the DTC B1400 2017 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 B1400 2017 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 B1400 2017 Chevrolet Silverado code?

Need more information on how to fix the B1400 2017 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1400 2017 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 B1400 2017 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code B1400 in a 2017 Chevrolet Silverado?

The common symptoms include issues with the vehicle's electrical systems, such as power windows, door locks, and interior lighting not functioning properly.

2. What does OBDII code B1400 indicate in a 2017 Chevrolet Silverado?

Code B1400 indicates a problem with the Control Module Supply Circuit 2 in the vehicle.

3. What are the possible causes of OBDII code B1400 in a 2017 Chevrolet Silverado?

Possible causes include a faulty control module, wiring issues, blown fuses, or a malfunctioning power supply.

4. How can I diagnose the Control Module Supply Circuit 2 issue related to OBDII code B1400 in my 2017 Chevrolet Silverado?

You can diagnose the issue by checking the wiring connections, inspecting fuses, testing the control module, and verifying the power supply to the circuit.

5. Can OBDII code B1400 in a 2017 Chevrolet Silverado be reset without fixing the underlying issue?

Resetting the code without addressing the underlying problem may temporarily clear the error code, but the issue will likely resurface until the root cause is fixed.

6. Is it safe to continue driving my 2017 Chevrolet Silverado with OBDII code B1400 present?

It is not recommended to drive the vehicle with unresolved OBDII code B1400, as it may lead to further electrical system malfunctions or potential safety hazards.

7. How much does it typically cost to repair OBDII code B1400 in a 2017 Chevrolet Silverado?

The cost of repairing OBDII code B1400 can vary depending on the specific cause of the issue, but it may range from a simple fuse replacement to a more complex control module repair.

8. Can I fix OBDII code B1400 in my 2017 Chevrolet Silverado myself, or do I need professional help?

While some simple fixes like checking and replacing fuses can be done by DIY enthusiasts, diagnosing and repairing complex control module or wiring issues may require professional assistance.

9. Are there any preventive measures I can take to avoid OBDII code B1400 in my 2017 Chevrolet Silverado?

Regularly inspecting the vehicle's electrical components, ensuring proper wiring connections, and promptly addressing any electrical issues can help prevent OBDII code B1400 from occurring.

10. How long does it take to repair OBDII code B1400 in a 2017 Chevrolet Silverado?

The repair time for OBDII code B1400 can vary depending on the complexity of the issue and the availability of parts, but it may range from a quick fix to a more extensive repair job that could take several hours.